阅读说明：本技术 轨道列车异常振动信号的处理系统 (Processing system for abnormal vibration signals of rail train ) 是由 崔涛 刘学刚 王淇 姚莉军 石俊杰 霍文彪 于 2019-11-27 设计创作，主要内容包括：本发明适用于轨道交通技术领域,提供了一种轨道列车异常振动信号的处理系统,该系统包括：至少一个异常振动监控装置,设置在车辆发生异常振动的至少一个部位上,用于放大车辆异常振动,并采集放大的异常振动信号；将异常振动信号发送给列车制动控制单元；列车制动控制单元,用于获取异常振动信号,并对异常振动信号进行处理。本申请通过在车辆发生异常振动的不同部位分别设置至少一个异常振动监控装置,当车辆发生异常振动时可以扩大异常振动信号,异常振动监控装置可以采集异常振动信号并将采集到的异常振动信号发送给列车制动控制单元进行进一步处理,从而可以对轨道列车异常振动感知与分析提供全面的监测、诊断、预警。(The invention is suitable for the technical field of rail transit, and provides a system for processing abnormal vibration signals of a rail train, which comprises: the abnormal vibration monitoring device is arranged on at least one part of the vehicle with abnormal vibration and is used for amplifying the abnormal vibration of the vehicle and collecting an amplified abnormal vibration signal; sending the abnormal vibration signal to a train brake control unit; and the train brake control unit is used for acquiring the abnormal vibration signal and processing the abnormal vibration signal. This application can enlarge unusual vibration signal when the vehicle takes place unusual vibration through setting up at least one unusual vibration monitoring device respectively in the different positions that the vehicle took place unusual vibration, unusual vibration monitoring device can gather unusual vibration signal and send the unusual vibration signal of gathering for train brake control unit and carry out further processing to can provide comprehensive monitoring, diagnosis, early warning to track train unusual vibration perception and analysis.)

1. A processing system of rail train abnormal vibration signal, characterized by includes: at least one abnormal vibration monitoring device and a train brake control unit;

the abnormal vibration monitoring device is arranged on at least one part of the vehicle with abnormal vibration and is used for amplifying the abnormal vibration of the vehicle and collecting an amplified abnormal vibration signal; sending the abnormal vibration signal to a train brake control unit;

and the train brake control unit is used for acquiring the abnormal vibration signal and processing the abnormal vibration signal.

2. The system for processing an abnormal vibration signal of a rail train according to claim 1, wherein each abnormal vibration monitoring means comprises: the vibration sensor comprises a spring, a vibrator, mounting basic equipment and a vibration sensor;

the installation foundation equipment is fixedly connected to the vehicle body;

one end of the spring is connected with the installation basic equipment, and the other end of the spring is connected with the vibrator;

the vibration sensor is arranged on the vibrator, the direction of sensing vibration of the vibration sensor is consistent with the motion direction of the vibrator, and the vibration sensor is used for collecting motion signals of the vibrator.

3. The system for processing abnormal vibration signals of a railway train as claimed in claim 2, wherein each of the abnormal vibration monitoring devices further comprises: a guide sleeve;

the guide sleeve is fixedly connected with the installation basic equipment, and the arrangement direction of the guide sleeve is consistent with the movement direction of the vibrator.

4. The system for processing abnormal vibration signals of a railway train as claimed in claim 2, wherein each of the abnormal vibration monitoring devices further comprises: a limit impact sensing plate;

the limit value collision sensing plate is arranged on the motion direction of the vibrator and is fixedly connected to the installation basic equipment at a position where the vibrator is a preset distance when the vibrator is static.

5. The system for processing abnormal vibration signals of a railway train as claimed in claim 2, wherein each of the abnormal vibration monitoring devices further comprises: two limit impact sensing plates;

predetermine the position on any limit value collision induction board and set up a round hole, the limit value collision induction board that sets up the round hole sets up on the direction of motion of oscillator and be located the spring with on the first predetermined position between the oscillator, pass in the round hole the spring, another limit value collision induction board sets up on the direction of motion of oscillator just distance when the oscillator is static the oscillator is the position department of distance is predetermineeing to the second, and two limit value collision induction boards all concreties and is in on the installation basic equipment.

6. The system for processing an abnormal vibration signal of a rail train according to claim 3, wherein each of the abnormal vibration monitoring devices further comprises: a limit impact sensing plate;

the limit value collision induction plate is arranged in the guide sleeve and is in the position where the oscillator is a preset distance when the oscillator is static, and the limit value collision induction plate is fixedly connected to the installation basic equipment.

7. The system for processing an abnormal vibration signal of a rail train according to claim 3, wherein each of the abnormal vibration monitoring devices further comprises: two limit impact sensing plates;

predetermine the position on any limit value collision tablet and set up a round hole, the limit value collision tablet that sets up the round hole sets up in the guide sleeve on the direction of motion of oscillator and be located the spring with on the first predetermined position between the oscillator, pass in the round hole the spring, another limit value collision tablet sets up in the guide sleeve on the direction of motion of oscillator just distance when the oscillator is static the oscillator is the position department of distance is predetermine to the second, and two limit value collision tablets all concreties in the guide sleeve.

8. The system for processing abnormal vibration signals of a railway train as claimed in claim 2, wherein the vibration sensor comprises: an acceleration sensor or a displacement sensor.

9. The system for processing an abnormal vibration signal of a rail train according to any one of claims 1 to 8,

the train brake control unit is used for acquiring and storing the abnormal vibration signal;

detecting according to the acquired abnormal vibration signal, and controlling driving when the abnormal vibration signal is smaller than a first preset threshold value;

when the abnormal vibration signal is greater than or equal to a first preset threshold and smaller than a second preset threshold, early warning is carried out, and driving control is carried out;

when the abnormal vibration signal is greater than or equal to a second preset threshold value, alarming and controlling the vehicle running;

the values of a first preset threshold and a second preset threshold which are arranged at different parts of the vehicle with abnormal vibration are different;

the abnormal vibration monitoring devices arranged at different positions of the vehicle where abnormal vibration occurs have different spring stiffness and different vibrator mass.

10. The system for processing the abnormal vibration signal of the rail train according to any one of claims 4 to 7, wherein when the vibrator impacts a limit value collision sensing plate, the vibration sensor outputs alarm information, and the train brake control unit directly gives an alarm after receiving the alarm information and performs driving control;

or alarm equipment is arranged on the limit value collision sensing plate, and when the oscillator collides with the limit value collision sensing plate, an alarm is given.

Technical Field

The invention belongs to the technical field of rail transit, and particularly relates to a processing system for abnormal vibration signals of a rail train.

Background

For rail vehicles, the wheels and their running rails are not ideally smooth, and excitation of the wheel-rail interface is always present. Thus, vehicle vibrations are always present. When the vehicle vibration level exceeds a certain standard limit value, the vehicle vibration state deteriorates, and it is considered that abnormal vibration occurs in the vehicle. The influence factor of the abnormal vibration is not single, and various random influence factors exist. The abnormal vibration affects the vehicle running performance and may even affect the operational order of the railway system.

At present, when abnormal vibration occurs to a vehicle, analysis and processing can be carried out according to the stability of the vehicle and the stability of a vehicle body. The system adopts the transverse acceleration of the end part of a bogie frame for early warning and certain driving control aiming at the early warning of the stability of the vehicle, but the monitoring, diagnosing and early warning objects of the system are bogies, the monitoring physical quantity is the transverse acceleration, and the system has a filtering frequency band which is suitable for the self requirement. The vehicle body stability index test generally adopts an acceleration sensor to perform vehicle body response test and then performs stability analysis. However, the mapping relation between the stability index and the abnormal vibration does not have good correspondence, the abnormal vibration of the vehicle has various forms, meanwhile, random influence factors are more, and the current testing technology cannot well identify the abnormal vibration type.

Disclosure of Invention

In view of this, the embodiment of the present invention provides a processing system for an abnormal vibration signal of a rail train, so as to solve the problem that a comprehensive monitoring, diagnosing and early warning system for sensing and analyzing the abnormal vibration of the rail train is not provided in the prior art.

The first aspect of the embodiment of the present invention provides a processing system for an abnormal vibration signal of a rail train, including: at least one abnormal vibration monitoring device and a train brake control unit;

the abnormal vibration monitoring device is arranged on at least one part of the vehicle with abnormal vibration and is used for amplifying the abnormal vibration of the vehicle and collecting an amplified abnormal vibration signal; sending the abnormal vibration signal to a train brake control unit;

and the train brake control unit is used for acquiring the abnormal vibration signal and processing the abnormal vibration signal.

In one embodiment, each abnormal vibration monitoring apparatus includes: the vibration sensor comprises a spring, a vibrator, mounting basic equipment and a vibration sensor;

the installation foundation equipment is fixedly connected to the vehicle body;

one end of the spring is connected with the installation basic equipment, and the other end of the spring is connected with the vibrator;

the vibration sensor is arranged on the vibrator, the direction of sensing vibration of the vibration sensor is consistent with the motion direction of the vibrator, and the vibration sensor is used for collecting motion signals of the vibrator.

In one embodiment, each of the abnormal vibration monitoring apparatuses further includes: a guide sleeve;

the guide sleeve is fixedly connected with the installation basic equipment, and the arrangement direction of the guide sleeve is consistent with the movement direction of the vibrator.

In one embodiment, each of the abnormal vibration monitoring apparatuses further includes: a limit impact sensing plate;

the limit value collision sensing plate is arranged on the motion direction of the vibrator and is fixedly connected to the installation basic equipment at a position where the vibrator is a preset distance when the vibrator is static.

In one embodiment, each of the abnormal vibration monitoring apparatuses further includes: two limit impact sensing plates;

predetermine the position on any limit value collision induction board and set up a round hole, the limit value collision induction board that sets up the round hole sets up on the direction of motion of oscillator and be located the spring with on the first predetermined position between the oscillator, pass in the round hole the spring, another limit value collision induction board sets up on the direction of motion of oscillator just distance when the oscillator is static the oscillator is the position department of distance is predetermineeing to the second, and two limit value collision induction boards all concreties and is in on the installation basic equipment.

In one embodiment, each of the abnormal vibration monitoring apparatuses further includes: a limit impact sensing plate;

the limit value collision induction plate is arranged in the guide sleeve and is in the position where the oscillator is a preset distance when the oscillator is static, and the limit value collision induction plate is fixedly connected to the installation basic equipment.

In one embodiment, each of the abnormal vibration monitoring apparatuses further includes: two limit impact sensing plates;

predetermine the position on any limit value collision tablet and set up a round hole, the limit value collision tablet that sets up the round hole sets up in the guide sleeve on the direction of motion of oscillator and be located the spring with on the first predetermined position between the oscillator, pass in the round hole the spring, another limit value collision tablet sets up in the guide sleeve on the direction of motion of oscillator just distance when the oscillator is static the oscillator is the position department of distance is predetermine to the second, and two limit value collision tablets all concreties in the guide sleeve.

In one embodiment, the vibration sensor includes: an acceleration sensor or a displacement sensor.

In one embodiment, the train brake control unit is used for acquiring and storing the abnormal vibration signal;

detecting according to the acquired abnormal vibration signal, and controlling driving when the abnormal vibration signal is smaller than a first preset threshold value;

when the abnormal vibration signal is greater than or equal to a first preset threshold and smaller than a second preset threshold, early warning is carried out, and driving control is carried out;

when the abnormal vibration signal is greater than or equal to a second preset threshold value, alarming and controlling the vehicle running;

the values of a first preset threshold and a second preset threshold which are arranged at different parts of the vehicle with abnormal vibration are different;

the abnormal vibration monitoring devices arranged at different positions of the vehicle where abnormal vibration occurs have different spring stiffness and different vibrator mass.

In one embodiment, when the vibrator impacts a limit value collision sensing plate, the vibration sensor outputs alarm information, and the train brake control unit directly alarms after receiving the alarm information and controls the train running;

or alarm equipment is arranged on the limit value collision sensing plate, and when the oscillator collides with the limit value collision sensing plate, an alarm is given.

Compared with the prior art, the embodiment of the invention has the following beneficial effects: the abnormal vibration monitoring device can collect the abnormal vibration signals and send the collected abnormal vibration signals to the train brake control unit for further processing, so that comprehensive monitoring, diagnosis and early warning can be provided for the abnormal vibration perception and analysis of the rail train.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic diagram of a processing system for an abnormal vibration signal of a rail train according to an embodiment of the present invention;

fig. 2 is a schematic view of an abnormal vibration monitoring apparatus according to an embodiment of the present invention;

fig. 3 is a schematic view of an abnormal vibration monitoring apparatus (provided with a guide sleeve) according to an embodiment of the present invention;

FIG. 4 is a schematic view of a threshold impact plate (no guide sleeve) according to an embodiment of the present invention;

fig. 5 is a schematic view of the arrangement of the limit collision sensing plate (the arrangement guide sleeve) according to the embodiment of the present invention.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

In order to explain the technical means of the present invention, the following description will be given by way of specific examples.

As shown in fig. 1, a system for processing an abnormal vibration signal of a rail train may include: at least one abnormal vibration monitoring device 101 and a train brake control unit 102;

the at least one abnormal vibration monitoring device 101 is arranged on at least one part of the vehicle where the abnormal vibration occurs, and is used for amplifying the abnormal vibration of the vehicle and collecting an amplified abnormal vibration signal; sending the abnormal vibration signal to a train brake control unit;

the train brake control unit 102 is configured to acquire the abnormal vibration signal and process the abnormal vibration signal.

According to the processing system for the abnormal vibration signals of the rail train, the at least one abnormal vibration monitoring device is arranged at different positions of the abnormal vibration of the train, so that the abnormal vibration signals can be enlarged when the abnormal vibration of the train occurs, and the abnormal vibration monitoring devices can collect the abnormal vibration signals and send the collected abnormal vibration signals to the train brake control unit for further processing, so that comprehensive monitoring, diagnosis and early warning can be provided for sensing and analyzing the abnormal vibration of the rail train.

Alternatively, as shown in fig. 2, each abnormal vibration monitoring apparatus 101 may include: spring 201, vibrator 202, mounting base 203, and vibration sensor 204.

The installation foundation equipment 203 is fixedly connected to the vehicle body;

one end of the spring 201 is connected with the installation basic device 203, and the other end is connected with the vibrator 202;

the vibration sensor 204 is disposed on the vibrator 202, a direction of sensing vibration of the vibration sensor 204 is consistent with a motion direction of the vibrator 202, and the vibration sensor 204 is configured to collect a motion signal of the vibrator 202. For example, the vibration sensor may be provided on any of two sides of the vibrator.

As shown in fig. 2, the number of the mounting base devices 203 may be at least one, and the number of the mounting base devices 203 may be increased or decreased according to the number of the mounting base devices 203 provided at different positions of the vehicle body.

Optionally, the abnormal vibration of the vehicle body may include abnormal vibration forms such as excessive lateral swing of the vehicle body, low-frequency shaking of the vehicle, vehicle body shaking, and insufficient stability of the bogie. In the following, we will describe in detail by taking the example of the vehicle body lateral swing being too large, and the other abnormal vibration forms are similar to the abnormal vibration form of the vehicle body lateral swing being too large in handling manner and principle of installing the abnormal vibration monitoring device.

When the vehicle body of the vehicle has large transverse swing, the vehicle body has rich response frequency under the broadband excitation of an actual circuit, and is not beneficial to transverse swing identification. The scheme is adopted for identification, firstly, the abnormal vibration form of the transverse swing of the vehicle body is clear, and a spring vibrator system is designed according to the characteristic of the transverse swing of the vehicle body. Optionally, the abnormal vibration monitoring devices arranged at different positions of the vehicle where the abnormal vibration occurs have different spring stiffness and different vibrator mass. The spring vibrator is not unique in composition form in different abnormal vibration forms, and the principle is that the vibrator vibration form is consistent with the abnormal vibration of the vehicle.

As shown in fig. 2, the mounting base 203 is fixed to the vehicle body, and a position where the lateral vibration is most significant and other interfering vibration signals are less may be selected, so that the abnormal vibration signal is more significant. A lateral vibration sensor 204 is disposed on the vibrator 202 for sensing the vibration response of the vibrator 202. According to the resonance principle, the transverse vibration frequency of the vibrator 202 is equal to or approximately equal to the transverse swinging frequency of the vehicle body through the combined design of the vibrator + the mass of the sensor and the spring stiffness. When the vehicle body has large yaw, the vibrator 202 generates transverse vibration, the vibrator vibration is amplified, and abnormal vibration information is highlighted. Through testing, the strength relation between the transverse vibration of the vibrator 202 and the transverse swinging of the vehicle body is determined. Through oscillator 202 vibration identification, can evaluate the automobile body lateral swing through the train braking control unit to the unusual vibration signal that receives vibration sensor monitoring, carry out early warning and warning, even control driving speed or stop.

Optionally, as shown in fig. 3, each abnormal vibration monitoring apparatus 101 further includes: a guide sleeve 205.

The guide sleeve 205 is fixedly connected with the installation foundation device 203, and the installation direction of the guide sleeve 205 is consistent with the movement direction of the vibrator 202. As shown in fig. 3, the vibrator 202 and the guide sleeve 205 have only 1 degree of freedom of lateral vibration therebetween, and the damping between the two is small enough so that the vibrator 202 generates lateral motion in the guide sleeve 205 when the vehicle body swings laterally.

Optionally, the shape of the guide sleeve 205 may be a hollow cylinder, a hollow cuboid, or the like, and the vibrator may be accommodated in the cavity, and the movement smoothness of the vibrator is ensured.

Optionally, the vibration sensor 204 may include: an acceleration sensor or a displacement sensor. When the train body swings transversely, the vibrator 202 moves transversely in the guide sleeve 205, the vibration sensor 204 detects the vibration, and after an acceleration value or a displacement value is collected, the monitored acceleration value or displacement value is sent to the train brake control unit 102. The train brake control unit 102 is used for acquiring and storing the abnormal vibration signal; detecting according to the acquired abnormal vibration signal, and controlling driving when the abnormal vibration signal is smaller than a first preset threshold value; when the abnormal vibration signal is greater than or equal to a first preset threshold and smaller than a second preset threshold, early warning is carried out, and driving control is carried out; and when the abnormal vibration signal is greater than or equal to a second preset threshold value, alarming and controlling the vehicle.

Through the setting of different preset threshold values, different driving controls and warnings can be carried out on the train, and abnormal vibration is avoided.

The vehicle control may include different levels of speed limit or parking.

Optionally, the first preset threshold and the second preset threshold set at different positions of the vehicle where the abnormal vibration occurs are different in value.

Alternatively, the vibration sensor 204 and the train brake control unit 102 may be wirelessly connected.

Optionally, the abnormal vibration signal stored in the train brake control unit 102 may be used for long-term online tracking of the abnormal vibration state of the vehicle, acquiring an evolution law of the abnormal vibration state, and providing support data for predicting the abnormal vibration of the vehicle. In addition, the abnormal vibration of the vehicle and the section of the generated line can be used for evaluating the line quality and providing a basis for the abnormal handling and repair process of the train.

In order to give a quick warning when a strong abnormal vibration occurs in the vehicle, a limit value collision sensing plate may be provided. Each abnormal vibration monitoring apparatus 101 may further include: the limit collision sensing plate 2061. Such as the limit impact sensing plate 2061 shown in fig. 4.

When the guide sleeve 205 is not provided in the abnormal vibration monitoring apparatus 101, the limit collision sensing plate 206 is provided in the moving direction of the vibrator 202 and is fixed to the installation base 203 at a position away from the vibrator 202 by a predetermined distance when the vibrator 202 is stationary.

Alternatively, the preset distance may be set empirically or based on statistical analysis of historical data.

Optionally, each abnormal vibration monitoring apparatus 101 may further include: two limit impact sensing plates; a limit impact sensing plate 2061 and a limit impact sensing plate 2062 as shown in fig. 4.

Preset position on any limit value collision tablet sets up a round hole, as shown in fig. 4, preset position on limit value collision tablet 2062 sets up a round hole, and limit value collision tablet 2062 that sets up the round hole sets up on the direction of motion of oscillator 202 and be located spring 201 with on the first preset position between oscillator 202, pass in the round hole the spring, another limit value collision tablet 2061 sets up on the direction of motion of oscillator 202 just oscillator 202 is distance when static oscillator 202 is the position department that distance was preset to the second for oscillator 202, and two limit value collision tablets all concreties and is in on the installation basic unit 203.

Optionally, each abnormal vibration monitoring apparatus 101 may further include: the limit collision sensing plate 2063. Such as the limit impact plate 2063 shown in fig. 5.

When the guide sleeve 205 is provided in the abnormal vibration monitoring apparatus 101, the limit collision sensing plate 2063 is provided in the guide sleeve 205 at a position which is a predetermined distance from the vibrator 202 when the vibrator 202 is at rest, and the limit collision sensing plate 2063 is fixed to the installation base 203. Alternatively, the preset distance may be set empirically or based on statistical analysis of historical data.

Optionally, each abnormal vibration monitoring apparatus further includes: two limit impact sensing plates; a limit impact sensing plate 2063 and a limit impact sensing plate 2064 as shown in fig. 5.

Preset position sets up a round hole on any limit value collision tablet, for example preset position sets up a round hole on limit value collision tablet 2064, and limit value collision tablet 2064 that sets up the round hole sets up in the guide sleeve 205 on the direction of motion of oscillator 202 and be located spring 201 with on the first preset position between oscillator 202, pass in the round hole spring 201, another limit value collision tablet 2063 sets up in the guide sleeve 205 on the direction of motion of oscillator 202 and the oscillator 202 is distance when static oscillator 202 is the position department that the distance was preset to the second to oscillator 202, and two limit value collision tablets all concretize in the guide sleeve.

Optionally, when the automobile body takes place great vibration, when oscillator 202 collided the limit value collision induction board, vibration sensor 204 can detect acceleration and reduce immediately, can set up output alarm information this moment, train braking control unit receives directly report to the police behind the alarm information to go on traffic control.

Or, alarm equipment can be directly arranged on the set limit value collision sensing plate, when the oscillator collides with the limit value collision sensing plate, an alarm is given, and after a driver hears the alarm, the driving control can be immediately carried out.

According to the processing system for the abnormal vibration signals of the rail train, the at least one abnormal vibration monitoring device is arranged at different positions of the abnormal vibration of the train, so that the abnormal vibration signals can be enlarged when the abnormal vibration of the train occurs, and the abnormal vibration monitoring devices can collect the abnormal vibration signals and send the collected abnormal vibration signals to the train brake control unit for further processing, so that comprehensive monitoring, diagnosis and early warning can be provided for sensing and analyzing the abnormal vibration of the rail train. In addition, when the vibration is large, the alarm can be given immediately by setting a limit value to collide with the sensing plate.

Optionally, the low-frequency shaking form of the vehicle mainly takes a superposition form of rolling and shaking of the vehicle body. If the lateral vibration of a certain position of the vehicle body can be characterized by vehicle shaking, the scheme that the vehicle body swings transversely too much can be adopted. If the transverse swinging of the vehicle body is too large, the low-frequency swinging of the vehicle body is not good enough, and spring vibrators in other vibration modes can be designed. Or the spring oscillator is consistent with the low-frequency shaking vibration mode of the vehicle through the combined design of a plurality of springs and oscillators. The low-frequency shaking frequency of the vehicle is mainly concentrated on 1Hz-3Hz, and key vibration modes of the vibrator have similar frequency through setting the mass of the vibrator and the rigidity of the spring. The device can be arranged at key parts of the vehicle body.

Common vehicle body vibration is mainly caused by resonance of a steering frame snaking motion and a vehicle body structure mode or a vehicle body torsion mode, and the frequency of the common vehicle body vibration is generally 8Hz-9 Hz. The vertical vibration of the vehicle body bottom plate has strong correlation with the vehicle body shaking. Therefore, the spring vibrator similar to the scheme that the transverse swing of the vehicle body is overlarge can be adopted to form the spring vibrator, and the spring vibrator is arranged on the bottom plate of the vehicle body and is vertically arranged for related application.

When the stability of the bogie is insufficient, certain snaking motion occurs, and the frequency of the snaking motion is mainly distributed between 3Hz and 9 Hz. There is a strong correlation between lateral frame end movement and inadequate truck stability (i.e., hunting). A transverse spring-vibrator system may be arranged at the bogie end. The parameters of the spring oscillator are designed according to the snaking motion characteristics of the bogie, and the principle of the spring oscillator and the transverse swing of the bogie are too large, so that the design is not repeated.

Aiming at possible abnormal vibration of the vehicle, different spring vibrator systems can be arranged at key positions of the vehicle at the same time, so that monitoring and judgment of the abnormal vibration and necessary early warning, alarming and vehicle control are carried out. The abnormal vibration type, the strength and the like of the vehicle can be judged when the vehicle is abnormal. Besides the application, the processing system for the abnormal vibration signals of the rail train can also be applied to other aspects of identifying key vibration components.

In the aspect of an application mode, the processing system of the abnormal vibration signal of the railway train can also be used as a portable test application for testing and diagnosing temporary abnormal vibration; the system can also be used as a vehicle distribution system for state monitoring and even necessary early warning, alarming and vehicle control.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.