阅读说明：本技术 一种基于动压滑动轴承的x射线管的运行控制方法和系统 (Operation control method and system of X-ray tube based on dynamic pressure sliding bearing ) 是由 肖鑫 张曦 于 2021-09-17 设计创作，主要内容包括：本申请涉及一种基于动压滑动轴承的旋转阳极X射线管的运行控制方法和系统,方法包括：获取X射线管相关的工作参数；所述工作参数包括：X射线管中动压滑动轴承的转动部件的转速、X射线管工作电流或X射线管工作电压中的至少一种；基于所述工作参数,确定所述动压滑动轴承的运行稳定性；基于所述运行稳定性对所述X射线管或所述X射线管中所述动压滑动轴承进行运行控制。(The application relates to an operation control method and system of a rotary anode X-ray tube based on a dynamic pressure sliding bearing, wherein the method comprises the following steps: acquiring relevant working parameters of the X-ray tube; the working parameters comprise: at least one of the rotation speed of the rotating component of the dynamic pressure sliding bearing in the X-ray tube, the working current of the X-ray tube or the working voltage of the X-ray tube; determining the operation stability of the dynamic pressure sliding bearing based on the working parameters; and performing operation control on the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the operation stability.)

1. An operation control method of a rotary anode X-ray tube based on a dynamic pressure sliding bearing comprises the following steps:

acquiring relevant working parameters of the X-ray tube; the working parameters comprise: at least one of the rotation speed of the rotating component of the dynamic pressure sliding bearing in the X-ray tube, the working current of the X-ray tube or the working voltage of the X-ray tube;

determining the operation stability of the dynamic pressure sliding bearing based on the working parameters;

and performing operation control on the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the operation stability.

2. The method of claim 1, the controlling operation of the X-ray tube or the hydrodynamic plain bearing in the X-ray tube based on the operational stability comprising;

feeding back the operation stability;

if the operation stability does not meet the preset condition, selecting at least one parameter in the working parameters based on the fed back operation stability by the user for adjustment so as to enable the operation stability to meet the preset condition;

and performing operation control on the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the adjusted working parameters.

3. The method of claim 1, the operational control of the X-ray tube or the hydrodynamic plain bearing in the X-ray tube based on the operational stability comprising:

if the operation stability is judged not to meet the preset condition, adjusting at least one parameter in the working parameters to enable the operation stability to meet the preset condition; and are

And performing operation control on the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the adjusted working parameters.

4. The method of claim 1, said determining operational stability of said hydrodynamic plain bearing based on said operating parameters comprising:

processing the plurality of working parameters through an operation stability evaluation model to obtain the operation stability of the dynamic pressure sliding bearing;

or determining the operation stability corresponding to the various working parameters according to the mapping relation between the various working parameters and the operation stability.

5. The method according to claim 1, wherein when the hydrodynamic plain bearing is operated, the rotating member rotates and forms a fluid layer with the stationary member; the determining the operational stability of the hydrodynamic plain bearing based on the operating parameter includes:

determining a fluid temperature and a spatial structural deformation of the fluid layer based on the operating voltage, the operating current, and an operating time of the X-ray tube;

determining the bearing capacity of the dynamic pressure sliding bearing; and the number of the first and second groups,

the operation stability is determined based on the fluid temperature of the fluid layer, the spatial structural deformation of the fluid layer, the rotation speed of the rotating member, and the bearing capacity of the dynamic pressure sliding bearing.

6. The method of claim 5, wherein the determining the operational stability based on the fluid temperature of the fluid layer, the spatial structural deformation of the fluid layer, the rotational speed of the rotating member, and the bearing capacity of the hydrodynamic plain bearing comprises:

determining a fluid thickness distribution and a fluid viscosity of the fluid layer based on the fluid temperature of the fluid layer and the spatial structural deformation of the fluid layer;

the running stability is determined based on the fluid thickness distribution, the fluid viscosity, the rotation speed of the rotating member, and the bearing capacity of the dynamic pressure plain bearing.

7. The method of claim 5, the X-ray tube mounted on a rotatable device;

the bearing force of the hydrodynamic plain bearing is determined based on the device rotational speed of the rotatable device and the gravitational force of the hydrodynamic plain bearing.

8. The method of claim 7, the plurality of operating parameters further comprising the device rotational speed of the rotatable device, the effecting operational control of the dynamic plain bearing in the X-ray tube or the X-ray tube based on the operational stability comprising:

if the operation stability is judged not to meet the preset condition, adjusting the working parameters through at least one of the following adjustments so as to adjust the operation stability to meet the preset condition:

adjusting at least one of the operating voltage or the operating current; or

Adjusting at least one of a rotational speed of the rotating component or the device rotational speed of the rotatable device; and

and performing operation control on the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the adjusted working parameters.

9. An operation control system of a dynamic pressure sliding bearing-based rotary anode X-ray tube, comprising:

the parameter acquisition module is used for acquiring relevant working parameters of the X-ray tube; the working parameters comprise: at least one of the rotation speed of the rotating component of the dynamic pressure sliding bearing in the X-ray tube, the working current of the X-ray tube or the working voltage of the X-ray tube;

the stability pre-estimation module is used for determining the operation stability of the dynamic pressure sliding bearing based on the working parameters;

and the operation control module is used for controlling the operation of the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the operation stability.

10. An apparatus for controlling the operation of a rotary anode X-ray tube based on hydrodynamic plain bearings, the apparatus comprising at least one processor and at least one memory device for storing instructions which, when executed by the at least one processor, carry out the method according to any one of claims 1 to 8.

Technical Field

The application relates to the technical field of X-ray tubes, in particular to an operation control method and system of an X-ray tube based on a dynamic pressure sliding bearing.

Background

The dynamic pressure sliding bearing is a bearing lubricated by using a dynamic liquid such as a fluid, a cavity is formed between a shaft sleeve and a core shaft of the dynamic pressure sliding bearing, fluid media such as liquid, gas and the like are filled in the cavity, and the fluid media interact with the shaft sleeve and the core shaft when the dynamic pressure sliding bearing operates. Hydrodynamic plain bearings are used as rotating elements in a large number of X-ray scanning devices, for example as bearings for the rotating anode of an X-ray tube in an X-ray device.

When the dynamic pressure sliding bearing operates, the interaction between the fluid medium and the shaft sleeve and the mandrel can influence the operation stability of the dynamic pressure sliding bearing, if the operation stability of the dynamic pressure sliding bearing is not good, the operation effect of the dynamic pressure sliding bearing can be influenced and the device damage can be caused, and the operation effect of X-ray scanning equipment such as X-ray equipment can be influenced and the device damage can be caused. In order to enable the stability of the dynamic pressure sliding bearing during operation to meet the requirement, the operation control method and system of the rotary anode X-ray tube based on the dynamic pressure sliding bearing are urgently needed to be provided.

Disclosure of Invention

The present disclosure provides a method and a system for controlling operation of a rotary anode X-ray tube based on a dynamic pressure sliding bearing, in which operation stability is determined based on a working parameter related to the X-ray tube, so as to accurately estimate operation stability corresponding to a preset working parameter, and operation of the dynamic pressure sliding bearing in the X-ray tube or the X-ray tube can be controlled based on whether the operation stability meets a preset condition, so as to effectively control stability of the dynamic pressure sliding bearing in the X-ray tube or the X-ray tube in actual operation to meet a requirement.

One of the embodiments of the present specification provides an operation control method for a dynamic pressure sliding bearing-based rotary anode X-ray tube, the method including: acquiring relevant working parameters of the X-ray tube; the working parameters comprise: at least one of the rotation speed of the rotating component of the dynamic pressure sliding bearing in the X-ray tube, the working current of the X-ray tube or the working voltage of the X-ray tube; determining the operation stability of the dynamic pressure sliding bearing based on the working parameters; and performing operation control on the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the operation stability.

One of the embodiments of the present specification provides an operation control system of a dynamic pressure sliding bearing-based rotary anode X-ray tube, the system including: the parameter acquisition module is used for acquiring relevant working parameters of the X-ray tube; the working parameters comprise: at least one of the rotation speed of the rotating component of the dynamic pressure sliding bearing in the X-ray tube, the working current of the X-ray tube or the working voltage of the X-ray tube; the stability pre-estimation module is used for determining the operation stability of the dynamic pressure sliding bearing based on the working parameters; and the operation control module is used for controlling the operation of the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the operation stability.

One of the embodiments of the present specification provides an operation control apparatus for a dynamic pressure plain bearing-based rotary anode X-ray tube, the apparatus including at least one processor and at least one storage device, the storage device being configured to store instructions, and when the at least one processor executes the instructions, implementing an operation control method for the dynamic pressure plain bearing-based rotary anode X-ray tube.

Drawings

The present description will be further explained by way of exemplary embodiments, which will be described in detail by way of the accompanying drawings. These embodiments are not intended to be limiting, and in these embodiments like numerals are used to indicate like structures, wherein:

FIG. 1 is a schematic diagram of an application scenario of a system for controlling the operation of a dynamic pressure plain bearing based rotating anode X-ray tube according to some embodiments herein;

FIG. 2 is a block diagram of a system for controlling the operation of a dynamic pressure plain bearing based rotating anode X-ray tube according to some embodiments of the present disclosure;

FIG. 3 is an exemplary flow chart of a method of controlling the operation of a dynamic pressure plain bearing based rotary anode X-ray tube according to some embodiments herein;

FIG. 4 is an exemplary schematic view of a hydrodynamic plain bearing according to some embodiments herein;

FIG. 5 is an exemplary flow chart of a method of deriving operational stability of a hydrodynamic plain bearing according to some embodiments described herein;

fig. 6 illustrates operation control of the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the determination results according to some embodiments of the present disclosure.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.

It should be understood that "system", "device", "unit" and/or "module" as used herein is a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, other words may be substituted by other expressions if they accomplish the same purpose.

As used in this specification and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

Flow charts are used in this description to illustrate operations performed by a system according to embodiments of the present description. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, the various steps may be processed in reverse order or simultaneously. Meanwhile, other operations may be added to the processes, or a certain step or several steps of operations may be removed from the processes.

The operation control method and system of the rotary anode X-ray tube based on the dynamic pressure sliding bearing disclosed by the specification can be applied to various X-ray devices to control the operation of the dynamic pressure sliding bearing in the X-ray tube or the X-ray tube in the X-ray device. For example, it can be applied to a radiation emitting device employing a rotary anode X-ray tube based on a dynamic pressure sliding bearing, such as an X-ray scanning device (including but not limited to one of a Computer Radiography (CR), a Digital Radiography (DR), a Computed Tomography (CT), a flat-film X-ray machine, a mobile X-ray device (such as a mobile C-arm machine), a digital subtraction angiography scanner (DSA), an Emission Computed Tomography (ECT), etc., or any combination thereof), a radiotherapy device (including but not limited to a medical linear accelerator (RT), etc.), and the like. For illustrative purposes only, the present application will take an X-ray scanning device as an example and describe the disclosed technical solution in detail. Wherein the X-ray scanning device comprises an X-ray tube comprising a cathode and a rotating anode, which may comprise an anode target and a hydrodynamic plain bearing. The anode target is fixed on the dynamic pressure sliding bearing, when the X-ray tube works, the rotating shaft (namely a rotating part) of the dynamic pressure sliding bearing can be made to rotate by driving the dynamic pressure sliding bearing to enable the anode target to rotate, and the cathode emits electron beams to bombard the rotating anode target to generate X-rays based on the working voltage and the working current of the X-ray tube.

FIG. 4 is an exemplary schematic diagram of a hydrodynamic plain bearing according to some embodiments herein. As shown in fig. 4, the hydrodynamic plain bearing includes a mandrel 410, a sleeve 420, and a fluid layer 430 formed between the mandrel and the sleeve when the hydrodynamic plain bearing operates, and the fluid layer 430 is filled with a fluid medium such as liquid (e.g., liquid metal, oil, water, etc.), gas (e.g., air, carbon dioxide, nitrogen, etc.), and the like. The hydrodynamic plain bearing may be driven by a drive system to rotationally run the spindle or sleeve, and the rotationally run component may be referred to as a rotational component. When the dynamic pressure sliding bearing operates, the fluid medium in the fluid layer can prevent the mandrel and the shaft sleeve from contacting with each other, so that the lubrication action between the mandrel and the shaft sleeve is realized, the friction resistance is reduced, and the surfaces of the mandrel and the shaft sleeve are protected.

In some embodiments, the X-ray tube or a hydrodynamic plain bearing in the X-ray tube will operate according to set operating parameters. When the dynamic pressure sliding bearing in the X-ray tube or the X-ray tube operates, the interaction between the fluid medium and the shaft sleeve and the core shaft can be influenced by the arrangement of working parameters, so that the operation stability of the dynamic pressure sliding bearing is influenced, and adverse effects are brought to the operation of the dynamic pressure sliding bearing in the X-ray tube or the X-ray tube. For example, if the dynamic pressure sliding bearing has poor or unsatisfactory operation stability, the dynamic pressure sliding bearing may destabilize its rotation, which may cause instability and shaking of the anode target on the bearing during rotation, and may also cause a shift in the focal position of the X-ray tube, which may affect the imaging quality of the X-ray tube during scanning imaging, and may also cause wear of the dynamic pressure sliding bearing, thereby reducing the lifetime of the dynamic pressure sliding bearing.

The specification provides a method and a system for controlling the operation of a rotary anode X-ray tube based on a dynamic pressure sliding bearing, wherein the operation stability of the dynamic pressure sliding bearing is estimated based on relevant working parameters of the X-ray tube, whether the estimated operation stability parameters meet preset conditions can be judged, then the operation of the dynamic pressure sliding bearing in the X-ray tube or the X-ray tube is controlled based on the judgment result, and the stability of the dynamic pressure sliding bearing in the dynamic pressure X-ray tube or the X-ray tube during operation can be effectively ensured and improved.

Fig. 1 is a schematic view of an application scenario of an operation control system of a dynamic pressure sliding bearing-based rotary anode X-ray tube according to some embodiments of the present disclosure.

As shown in fig. 1, an application scenario 100 of an operation control system of a dynamic pressure plain bearing-based rotary anode X-ray tube may include an X-ray scanning device 110, a network 120, a terminal 130, a processing device 140, and a storage device 150.

The X-ray scanning device 110 may include an X-ray tube (not shown in the figures) and may also include one or more other components. The X-ray tube may include a cathode, a rotating anode and a hydrodynamic plain bearing (not shown in the figures). The rotating anode in the X-ray tube may be rotated based on a hydrodynamic plain bearing. In some embodiments, the X-ray tube in the X-ray scanning device 110 and the hydrodynamic plain bearing in the X-ray tube may be operated according to set operating parameters. For further explanation of the operating parameters, the X-ray tube and the operation of the hydrodynamic plain bearing in the X-ray tube, reference is made to fig. 3 and its associated description.

The terminal 130 may include a mobile device 131, a tablet computer 132, a notebook computer 133, and the like, or any combination thereof. In some embodiments, the terminal 130 may interact with other components in the application scenario 100 of a dynamic pressure plain bearing based rotary anode X-ray tube operation control system over a network. For example, terminal 130 may send one or more control instructions to X-ray scanning device 110 to controlThe X-ray tube in the X-ray scanning apparatus 110 and the dynamic pressure sliding bearing in the X-ray tube operate in accordance with instructions. For another example, the terminal 130 may also receive a processing result of the processing device 140, such as an operation stability, a judgment result of the operation stability, and the like. In some embodiments, the mobile device 131 may include smart home devices, wearable devices, mobile devices, virtual reality devices, augmented reality devices, and the like, or any combination thereof. In some embodiments, the smart home devices may include smart lighting devices, smart appliance control devices, smart monitoring devices, smart televisions, smart cameras, interphones, and the like, or any combination thereof. In some embodiments, the wearable device may include a bracelet, footwear, glasses, helmet, watch, clothing, backpack, smart accessory, and the like, or any combination thereof. In some embodiments, the mobile device may comprise a mobile phone, a Personal Digital Assistant (PDA), a gaming device, a navigation device, a POS device, a laptop, a tablet, a desktop, or the like, or any combination thereof. In some embodiments, the virtual reality device and/or augmented reality device may include a virtual reality helmet, virtual reality glasses, a virtual reality patch, an augmented reality helmet, augmented reality glasses, an augmented reality patch, and the like, or any combination thereof. For example, the virtual reality device and/or augmented reality device may include a Google Glass^TM、Oculus Rift^TM、HoloLens^TMOr Gear VR^TMAnd the like. In some embodiments, the terminal 130 may be part of the processing device 140.

In some embodiments, processing device 140 may process data and/or information obtained from X-ray scanning device 110, terminal 130, and/or storage device 150. For example, the processing device 140 may derive operational stability based on X-ray tube related operating parameters. For another example, the processing device 140 may determine whether the operation stability satisfies the preset condition, and may adjust each operating parameter so that the operation stability satisfies the preset condition, and the like. In some embodiments, the processing device 140 may also control the operation of the X-ray tube in the X-ray scanning device 110 or the hydrodynamic plain bearing in the X-ray tube. For example, the processing device 140 may control the X-ray tube in the X-ray scanning device 110 or the dynamic pressure sliding bearing in the X-ray tube to operate based on set operating parameters such as operating voltage, operating current, rotational speed of a rotating member of the dynamic pressure sliding bearing, rotational speed of a rotating device, and the like. In some embodiments, the processing device 140 may include a single server or a group of servers. The server group may be centralized or distributed. In some embodiments, the processing device 140 may be local or remote. For example, processing device 140 may access information and/or data from X-ray scanning device 110, terminal 130, and/or storage device 150 via network 120. As another example, the processing device 140 may be directly connected to the X-ray scanning device 110, the terminal 130, and/or the storage device 150 to access information and/or data. In some embodiments, the processing device 140 may be implemented on a cloud platform. For example, the cloud platform may include one or a combination of private cloud, public cloud, hybrid cloud, community cloud, distributed cloud, cross-cloud, multi-cloud, and the like.

Storage device 150 may store data (e.g., operating parameters, etc.), instructions, and/or any other information. In some embodiments, the storage device 150 may store data obtained from the X-ray scanning device 110, the terminal 130, and/or the processing device 140, for example, the storage device 150 may store X-ray tube related operating parameters obtained from the X-ray scanning device 110. In some embodiments, storage device 150 may store data and/or instructions for execution or use by processing device 140 to perform the example methods described herein. For example, the storage device 140 may store the operational stability of the hydrodynamic plain bearing. As another example, the storage device 140 may also store the adjusted operating parameters. In some embodiments, the storage device 150 may include one or a combination of mass storage, removable storage, volatile read-write memory, read-only memory (ROM), and the like. Mass storage may include magnetic disks, optical disks, solid state drives, removable storage, and the like. The removable memory may include a flash drive, floppy disk, optical disk, memory card, ZIP disk, magnetic tape, or the like. The volatile read and write memory may include Random Access Memory (RAM). The RAM may include Dynamic Random Access Memory (DRAM), double data rate synchronous dynamic random access memory (DDR-SDRAM), Static Random Access Memory (SRAM), silicon controlled random access memory (T-RAM), zero capacitance random access memory (Z-RAM), and the like. The ROM may include mask read-only memory (MROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), digital versatile discs, and the like. In some embodiments, the storage device 150 may be implemented by a cloud platform as described herein. For example, the cloud platform may include one or a combination of private cloud, public cloud, hybrid cloud, community cloud, distributed cloud, cross-cloud, multi-cloud, and the like. In some embodiments, the storage device 150 may be part of the processing device 140, or may be separate and connected directly or indirectly to the processing device 140.

The network 120 may comprise any suitable network capable of facilitating information and/or data exchange for the application scenario 100 of a dynamic pressure plain bearing based rotary anode X-ray tube operation control system. In some embodiments, one or more components of the application scenario 100 of the dynamic pressure plain bearing based rotary anode X-ray tube operation control system (e.g., the X-ray scanning device 110, the terminal 130, the processing device 140, the storage device 150, etc.) may exchange information and/or data with one or more components of the application scenario 100 of the dynamic pressure plain bearing based rotary anode X-ray tube operation control system via the network 120. For example, processing device 140 may obtain X-ray tube related operating parameters from X-ray scanning device 110 or storage device 150 via network 120. The network 120 may include one or more of a public network (e.g., the internet), a private network (e.g., a Local Area Network (LAN), a Wide Area Network (WAN)), etc.), a wired network (e.g., ethernet), a wireless network (e.g., an 802.11 network, a wireless Wi-Fi network, etc.), a cellular network (e.g., a Long Term Evolution (LTE) network), a frame relay network, a Virtual Private Network (VPN), a satellite network, a telephone network, a router, a hub, a server computer, etc. For example, network 120 may include a wireline network, a fiber optic network, a telecommunications network, a local area network, a Wireless Local Area Network (WLAN), a Metropolitan Area Network (MAN), a Public Switched Telephone Network (PSTN), Bluetooth, or a Bluetooth network^TMNetwork, ZigBee^TMNetwork, Near Field Communication (NFC) network, and the like. In some embodiments, network 120 may include one or more network access points. For example, the network 120 may include wired and/or wireless network access points, such as base stations and/or internet exchange points, through which one or more components of the medical image acquisition system 100 may connect to the network 120 to exchange data and/or information.

Fig. 2 is a block diagram of an operational control system for a dynamic pressure plain bearing based rotary anode X-ray tube according to some embodiments of the present application.

As shown in fig. 2, the operation control system 200 of the dynamic pressure sliding bearing-based rotary anode X-ray tube may include a parameter obtaining module 210, a stability estimation module 220, and an operation control module 230.

In some embodiments, the parameter acquisition module 210 may be configured to acquire X-ray tube related operating parameters; the working parameters comprise: at least one of a rotational speed of a rotating member of a dynamic pressure sliding bearing in the X-ray tube, an X-ray tube operating current, or an X-ray tube operating voltage.

In some embodiments, the stability estimation module 220 may be configured to determine the operational stability of the hydrodynamic plain bearing based on the operating parameter. In some embodiments, the stability estimation module 220 may be further configured to process the plurality of operating parameters through an operation stability evaluation model to obtain the operation stability of the dynamic pressure sliding bearing; or determining the operation stability corresponding to the various working parameters according to the mapping relation between the various working parameters and the operation stability.

In some embodiments, when the hydrodynamic plain bearing is operated, the rotating member rotates and forms a fluid layer with the stationary member.

In some embodiments, the stability estimation module 220 may be further configured to determine a fluid temperature and a spatial structural deformation of the fluid layer based on the operating voltage, the operating current, and an operating time of the X-ray tube; determining the bearing capacity of the dynamic pressure sliding bearing; and determining the operation stability based on the fluid temperature of the fluid layer, the spatial structural deformation of the fluid layer, the rotation speed of the rotating member, and the bearing capacity of the dynamic pressure sliding bearing. In some embodiments, the stability prediction module 220 may be further configured to determine a fluid thickness distribution and a fluid viscosity of the fluid layer based on the fluid temperature of the fluid layer and the spatial structural deformation of the fluid layer; the running stability is determined based on the fluid thickness distribution, the fluid viscosity, the rotation speed of the rotating member, and the bearing capacity of the dynamic pressure plain bearing.

In some embodiments, the hydrodynamic plain bearing may be mounted on a rotatable device, and the operating parameter may further include a device rotational speed of the rotatable device.

In some embodiments, the stability estimation module 220 may be further configured to determine the bearing capacity of the hydrodynamic plain bearing based on a device rotational speed of the rotatable device and a gravitational force of the hydrodynamic plain bearing.

In some embodiments, the operation control module 230 may be configured to perform operation control of the X-ray tube or the dynamic pressure plain bearing in the X-ray tube based on the operation stability. In some embodiments, the operational control module 230 may also be used to feedback the operational stability; receiving an instruction of selecting at least one of the working parameters for adjustment based on the feedback operation stability from a user; wherein the adjustment enables the operation stability to meet a preset condition; and performing operation control on the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the adjusted working parameters. In some embodiments, the operation control module 230 may be further configured to adjust at least one of the operating parameters to enable the operation stability to meet a preset condition if it is determined that the operation stability does not meet the preset condition; and controlling the operation of the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the adjusted working parameters. In some embodiments, the operation control module 230 may be further configured to adjust the operating parameter by at least one of the following adjustments if it is determined that the operating stability does not satisfy the preset condition, so as to adjust the operating stability to satisfy the preset condition: adjusting at least one of the operating voltage or the operating current; or adjusting at least one of a rotational speed of the rotating component or the device rotational speed of the rotatable device; and performing operation control on the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the adjusted working parameters.

For more detailed descriptions of the parameter obtaining module 210, the stability estimation module 220, and the operation control module 230, reference may be made to fig. 3, fig. 5, and fig. 6 and their related descriptions, which are not described herein again.

It will be appreciated by those skilled in the art that, given the teachings of the present system, any combination of modules or sub-system configurations may be used to connect to other modules without departing from such teachings. For example, the parameter obtaining module 210 and the stability estimation module 220 disclosed in fig. 2 may be implemented by one module to realize the functions of the two modules. For example, each module may share one memory module, and each module may have its own memory module. Such variations are within the scope of the present application.

Fig. 3 is an exemplary flow chart of a method of controlling the operation of a dynamic pressure plain bearing based rotary anode X-ray tube according to some embodiments described herein.

In some embodiments, one or more of the operations in flow 300 may be implemented by processing device 140. For example, the process 300 may be stored in the storage device 150 in the form of instructions and executed and/or invoked by the processing device 140.

As shown in fig. 3, the process 300 may include the following operations.

At step 310, X-ray tube related operating parameters are acquired.

In some embodiments, step 310 may be performed by parameter acquisition module 210.

As previously mentioned, the X-ray tube and the hydrodynamic plain bearing in the X-ray tube will operate according to the set operating parameters. For example, the rotating member of the dynamic pressure sliding bearing is rotated according to the set operating parameters, and the X-ray tube is caused to emit radiation. In some embodiments, the rotating member of the hydrodynamic plain bearing may be a spindle or a sleeve. For example, the dynamic pressure sliding bearing may be operated with the spindle fixed and the sleeve rotated, or with the sleeve fixed and the spindle rotated.

In some embodiments, the operating parameters may be obtained from the X-ray tube or from a control system of the hydrodynamic plain bearing in the X-ray tube or from a memory space in which the X-ray tube related operating parameters are stored, or may be input by a user to obtain the X-ray tube related operating parameters.

In some embodiments, the X-ray tube related operating parameters may include any one or more of the following: an operating voltage of the X-ray tube, an operating current of the X-ray tube, an operating power of the X-ray tube (also referred to as an exposure power, which may be determined based on the operating voltage and the operating current of the X-ray tube), an operating time of the X-ray tube (also referred to as an X-ray tube exposure time), a rotational speed of a rotating member of the dynamic pressure sliding bearing, and the like.

In some embodiments, the X-ray tube may be mounted on a rotatable device (e.g., a rotatable gantry on which the X-ray tube resides), which may or may not rotate. For example, the X-ray tube is stationary for stationary X-ray scanning and, for example, the X-ray tube rotates with the gantry to perform rotational scanning.

In some embodiments, the operating parameter may also include a device rotational speed of the rotatable device. The rotatable device on which the X-ray tube is located may be rotated at the set device rotational speed. In some embodiments, the rotation of the rotatable device in which the hydrodynamic plain bearing is located may affect the bearing capacity of the hydrodynamic plain bearing, and reference may be made to fig. 5 and its associated description for more details regarding the bearing capacity of the hydrodynamic plain bearing.

And 320, determining the operation stability of the dynamic pressure sliding bearing based on the working parameters.

In some embodiments, step 320 may be performed by stability estimation module 220.

In some embodiments, the operational stability of the hydrodynamic plain bearing may be characterized by the result of stabilization or instability, and also by the degree of stabilization (e.g., score, etc.), and the like.

In some embodiments, the operational stability of the hydrodynamic plain bearing may also be characterized by various parameters. The estimated parameters for characterizing the operational stability of the hydrodynamic plain bearing may be referred to as operational stability parameters.

In some embodiments, based on X-ray tube related operating parameters, the resulting operational stability parameters of the hydrodynamic plain bearing may include one or more of the following: the eccentricity of the dynamic pressure sliding bearing during operation, the rigidity coefficient and the damping coefficient of a fluid layer between the mandrel and the shaft sleeve during the operation of the dynamic pressure sliding bearing, and the like. The eccentricity ratio may be a ratio of a distance between a geometric center of the mandrel and a geometric center of the sleeve to a difference between a radius of the mandrel and a radius of the bearing hole when the hydrodynamic sliding bearing operates. The stiffness coefficient of the fluid layer during the operation of the hydrodynamic plain bearing indicates how easily the lubricating film formed by the fluid medium of the fluid layer is elastically deformed during the operation of the hydrodynamic plain bearing. The damping coefficient of the fluid layer during the operation of the hydrodynamic plain bearing indicates the damping amount of the lubricating film formed by the fluid medium of the fluid layer during the operation of the hydrodynamic plain bearing.

In some embodiments, the operating stability of the hydrodynamic plain bearing can be obtained by processing the X-ray tube related operating parameters through an operating stability prediction model. The stability estimation model may be a model reflecting the relationship between variables such as a mapping relationship, a functional relationship, etc., between input variables such as X-ray tube-related operating parameters and output operational stability.

In some embodiments, the stability prediction model may be obtained by establishing a calculation model or mapping relationship between the input variables and the output parameters.

In some embodiments, the stability prediction model may include a neural network model, such as NN, CNN, RNN, and the like. And inputting the relevant working parameters of the X-ray tube into the stability estimation model, and outputting the model to obtain the corresponding operation stability.

In some embodiments, when the stability prediction model includes a neural network model, the required stability prediction model may be obtained through training. In some embodiments, a training sample may be input into an initial model, and model parameters of the initial model may be iteratively updated based on a loss function to obtain an operation stability prediction model, where the training sample may include an X-ray tube-related operation parameter sample and an operation stability label of a dynamic pressure sliding bearing corresponding to the operation parameter sample.

In some embodiments, deriving the operational stability of the hydrodynamic plain bearing based on X-ray tube related operating parameters may include: based on the working voltage, the working current and the working time of the X-ray tube, the heat transferred to the dynamic pressure sliding bearing can be determined, and further the fluid temperature and the spatial structure deformation of a fluid layer can be determined; the bearing capacity of the hydrodynamic plain bearing is determined, and the operational stability of the hydrodynamic plain bearing can be determined based on the fluid temperature of the fluid layer, the spatial structural deformation of the fluid layer, the rotational speed of the rotating member of the hydrodynamic plain bearing, and the bearing capacity of the hydrodynamic plain bearing. For more details on the method for determining the operation stability of the hydrodynamic plain bearing, reference may be made to fig. 5 and the related description thereof, which are not repeated herein.

And 330, performing operation control on the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the operation stability.

In some embodiments, step 330 may be performed by the operation control module 230.

In some embodiments, the operation control module 230 may determine whether the operation stability satisfies a predetermined condition, and obtain a determination result. Whether the operation stability meets the preset condition can reflect whether the operation of the dynamic pressure sliding bearing in the X-ray tube or the X-ray tube is stable or meets the requirement.

In some embodiments, the preset condition may be that the operation is stable, or that the operation stability (e.g., score) is not less than a threshold, or the like.

In some embodiments, the preset condition may also be a value range of each operation stability parameter. For example: the value range of the eccentricity ratio of the dynamic pressure sliding bearing in operation, the value range of the rigidity coefficient of the fluid layer between the mandrel and the shaft sleeve and the value range of the damping coefficient of the fluid layer between the mandrel and the shaft sleeve in operation of the dynamic pressure sliding bearing. The value range may include, for example, a value greater than a threshold, a value smaller than a threshold, a value within a value range, a value not within a value range, and the like.

In some embodiments, the preset condition may also be a value range of a parameter obtained by further processing the operation stability parameter. For example, the multiple operation stability parameters may be normalized or subjected to further processing such as weighted summation to obtain further parameters, and the preset condition may be a value range of the obtained further parameters.

In some embodiments, determining whether the operational stability satisfies the preset condition may be determining whether one or more of the operational stability parameters satisfy the preset condition.

In some embodiments, the determination result of the operation stability may include that the operation stability satisfies a preset condition or does not satisfy the preset condition. For example, if the eccentricity is greater than the threshold, the determination result indicates that the operation stability parameter does not satisfy the preset condition, and if the stiffness coefficient and the damping coefficient of the fluid layer between the mandrel and the sleeve are both greater than the threshold during the operation of the dynamic pressure sliding bearing, the determination result indicates that the operation stability parameter does not satisfy the preset condition.

In some embodiments, if the operation stability parameter meets the preset condition as a result of the determination of the operation stability, it may be determined that the operation stability of the dynamic pressure sliding bearing meets the requirement; and if the judgment result is that the operation stability parameter does not meet the preset condition, judging that the operation stability of the dynamic pressure sliding bearing does not meet the requirement.

In some embodiments, the determining the result may further include comparing the determined operation stability parameter with a preset value range to obtain a comparison result. In some embodiments, the comparison results may include a score. For example, the closer the operating stability parameter is to the preset value range, the higher the score value is. In some embodiments, multiple scores may be obtained for multiple operational stability parameters. In some embodiments, a composite score may be derived based on multiple scores. The composite score may be a weighted average, a weighted sum, etc. of the plurality of scores. The preset condition may be that the value of the score or the total score is within a set value range, for example, the score or the total score is greater than a threshold. If the score or the comprehensive score meets the preset condition, the operation stability can be judged to meet the preset condition, namely the operation stability meets the requirement.

In some embodiments, the operation stability and the determination result of whether the operation stability satisfies the preset condition may be fed back to a user, a control device of the X-ray tube, or the like. In some embodiments, the user can be fed back through the user interface, and the user can intuitively and clearly know the operation stability condition estimated according to the current working parameters.

In some embodiments, the operation control module 230 may cause the X-ray tube and the dynamic pressure sliding bearing in the X-ray tube to operate based on the operating parameters if the obtained operation stability determination result is that the operation stability of the dynamic pressure sliding bearing meets the requirement.

In some embodiments, if the obtained operation stability determination result is that the operation stability of the dynamic pressure sliding bearing does not meet the requirement, the operation control module 240 may adjust at least one parameter of the X-ray tube related operating parameters, so that the operation stability determined based on the adjusted operating parameter meets the preset condition. When the dynamic pressure sliding bearing in the X-ray tube and the X-ray tube is based on the adjusted preset working parameters, the operation stability can meet the requirement.

In some embodiments, at least one of the operating parameters may also be selected by the user for adjustment based on the feedback operating stability, and the operation control module 240 may receive the adjusted operating parameter.

For more details on the method for controlling the operation of the dynamic pressure sliding bearing in the X-ray tube and the X-ray tube based on the determination result, reference may be made to fig. 6 and the related description thereof, which are not repeated herein.

It should be noted that the above description related to the flow 300 is only for illustration and explanation, and does not limit the applicable scope of the present application. Various modifications and changes to flow 300 will be apparent to those skilled in the art in light of this disclosure. However, such modifications and variations are intended to be within the scope of the present application.

Fig. 5 is an exemplary flow chart of a method of deriving operational stability of a hydrodynamic plain bearing, according to some embodiments herein.

In some embodiments, one or more of the operations in flow 500 may be implemented by processing device 140. For example, the process 500 may be stored in the storage device 150 in the form of instructions and executed and/or invoked by the processing device 140.

In some embodiments, one or more operations in flow 500 may be performed by stability estimation module 220. Flow 500 provides an exemplary method described in 320 that achieves operational stability for a hydrodynamic plain bearing.

As shown in fig. 5, the flow 500 may include the following operations.

Based on the operating voltage, operating current and operating time of the X-ray tube, the fluid temperature and spatial structural deformation of the fluid layer are determined, step 510.

In some embodiments, the amount of heat transferred to the hydrodynamic plain bearing may be determined based on the operating voltage, operating current, and operating time of the X-ray tube; the temperature of the dynamic pressure sliding bearing is changed by the heat transferred to the dynamic pressure sliding bearing, so that the temperature distribution of the dynamic pressure sliding bearing is obtained, and the fluid temperature of the fluid layer and the spatial structure deformation of the fluid layer can be determined. The fluid temperature refers to the temperature of the fluid medium in the fluid layer when the bearing is in operation. The fluid temperature may be an average temperature of the fluid temperature at different locations in the fluid layer, or a maximum value of the fluid temperature at different locations in the fluid layer, or a temperature distribution at each location.

Spatial structure deformation refers to deformation of the corresponding cavity structure of the fluid layer. Due to the temperature change of the dynamic pressure sliding bearing, the mandrel and the shaft sleeve which form the cavity structure corresponding to the fluid layer can be deformed, such as thermal expansion, and further the deformation of the formed cavity structure, namely the shape change of the inner wall of the cavity is caused. For example, at least one of the inner walls of the spindle and the sleeve expands 2mm in the cavity direction in the radial direction corresponding to the angle of 30 degrees with the center of the bearing as the center). In some embodiments, the spatial structure deformation may include a thermal expansion coefficient of the mandrel and sleeve corresponding to the temperature of the fluid layer (e.g., 0.15), or a spatial structure deformation amount of the fluid layer (e.g., 2mm expansion of the inner wall). In some embodiments, the spatial structure deformation amount may include deformation amounts of a plurality of positions of the cavity structure corresponding to the fluid layer (for example, positions of the inner wall corresponding to radial positions of a certain central angle with the center of the bearing as a center), or deformation amounts of a plurality of portions of the cavity structure corresponding to the fluid layer (for example, portions of the inner wall corresponding to a certain central angle range (for example, 0 to 30 degrees) with the center of the bearing as a center).

In some embodiments, a mapping relationship between the operating voltage, the operating current, and the operating time of the X-ray tube and the fluid temperature and the spatial structure deformation of the fluid layer (for example, a one-to-one correspondence relationship between the operating power and the operating time and the fluid temperature and the spatial structure deformation of the fluid layer), a calculation model (for example, a thermodynamic calculation model such as a heat transfer science and a thermal expansion, a neural network model, and the like) can be established. And obtaining the fluid temperature and the spatial structure deformation of the corresponding fluid layer through a mapping relation or a calculation model based on the working power and the working time of the dynamic pressure sliding bearing.

In some embodiments, the mapping relation and the calculation model can be corrected based on the monitoring data of the dynamic pressure sliding bearing in actual operation (for example, the measurement data of the fluid temperature of the dynamic pressure sliding bearing in actual operation), so that the mapping relation and the calculation model are more accurate.

By way of example only, during operation of the X-ray tube, the cathode emits an electron beam that bombards an anode target mounted on a hydrodynamic plain bearing, depending on the operating voltage, operating current, and operating time of the X-ray tube, and the energy is converted into heat that is transferred to the hydrodynamic plain bearing. The X-ray tube is operated at the set operating voltage, operating current and operating time, the energy generated can be determined, the amount of heat transferred to the dynamic pressure sliding bearing can be further determined, and a computational model can be further established based on the heat transfer chemistry (for example, a thermal simulation computational model is established by setting the material properties, boundary conditions and other dynamic pressure sliding bearing parameters of the dynamic pressure sliding bearing through finite element software). And solving the calculation model by a finite element calculation method to obtain the fluid temperature of the fluid layer, and establishing the calculation model based on the relationship between the temperature and the thermal expansion to obtain the spatial structure deformation of the fluid layer corresponding to the fluid temperature.

And step 520, determining the operation stability of the dynamic pressure sliding bearing based on the fluid temperature of the fluid layer, the spatial structure deformation of the fluid layer, the rotating speed of a rotating part of the dynamic pressure sliding bearing and the bearing capacity of the dynamic pressure sliding bearing.

In some embodiments, the bearing capacity of the hydrodynamic plain bearing may be determined. The bearing capacity of the hydrodynamic plain bearing refers to the load which needs to be borne when the hydrodynamic plain bearing operates.

In some embodiments, the bearing force of the hydrodynamic plain bearing may be the gravitational force of the hydrodynamic plain bearing. For example, the X-ray tube scans at a fixed position, and the bearing force of the hydrodynamic sliding bearing is the gravity of the hydrodynamic sliding bearing.

In some embodiments, the X-ray tube is mounted on a rotatable device, rotation of the rotatable device increasing the centrifugal force generated by rotation of the rotatable device for the load of the hydrodynamic plain bearing. The bearing force of the hydrodynamic plain bearing may be a resultant force of a centrifugal force generated by rotation of the rotary device and a gravity of the hydrodynamic plain bearing. The centrifugal force generated by the rotation of the rotating device may be determined based on the device rotation speed.

The fluid temperature of the fluid layer, the spatial structural deformation of the fluid layer, the rotating speed of the rotating member of the dynamic pressure sliding bearing and the bearing capacity of the dynamic pressure sliding bearing can all affect the stability of the operation of the dynamic pressure sliding bearing. Based on the aspects, the influence of heat generated by a device during the operation of the dynamic pressure sliding bearing on the operation stability of the dynamic pressure sliding bearing, and the influence of the spatial structure deformation of a fluid layer, the rotating speed of the bearing and the bearing capacity of the bearing caused by the heat generated by the operation of the device on the operation stability of the dynamic pressure sliding bearing can be comprehensively considered so as to determine the operation stability for evaluating the operation stability.

In some embodiments, a mapping relation between the fluid temperature of the fluid layer, the spatial structural deformation of the fluid layer, the rotation speed of the dynamic pressure sliding bearing, the bearing capacity and the operation stability of the dynamic pressure sliding bearing, such as the eccentricity of the operation of the dynamic pressure sliding bearing, the rigidity coefficient and the damping coefficient of the fluid layer between the mandrel and the shaft sleeve when the dynamic pressure sliding bearing operates, and a calculation model (such as a fluid calculation theory like Reynolds equation, a neural network model, etc.) can be established. Based on the fluid temperature of the fluid layer, the spatial structure deformation of the fluid layer, the rotating speed of the rotating part of the dynamic pressure sliding bearing and the bearing capacity of the dynamic pressure sliding bearing, the operation stability can be obtained through a mapping relation or a calculation model.

In some embodiments, the fluid thickness distribution and the fluid viscosity of the fluid layer may also be determined based on the fluid temperature of the fluid layer and the spatial structural deformation of the fluid layer. And determining the running stability based on the thickness distribution of the fluid, the viscosity of the fluid, the rotating speed of the dynamic pressure sliding bearing and the bearing capacity of the dynamic pressure sliding bearing.

The fluid thickness distribution of the fluid layer refers to the fluid thickness distribution of the fluid layer when the bearing operates, and may include the fluid thickness at each position of the fluid layer (e.g., each angular position centered on the center of the bearing). The fluid thickness distribution of the fluid layer may be determined based on the spatial structural deformation of the fluid layer.

The fluid viscosity is related to the temperature of the fluid medium. The fluid viscosity of the fluid layer may be determined based on the fluid temperature. For example, for liquid metals, the higher the temperature, the lower the viscosity of the fluid.

In some embodiments, a mapping relationship between the fluid temperature of the fluid layer, the spatial structure deformation of the fluid layer, and the fluid thickness distribution and the fluid viscosity of the fluid layer (e.g., a one-to-one correspondence relationship between the fluid temperature of the fluid layer, the spatial structure deformation of the fluid layer, and the fluid thickness distribution and the fluid viscosity of the fluid layer), a calculation model (e.g., a calculation model based on a relationship between the viscosity and the temperature change of the fluid, a calculation model based on a correspondence relationship between the spatial structure deformation and the fluid thickness distribution, a neural network model, etc.) may be established. Based on the fluid temperature of the fluid layer and the spatial structure deformation of the fluid layer, the fluid thickness distribution and the fluid viscosity of the fluid layer can be obtained through a mapping relation or a calculation model.

In some embodiments, the fluid thickness distribution and the fluid viscosity of the fluid layer can be determined through the fluid temperature and the spatial structure deformation of the fluid layer which are determined based on the working heat of the X-ray tube, and the effect of the heat on the bearing operation and the effect of the fluid motion on the bearing operation are combined to determine the operation stability of the dynamic pressure sliding bearing, so that the accurate operation stability can be determined.

It should be noted that the above description related to the flow 500 is only for illustration and explanation, and does not limit the applicable scope of the present application. Various modifications and changes to flow 300 will be apparent to those skilled in the art in light of this disclosure. However, such modifications and variations are intended to be within the scope of the present application.

Fig. 6 is an exemplary flow chart of a method for operation control of a dynamic pressure plain bearing in an X-ray tube or an X-ray tube based on the operational stability, according to some embodiments herein.

In some embodiments, one or more of the operations in flow 600 may be implemented by processing device 140. For example, the flow 600 may be stored in the storage device 150 in the form of instructions and executed and/or invoked by the processing device 140.

In some embodiments, one or more of the operations in flow 600 may be performed by the run control module 240. Flow 600 provides an exemplary method for implementing 330 the described operational control of a dynamic pressure plain bearing in an X-ray tube or an X-ray tube based on the operational stability.

As shown in fig. 6, the flow 600 may include the following operations.

And step 610, if the operation stability is judged not to meet the preset condition, adjusting the working parameters, and thus adjusting the operation stability to meet the preset condition.

In some embodiments, one or more of the X-ray tube related operating parameters, such as one or more of an operating voltage of the X-ray tube, an operating current of the X-ray tube, an operating time of the X-ray tube, a rotational speed of a rotating member of the hydrodynamic plain bearing, and a device rotational speed of a device in which the X-ray tube is located, may be adjusted such that an operational stability of the hydrodynamic plain bearing determined based on the adjusted operating parameters now satisfies a preset condition.

In some embodiments, one or all of the operating voltage, operating current and operating time of the X-ray tube may be adjusted to adjust the fluid temperature and the dimensional structural deformation to change, thereby adjusting the determined operational stability (e.g., eccentricity of the hydrodynamic plain bearing operation, stiffness coefficient of the fluid layer between the core and the sleeve, damping coefficient of the fluid layer between the core and the sleeve) to satisfy the preset conditions.

In some embodiments, the rotational speed of the rotating member of the dynamic pressure sliding bearing may be adjusted so as to adjust the determined operational stability (e.g., eccentricity of the operation of the dynamic pressure sliding bearing, stiffness coefficient of the fluid layer between the shaft core and the sleeve, damping coefficient of the fluid layer between the shaft core and the sleeve) to satisfy the preset condition.

In some embodiments, the rotational speed of the device in which the X-ray tube is located (for example, the gantry in which the X-ray tube is located) may also be adjusted, or the rotational speed of the rotating member of the dynamic pressure sliding bearing and the rotational speed of the device in which the X-ray tube is located may be adjusted at the same time, so that the determined operational stability (such as the eccentricity of the operation of the dynamic pressure sliding bearing, the stiffness coefficient of the fluid layer between the shaft core and the sleeve, and the damping coefficient of the fluid layer between the shaft core and the sleeve) is adjusted to satisfy the preset condition.

In some embodiments, all of the aforementioned operating parameters may be adjusted to adjust the determined operational stability (e.g., eccentricity of the hydrodynamic plain bearing operation, stiffness coefficient of the fluid layer between the core and the sleeve, damping coefficient of the fluid layer between the core and the sleeve) to meet the preset conditions.

For example only, for an X-ray tube, if the eccentricity determined based on the associated X-ray tube operating parameters is greater than a threshold value, it may be determined that the operational stability does not satisfy the predetermined condition. One or both of the operating voltage and the operating current of the X-ray tube and the rotational speed of the rotating member of the hydrodynamic plain bearing may be adjusted so that the determined eccentricity satisfies the requirement of being less than or equal to the threshold value.

And step 620, performing operation control on the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the adjusted working parameters.

By adjusting the relevant working parameters of the X-ray tube, the operation stability determined based on the adjusted working parameters can meet the preset conditions, and the X-ray tube or a dynamic pressure sliding bearing in the X-ray tube, which operates based on the adjusted working parameters, can meet the operation requirements.

As an example, adjusting the operating voltage and operating current of the X-ray tube may adjust the operating power of the X-ray tube to control the operation of the dynamic pressure sliding bearing in the X-ray tube or X-ray tube.

It should be noted that the above description related to the flow 600 is only for illustration and explanation, and does not limit the applicable scope of the present application. Various modifications and changes to flow 600 may occur to those skilled in the art, given the benefit of this disclosure. However, such modifications and variations are intended to be within the scope of the present application.

Embodiments of the present disclosure also provide an apparatus including a processor for executing the operation control method of the dynamic pressure sliding bearing-based rotary anode X-ray tube. The method may include: acquiring relevant working parameters of the X-ray tube; the working parameters comprise: at least one of the rotation speed of the rotating component of the dynamic pressure sliding bearing in the X-ray tube, the working current of the X-ray tube or the working voltage of the X-ray tube; determining the operation stability of the dynamic pressure sliding bearing based on the working parameters; and performing operation control on the X-ray tube or the dynamic pressure sliding bearing in the X-ray tube based on the operation stability.

The operation control method and system of the rotary anode X-ray tube based on the dynamic pressure sliding bearing in the embodiment of the specification may bring beneficial effects including but not limited to: (1) determining an operation stability parameter of a dynamic pressure sliding bearing through relevant working parameters of an X-ray tube so as to realize the operation stability of the dynamic pressure sliding bearing corresponding to the operation of the X-ray tube accurately, and performing operation control on the dynamic pressure sliding bearing in the X-ray tube or the X-ray tube by judging whether the operation stability meets a preset condition, for example, adjusting one or more parameters in the working parameters so as to effectively improve the operation effect and a protection device of the dynamic pressure sliding bearing in the X-ray tube and the X-ray tube; (2) the method has the advantages that the fluid temperature and the spatial structure deformation of the fluid layer determined based on the working heat of the X-ray tube are mapped to the fluid thickness distribution and the fluid viscosity of the fluid layer, so that the influence of the heat on the operation of the bearing is combined with the influence of the fluid motion on the operation of the bearing, the operation stability of the dynamic pressure sliding bearing is determined, the determined operation stability of the dynamic pressure sliding bearing is more accurate, and the operation control of the dynamic pressure sliding bearing in the X-ray tube or the X-ray tube is more accurate. It is to be noted that different embodiments may produce different advantages, and in different embodiments, any one or combination of the above advantages may be produced, or any other advantages may be obtained.

Having thus described the basic concept, it will be apparent to those skilled in the art from this detailed disclosure that the foregoing detailed disclosure is to be presented by way of example only, and not by way of limitation. Various alterations, improvements, and modifications may occur and are intended to those skilled in the art, though not expressly stated herein. Such alterations, improvements, and modifications are intended to be suggested by this disclosure, and are intended to be within the spirit and scope of the exemplary embodiments of the disclosure.

In addition, specific terminology has been used to describe embodiments of the disclosure. For example, the terms "one embodiment," "an embodiment," and/or "some embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined as suitable in one or more embodiments of the disclosure.

Moreover, those skilled in the art will appreciate that aspects of the present disclosure may be illustrated and described herein in any of several patentable categories or contexts, including any new and useful processes, machines, manufacture, or composition of matter, or any new and useful modifications thereof. Furthermore, aspects of the present disclosure may take the form of a computer program product embodied in one or more computer-readable media having computer-readable program code embodied thereon.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein (e.g., in baseband or as part of a carrier wave). Such a propagated signal may take any of a variety of forms, including electromagnetic, optical, and the like, or any suitable combination thereof. A computer readable signal medium may be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for execution by, or in connection with, an instruction execution system, apparatus, or device. Program code embodied on a computer readable signal medium may be transmitted using any appropriate medium, including wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for aspects of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Scala, Smalltalk, Eiffel, JADE, Emerald, C + +, C #, VB.NET, Python, and so forth, conventional procedural programming languages, such as the "C" programming language, visual basic, Fortran2003, Perl, COBOL 2002, PHP, ABAP, dynamic programming languages, such as Python, Ruby, and Groovy, or other programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (e.g., through the internet using an internet service provider) or in a cloud computing environment or provided as a service, such as software as a service (SaaS).

Furthermore, the recited order of processing elements or sequences, or using numbers, letters, or other designations therefore is not intended to limit the claimed processes and methods to any order except as may be specified in the claims. While the foregoing disclosure discusses, through various examples, what are presently considered to be various useful embodiments of the disclosure, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover modifications and equivalent arrangements that are within the spirit and scope of the disclosed embodiments. For example, while the implementation of the various components described above may be implemented in a hardware device, it may also be implemented as a software-only solution — e.g., installed on an existing server or mobile device.

Similarly, it should be appreciated that in the foregoing description of embodiments of the disclosure, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the various inventive embodiments. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed subject matter requires more features than are expressly recited in each claim. Rather, inventive embodiments lie in less than all features of a single foregoing disclosed embodiment.

In some embodiments, numbers expressing quantities or attributes used to describe and claim certain embodiments of the application are to be understood as being modified in some instances by the terms "about", "approximately" or "substantially". For example, "about," "approximately," or "substantially" may indicate a variation of ± 20% of the described value, unless otherwise stated. Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, these numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the application are approximations, the numerical values set forth in the specific examples are reported as precisely as practically possible.

Each patent, patent application publication, and other material (such as articles, books, descriptions, publications, documents, articles, and the like) cited herein is incorporated by reference in its entirety for all purposes, except to the extent that any prosecution history associated with the above-described material, material in the above-described material that is inconsistent or contrary to this document, or material in the above-described material which might have a limited effect on the full scope of claims now or later associated with this document. By way of example, the description, definition, and/or use of terms in this document shall control if there is any inconsistency or conflict between the description, definition, and/or use of terms associated with any of the incorporated materials and the description, definition, and/or use of terms associated with this document.

Finally, it should be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the present application. Other modifications that may be employed may fall within the scope of the application. Thus, by way of example, and not limitation, alternative configurations of embodiments of the present application may be utilized in accordance with the teachings herein. Accordingly, embodiments of the present application are not limited to that precisely as shown and described.