阅读说明：本技术 一种适用于浮式风机主动式实时混合模型试验的试验设备 (Test equipment suitable for floating fan active real-time mixed model test ) 是由 樊天慧 马远 卢洪超 陈超核 严心宽 周诗博 杜昱宏 曾祥斌 杨跃富 于 2021-07-30 设计创作，主要内容包括：一种适用于浮式风机主动式实时混合模型试验的试验设备,包括漂浮模拟装置、风机装置、风机控制模块,漂浮模拟装置包括底座和模拟浮台,在底座和模拟浮台之间连接有若干长度角度调节装置,长度角度调节装置的一端与底座铰接,长度角度调节装置的另一端为驱动端并与模拟浮台铰接,长度角度调节装置通过驱动端可调节自身长度；风机装置设置于模拟浮台,风机控制模块与所述风机装置电性连接。以多个长度角度调节装置作为底座和模拟浮台之间的自由度调节结构,实现浮式基础运动追踪的执行机构,风机控制模块可以实现对风机叶片的桨距角、转速控制,使得风机模型在机舱质量满足要求的前提下控制桨距角和转速,从而开展弗洛德数相似条件下的随机风试验。(A test device suitable for a floating fan active real-time mixed model test comprises a floating simulation device, a fan device and a fan control module, wherein the floating simulation device comprises a base and a simulation floating platform, a plurality of length angle adjusting devices are connected between the base and the simulation floating platform, one end of each length angle adjusting device is hinged with the base, the other end of each length angle adjusting device is a driving end and is hinged with the simulation floating platform, and the length of each length angle adjusting device can be adjusted through the driving end; the fan device is arranged on the simulation floating platform, and the fan control module is electrically connected with the fan device. The multiple length angle adjusting devices are used as a freedom degree adjusting structure between the base and the simulation floating platform to realize an executing mechanism for floating foundation motion tracking, and the fan control module can realize control over the pitch angle and the rotating speed of the fan blade, so that the fan model controls the pitch angle and the rotating speed on the premise that the quality of the cabin meets the requirements, and random wind tests under similar conditions of Froude numbers are carried out.)

1. A test device suitable for floating fan active real-time hybrid model test, its characterized in that includes:

the system comprises a floating simulation device, a fan device and a fan control module;

the floating simulation device comprises a base and a simulation floating platform, a plurality of length angle adjusting devices are connected between the base and the simulation floating platform, one end of each length angle adjusting device is hinged with the base, the other end of each length angle adjusting device is a driving end and is hinged with the simulation floating platform, and the length of each length angle adjusting device can be adjusted through the driving end;

the fan device is arranged on the simulation floating platform, and the fan control module is electrically connected with the fan device.

2. The testing equipment suitable for the floating fan active real-time hybrid model test according to claim 1, wherein the base is of a triangular structure, two length angle adjusting devices are respectively arranged at the pointed ends of the base, the two length angle adjusting devices arranged at the pointed ends of the base and the hinged joint of the simulation floating platform are arranged away from each other, and the two length angle adjusting devices arranged at the pointed ends of the base and the simulation floating platform form a triangular structure.

3. The testing apparatus for the floating fan active real-time hybrid model test as claimed in claim 2, wherein the simulated floating platform is a circular structure.

4. The testing equipment suitable for the floating fan active real-time hybrid model test according to claim 1, wherein the fan device comprises a fan cabin, a speed change gear box is arranged in the fan cabin, and a fan blade is arranged at an output end of the speed change gear box.

5. The testing apparatus for the floating fan active real-time hybrid model test as defined in claim 4, wherein the number of the fan blades is three.

6. The testing equipment suitable for the floating fan active real-time hybrid model test is characterized in that a tower drum connected with the simulation floating platform is arranged on the fan cabin, the tower drum is of a hollow structure, a screw rod piece connected with the speed change gear box is arranged in the tower drum, the other end of the screw rod piece is connected with the fan control module, the wind control module comprises a control battery cell and a driving motor, the control battery cell is electrically connected with the driving motor, and the driving end of the driving motor is connected with the other end of the screw rod piece.

7. The testing equipment suitable for the floating fan active real-time hybrid model test according to claim 1, wherein the length and angle adjusting device comprises a driving cylinder, a piston handle, a connecting sleeve block, a connecting baffle block and an angle adjusting controller; one end of the piston handle is fixed on the driving cylinder, and the other end of the piston handle is connected with the connecting stop block; the connecting stop block is arranged on the connecting sleeve block through the angle adjusting controller.

8. The testing equipment suitable for the floating fan active real-time hybrid model test according to claim 7, wherein the angle adjustment controller comprises an angle adjustment rotating shaft and an angle adjustment limiting stopper; the angle adjusting limiter is rotatably arranged on the connecting sleeve block through an angle adjusting rotating shaft.

9. The testing equipment suitable for the floating fan active real-time hybrid model test of claim 7, wherein a first hinge seat is arranged on the base and is hinged to the driving cylinder, a second hinge seat is arranged on the simulation floating platform and corresponds to the position of the connecting sleeve block, and the second hinge seat is hinged to the driving cylinder.

10. The testing equipment suitable for the floating fan active real-time hybrid model test according to claim 8, wherein the angle adjustment controller further comprises a blocking stopper, and the blocking stopper is arranged in the connecting sleeve and abuts against the angle adjustment stopper within a radius range.

Technical Field

The invention belongs to the technical field of fan test equipment, and particularly relates to test equipment suitable for a floating fan active real-time mixed model test.

Background

At present, floating fan model tests are mainly divided into two types. One type is a physical model test, namely the wind turbine generator, the floating foundation and the anchoring system are reproduced in the form of a physical model, so that the test is performed in a water pool. The experiment is equivalent according to the Froude similarity criterion, as for the aerodynamic load of the fan, the secondary aerodynamic load is usually ignored on the basis of satisfying the Froude similarity, only the main aerodynamic load is simulated, for example, the axial thrust of the impeller at a constant wind speed, and the error is inevitably brought to the experiment. In addition, the wind-generating quality of the traditional ocean engineering water pool is poor, the simulated wind field cannot well reproduce real conditions, and the wind field can influence waves in the water pool, so that the waves deform.

The other type is a real-time mixed model test method, and the pneumatic load numerical simulation is adopted to replace a real wind field and a fan rotor, and the test is carried out in a water pool, so that the contradiction of the similarity criterion of the floating fan test is solved. However, the numerical simulation method has the following disadvantages:

(1) the adopted theories are approximate theories or empirical correction models;

(2) in order to meet the real-time requirement of the test, rapid high-frequency calculation is needed, so that the numerical model is simplified, the blades are regarded as rigid bodies, the number of blade units is reduced as much as possible, and the calculation precision is low;

(3) the generation of a turbulent wind field lacks comprehensive and reliable data, only can refer to relevant specifications and experiences, and has uncertainty;

(4) the adopted calculation method has strict requirements on the time step length, and the matching difficulty with the physical model is higher in the test.

Although the existing floating fan real-time mixing model test method solves the contradiction that the Froude number and the Reynolds number cannot be similar at the same time in the test to a certain extent, the pneumatic load calculation of the fan blade is a complex nonlinear problem considering fluid viscosity, the adopted numerical calculation method is simplified and assumed, and more empirical coefficients exist in the algorithm. One of the most important roles of physical model tests is to find complex nonlinear phenomena through tests. The fluid viscosity of the pneumatic load plays a main role, the nonlinearity is stronger compared with the hydrodynamic load, and the authenticity and the reliability of the physical model test are undoubtedly reduced by replacing the pneumatic load in the physical model test with numerical calculation.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a test device suitable for a floating fan active real-time hybrid model test, and aims to solve the problems in the prior art.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a test apparatus suitable for floating fan active real-time hybrid model testing, comprising:

a floating simulation device, a fan device and a fan control module,

the floating simulation device comprises a base and a simulation floating platform, a plurality of length angle adjusting devices are connected between the base and the simulation floating platform, one end of each length angle adjusting device is hinged with the base, the other end of each length angle adjusting device is a driving end and is hinged with the simulation floating platform, and the length of each length angle adjusting device can be adjusted through the driving end;

the fan device is arranged on the simulation floating platform, and the fan control module is electrically connected with the fan device.

Preferably, the base is a triangular structure, two length angle adjusting devices are respectively arranged at the tip end of the base, the two length angle adjusting devices at the tip end of the base and the hinged part of the simulation floating platform are arranged away from each other, and the two length angle adjusting devices at the tip end of the base and the simulation floating platform form a triangular structure.

Preferably, the simulation floating platform is of a circular structure.

Preferably, the fan device comprises a fan cabin, a speed change gear box is arranged in the fan cabin, and the output end of the speed change gear box is provided with fan blades.

Preferably, the number of the fan blades is three.

Preferably, be equipped with on the fan cabin with the tower section of thick bamboo that the simulation floating platform is connected, a tower section of thick bamboo is hollow structure be equipped with in a tower section of thick bamboo with the screw rod piece that change speed gear box connects, the other end of screw rod piece with fan control module connects, wind control module is including control electricity core and driving motor, control electricity core with driving motor electric connection, driving motor's drive end with the other end of screw rod piece is connected.

Preferably, the length and angle adjusting device comprises a driving cylinder, a piston handle, a connecting sleeve block, a connecting stop block and an angle adjusting controller; one end of the piston handle is fixed on the driving cylinder, and the other end of the piston handle is connected with the connecting stop block; the connecting stop block is arranged on the connecting sleeve block through the angle adjusting controller.

Preferably, the angle adjusting controller comprises an angle adjusting rotating shaft and an angle adjusting limiter; the angle adjusting limiter is rotatably arranged on the connecting sleeve block through an angle adjusting rotating shaft.

Preferably, be equipped with first articulated seat on the base, first articulated seat with it is articulated to drive actuating cylinder, on the simulation floating platform and corresponding the position of connecting the nested piece is equipped with the articulated seat of second, the articulated seat of second with it is articulated to drive actuating cylinder.

Preferably, the angle adjustment controller further comprises a blocking stopper, and the blocking stopper is arranged in the connecting sleeve and abuts against the angle adjustment limiting stopper within the radius range.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides test equipment suitable for floating type fan active real-time mixed model tests, which takes a plurality of length angle adjusting devices as a freedom degree adjusting structure between a base and a simulation floating platform to realize an executing mechanism for floating type foundation motion tracking, and a fan control module can realize control on the pitch angle and the rotating speed of a fan blade, so that the fan model can control the pitch angle and the rotating speed on the premise that the cabin quality meets requirements, thereby carrying out random wind tests under similar conditions of Flory numbers.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are 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 creative efforts.

FIG. 1 is a view of the present invention;

FIG. 2 is a structural view of the length angle adjusting means of the present invention;

FIG. 3 is a schematic diagram of a fan test condition of the present invention;

description of reference numerals:

1-base, 2-simulation floating platform, 3-length angle adjusting device, 4-fan cabin, 5-fan blade, 6-tower, 7-screw rod, 8-fan control module, 9-driving cylinder, 10-piston handle, 11-connecting sleeve block, 12-connecting stop block, 13-angle adjusting rotating shaft, 14-angle adjusting limiting stopper, 15-first hinged seat, 16-second hinged seat and 17-clamping stop block.

Detailed Description

In order to make the technical problems solved, technical solutions adopted, and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention are described in further detail below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 3, an embodiment of the present invention provides a testing apparatus suitable for a floating fan active real-time hybrid model test, including:

a floating simulation device, a fan control module 8,

the floating simulation device comprises a base 1 and a simulation floating platform 2, a plurality of length angle adjusting devices 3 are connected between the base 1 and the simulation floating platform 2, one end of each length angle adjusting device 3 is hinged with the base 1, the other end of each length angle adjusting device 3 is a driving end and is hinged with the simulation floating platform 2, and the length of each length angle adjusting device 3 can be adjusted through the driving end;

the fan device set up in simulation floating platform 2, fan control module 8 with fan device electric connection.

Specifically, base 1 is the triangle-shaped structure base 1's apex angle end respectively is equipped with two length angle adjusting device 3, locates two length angle adjusting device 3 of base 1's apex angle end with the articulated department of simulation floating platform 2 keeps away from the setting each other, and locates two length angle adjusting device 3 of base 1's apex angle end with simulation floating platform 2 forms the triangle-shaped structure.

Specifically, the simulation floating platform 2 is of a circular structure.

Specifically, the fan device comprises a fan cabin 4, a speed change gear box is arranged in the fan cabin 4, and fan blades 5 are arranged at the output end of the speed change gear box.

Specifically, the number of the fan blades 5 is three.

Specifically, be equipped with on the fan cabin 4 with a tower section of thick bamboo 6 that simulation floating platform 2 is connected, a tower section of thick bamboo 6 is hollow structure be equipped with in a tower section of thick bamboo 6 with screw rod piece 7 that change speed gear case is connected, the other end of screw rod piece 7 with fan control module 8 is connected, wind control module is including control electricity core and driving motor, control electricity core with driving motor electric connection, driving motor's drive end with the other end of screw rod piece 7 is connected.

Specifically, the length and angle adjusting device 3 comprises a driving cylinder 9, a piston handle 10, a connecting sleeve block 11, a connecting stop block 12 and an angle adjusting controller; one end of the piston handle 10 is fixed on the driving cylinder 9, and the other end is connected with the connecting stop block 12; the connecting stop block 12 is arranged on the connecting sleeve block 11 through an angle adjusting controller.

Specifically, the angle adjusting controller comprises an angle adjusting rotating shaft 13 and an angle adjusting limiter 14; the angle adjusting limiter 14 is rotatably arranged on the connecting sleeve block 11 through an angle adjusting rotating shaft 13.

Specifically, be equipped with first articulated seat 15 on the base 1, first articulated seat 15 with it is articulated to drive actuating cylinder 9, just correspond on the simulation floating platform 2 the position of connecting the nested piece 11 is equipped with the articulated seat 16 of second, the articulated seat 16 of second with it is articulated to drive actuating cylinder 9.

Specifically, the angle adjustment controller further comprises a blocking stopper 17, and the blocking stopper 17 is arranged in the connecting sleeve block 11 and abuts against the angle adjustment limiting stopper 14 within a radius range.

By adopting the structure, the piston handle 10 is connected with the connecting stop block 12, the connecting stop block 12 can be quickly controlled to rotate or stretch through the piston handle 10, the angle can be conveniently adjusted, and the movable angle of the piston handle 10 can be adjusted through the arrangement of the angle adjusting controller; through the setting of screens dog 17, can fix a position the angle that angle modulation stopper 14 rotated on angle modulation pivot 13 for angle modulation stopper 14 can rotate and fix a position in certain scope, thereby is right the degree of freedom of simulation floating platform is adjusted.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a test device suitable for a floating fan active real-time mixed model test, aiming at the novel floating fan real-time mixed model test developed in a wind tunnel, the wind load is simulated by a fan cabin 4, a tower 6 physical model and a wind field provided by the wind tunnel, structures such as a floating foundation, an anchoring system and the like are replaced by numerical simulation and realize freedom degree adjustment through six length angle adjusting devices 3, the motion of the floating foundation is loaded to the cross section of a tower base of a fan, so as to obtain the integral coupling motion response of the floating fan, the six length angle adjusting devices 3 are used as the freedom degree adjusting structure between a base 1 and a simulation floating platform 2 to realize an executing mechanism of the motion tracking of the floating foundation, meanwhile, a fan control module 8 can realize the control of the pitch angle and the rotating speed of a fan blade 5, so that the pitch angle and the rotating speed of the fan model can be controlled on the premise that the cabin quality meets the requirements, thereby carrying out random wind test under similar conditions of the Froude number.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship merely for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, configuration, and operation in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.