CN111257020A - Test device and test method for simulating rail irregularity of rail train - Google Patents
Test device and test method for simulating rail irregularity of rail train Download PDFInfo
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- CN111257020A CN111257020A CN202010067199.5A CN202010067199A CN111257020A CN 111257020 A CN111257020 A CN 111257020A CN 202010067199 A CN202010067199 A CN 202010067199A CN 111257020 A CN111257020 A CN 111257020A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
- G01M17/10—Suspensions, axles or wheels
Abstract
The invention provides a test device and a test method for simulating rail irregularity of a rail train, wherein the device comprises the following components: the single suspension frame system and the computing equipment connected with the single suspension frame system; the single suspension frame system is used for simulating the working condition of a rail train track when the rail train runs and measuring the suspension electromagnet data and the guide electromagnet data of the rail train track; and the computing equipment is used for processing the data of the suspension electromagnet and the data of the guiding electromagnet so as to simulate the irregularity of the rail train. By the test device and the test method for simulating the rail train rail irregularity, provided by the embodiment of the invention, the vibration test of the rail train single suspension system can be completed without building a hydraulic vibration system, the cost is reduced, and the building period of the test system is shortened.
Description
Technical Field
The invention relates to the technical field, in particular to a test device and a test method for simulating rail irregularity of a rail train.
Background
At present, when a vehicle suspension system such as a single suspension of a rail train is tested, in order to excite rail vibration and analyze the response of the single suspension system and the like under the excitation, a hydraulic vibration system is generally required to be built to simulate the condition of rail train rail irregularity.
However, the hydraulic vibration system has the defects of high cost, long construction period and difficulty in simulating high-frequency vibration.
Disclosure of Invention
In order to solve the above problems, an object of the embodiments of the present invention is to provide a test apparatus and a test method for simulating rail train rail irregularity.
In a first aspect, an embodiment of the present invention provides a test apparatus for simulating rail irregularity of a rail train, including: the single suspension frame system and the computing equipment connected with the single suspension frame system;
the single suspension frame system is used for simulating the working condition of a rail train track when the rail train runs and measuring the suspension electromagnet data and the guide electromagnet data of the rail train track;
and the computing equipment is used for processing the data of the suspension electromagnet and the data of the guiding electromagnet so as to simulate the irregularity of the rail train.
In a second aspect, an embodiment of the present invention further provides a test method for simulating rail irregularity of a rail train, including:
acquiring suspension electromagnet data and guiding electromagnet data and receiving an excitation signal sent by the upper computer;
and respectively superposing excitation signals on the suspension electromagnet data and the guiding electromagnet data, thereby simulating the irregularity of the rail train.
In a third aspect, an embodiment of the present invention further provides a test apparatus for simulating rail irregularity of a rail train, including:
the acquisition module is used for acquiring the data of the suspension electromagnet and the data of the guide electromagnet and receiving an excitation signal sent by the upper computer;
and the processing module is used for respectively superposing excitation signals on the suspension electromagnet data and the guiding electromagnet data so as to simulate the irregularity of the rail train.
In the solution provided by the first aspect of the embodiment of the present invention, the single suspension system and the test system composed of the computing device connected to the single suspension system are used to simulate the irregularity of the rail train, and compared with the situation that the hydraulic vibration system needs to be built to simulate the irregularity of the rail train in the related art, the vibration test of the rail train suspension system can be completed without building the hydraulic vibration system, so that the cost is reduced and the construction period of the test system is shortened; moreover, only a high-frequency gap fluctuation signal needs to be injected into the upper computer, so that a test for simulating high-frequency vibration can be realized, and the operation is simple and convenient.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a single suspension system applied to a test device for simulating rail irregularity of a rail train according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram illustrating a test device for simulating rail train rail irregularity provided in embodiment 1 of the present invention;
fig. 3 shows a schematic structural diagram of a four-way aviation plug in a test device for simulating rail train rail irregularity provided in embodiment 1 of the present invention;
fig. 4 is a schematic diagram illustrating data transmission by a four-way aviation plug in a test device for simulating rail train rail irregularity provided in embodiment 1 of the present invention;
fig. 5 shows a schematic structural diagram of a U-shaped plug connector in the test apparatus for simulating rail irregularity of a rail train provided in embodiment 1 of the present invention;
fig. 6 is a schematic diagram illustrating a test apparatus for simulating rail train rail irregularity according to embodiment 1 of the present invention, in which excitation signals are superimposed on data of a levitation electromagnet;
fig. 7 is a schematic diagram illustrating a test apparatus for simulating rail train rail irregularity according to embodiment 1 of the present invention, in which excitation signals are superimposed on data of a guidance electromagnet;
fig. 8 is a flowchart illustrating a test method for simulating rail train rail irregularity according to embodiment 2 of the present invention;
fig. 9 shows a schematic structural diagram of a test apparatus for simulating rail train rail irregularity provided in embodiment 3 of the present invention.
Detailed Description
At present, when a vehicle suspension system such as a single suspension is tested, in order to excite track vibration and analyze the response of the single suspension under the excitation, a hydraulic vibration system which is expensive to construct is generally required to be constructed, but the purchase cost of the hydraulic system is high, the construction period is long, high-frequency vibration is difficult to simulate, and the construction cost is suddenly increased along with the improvement of the simulated vibration frequency.
In addition, the communication fault simulation between the guide controllers, the redundant processing function when the difference between the measurement signals of two sensors of the same controller is overlarge, the working conditions such as the communication fault of the sensors and the like are difficult to simulate.
Therefore, the scheme adopts a mode of injecting digital analog signals into the transmission path of the sensor, a complex and expensive hydraulic vibration system does not need to be purchased, the test cost is greatly reduced, and the construction period of the test system is shortened and becomes controllable.
In addition, an upper computer is utilized to apply an excitation signal to the single suspension frame dynamics and control model, and the obtained response is recorded; and then the signals are applied to a transmission path of each sensor through a simulator, responses such as gaps, currents and the like measured by the single suspension frame (namely a single suspension frame system) are transmitted back to an upper computer, the deviation of the model and an actual system is fed back to the model, and after multiple iterations, the error is converged to zero, so that the correction of system dynamics and a suspension control model and the structural parameter optimization of the single suspension frame and the control system can be realized.
Because signal excitation simulation equipment is loaded between each sensor and the controller and between each sensor and the adjacent guide controller, the working conditions of sensor faults, adjacent controller communication faults, inconsistent communication data of two sensors of the same controller and the like can be simulated, and the redundant function of the suspension guide control system is verified.
Based on this, the embodiment provides a test device and a test method for simulating rail train track irregularity, and the irregularity of the rail train track is simulated by using a test system composed of a single suspension system and computing equipment connected with the single suspension system, so that a vibration test of a rail train suspension system can be completed without constructing a hydraulic vibration system, the cost is reduced, and the construction period of the test system is shortened.
In the embodiment of the present application, the rail vehicle may be a magnetic levitation train.
Example 1
Referring to the structure of the single suspension system shown in fig. 1 and the structure of the test device for simulating rail train rail irregularity shown in fig. 2, the test device comprises: the single suspension system 200 and the computing device (not shown) connected to the single suspension system.
The single suspension system is provided with two guide electromagnets 102 in total, and the train is controlled to run along the center of the track by measuring the deviation between the gap between the tracks and the gap of the sensor at the opposite side; the total number of the suspension electromagnets 112 is two, and the suspension electromagnets measure the gap between the suspension electromagnets and the track to realize the suspension with constant gap. Each levitation or guidance controller has two sensors to measure clearance, acceleration, etc. data.
As shown in fig. 1, the single suspension system further includes: a suspension 114, a guidance sensor 106 in contact with the guidance electromagnet 102, and a guidance controller 104 connected to the guidance electromagnet 102; a levitation sensor 110 in contact with a levitation electromagnet 112, and a levitation controller 108 coupled to the levitation electromagnet 112.
The steering controller 104 includes: the first guide controller and the second guide controller are adjacently arranged.
The guidance sensor 106, which is a guidance gap sensor, measures a gap value between the guidance electromagnet 102 and the guidance surface.
The gap value between the guide electromagnet 102 and the guide surface may be referred to as a guide gap value, a guide electromagnet gap value, and a guide sensor gap value.
Therefore, the gap value between the guide electromagnet 102 and the guide surface, the guide gap value, the gap value of the guide electromagnet, and the gap value of the guide sensor have the same meaning.
The first guidance controller and the second guidance controller are respectively connected with one guidance electromagnet 102. And each of the guidance electromagnets 102 is in contact with a guidance sensor 106.
The structure and function of the single suspension system are the prior art, and are not described in detail herein.
The single suspension frame system is used for simulating the working condition of a rail train track when the rail train runs and measuring the suspension electromagnet data and the guide electromagnet data of the rail train track;
and the computing equipment is used for processing the data of the suspension electromagnet and the data of the guiding electromagnet so as to simulate the irregularity of the rail train.
In one embodiment, the operating condition of the rail train track when the rail train runs may be an operating condition when the rail train runs on an uneven track.
The guidance electromagnet data includes, but is not limited to: the pilot electromagnet current and the pilot electromagnet gap value, the pilot sensor gap value on the opposite side, and the pilot electromagnet current on the opposite side.
As can be seen from the above description, the first guidance controller, guidance electromagnet data that can be acquired, includes: the acceleration of the guiding electromagnet 102 connected with the first guiding controller and the gap value of the guiding electromagnet 102, and the current of the guiding electromagnet 102 connected with the second guiding controller and the gap value measured by the guiding sensor 106 contacted with the guiding electromagnet 102 connected with the second guiding controller are obtained by the second guiding controller.
The second guidance controller, guidance electromagnet data that can be obtained, includes: the acceleration of the guiding electromagnet 102 connected with the second guiding controller and the gap value of the guiding electromagnet 102, and the gap value measured by the current of the guiding electromagnet 102 connected with the first guiding controller and the guiding sensor 106 contacted with the guiding electromagnet 102 connected with the first guiding controller, which are acquired by the first guiding controller.
The computing device may be any server or computer capable of simulating the irregularity of the rail train in the prior art, which is not described herein any more.
Referring to the experimental apparatus for simulating rail train rail irregularity shown in fig. 2, in one implementation, the computing device includes: an upper computer 202 and a simulator 204.
The simulator 204 is respectively connected with the single suspension frame system 200 and the upper computer 202.
The upper computer 202 is used for generating an excitation signal and sending the generated excitation signal to the simulator 204.
The upper computer 202 is connected with the simulator 204 and is used for generating and outputting excitation signals, operating a simulation model and correcting the model; signals corresponding to working conditions such as simulation line irregularity and sensor faults can be edited according to the test working conditions, and the test device for simulating the rail train rail irregularity is controlled.
High-frequency gap fluctuation signals are injected into the upper computer, so that the upper computer can simulate high-frequency vibration which is difficult to simulate by a hydraulic shock excitation test bed.
By designing the simulator and the upper computer, the single suspension frame test is completed by adopting the idea of digital excitation signals, the cost is reduced, and the realization is convenient.
After the simulator is matched with an upper computer for testing, the testing cost and the construction period of a test bed can be greatly reduced, and the function of a huge hydraulic vibration system can be realized only by adopting simple electronic equipment.
The upper computer 202 is connected with the simulator through a cable and an aviation plug, so that the simulator obtains suspension electromagnet data collected by a suspension sensor or guide electromagnet data collected by a first guide controller, meanwhile, the upper computer sends an excitation signal to the simulator, the simulator respectively superposes the suspension electromagnet data or the guide electromagnet data and the excitation signal in a Digital Signal Processing (DSP) arranged in the simulator, and the superposed suspension electromagnet data is output to the suspension controller through the FPGA and the aviation plug or the guide electromagnet data is output to a second guide controller through the FPGA and the aviation plug; on the other hand, the upper computer directly calls the excitation signal to a dynamics and suspension guidance control model stored in the upper computer for simulation, the difference is made between the response output by the simulation and the response of the suspension frame, the deviation is fed back to the model, the error gradually converges to zero along with the iteration, the model correction is completed, and the optimization of the suspension frame structural parameters and the optimization of the suspension control system can be realized based on the difference.
The simulator is used for acquiring the data of the suspension electromagnet and the data of the guide electromagnet, receiving the excitation signals sent by the upper computer, and superposing the excitation signals on the data of the suspension electromagnet and the data of the guide electromagnet respectively, so that the irregularity of the rail train and the communication fault are simulated.
In order to facilitate connection, the simulator is connected with the single suspension frame system and the upper computer through aviation plugs respectively.
Referring to the structure of the four-way aviation plug shown in fig. 3, the simulator is connected with the single suspension system by the four-way aviation plug 300.
The four-way aviation plug 300 comprises: a first mating end 302, a second mating end 304, a third mating end 306, and a fourth mating end 308.
Referring to fig. 4, which is a schematic diagram of data transmission through a four-way aviation plug, the first plugging end 302 is connected to a suspension sensor or a first guidance controller of the single suspension rack system, and the second plugging end 304 is connected to the simulator, so that suspension electromagnet data measured by the suspension sensor or guidance electromagnet data measured by the first guidance controller is transmitted to the simulator after passing through the first plugging end 302 and the second plugging end 304.
The third plugging end 306 is connected to the simulator, and the fourth plugging end 308 is connected to the suspension controller or the second guidance controller of the single suspension frame system, so that the simulator transmits the suspension electromagnet data after superimposing the excitation signal to the suspension controller through the third plugging end and the fourth plugging end, or the simulator transmits the guidance electromagnet data after superimposing the excitation signal to the second guidance controller through the third plugging end and the fourth plugging end.
The suspension controller can control the electromagnet to vibrate according to the suspension electromagnet data after the excitation signal is superposed after receiving the suspension electromagnet data after the excitation signal is superposed, and simulate the vibration of a single suspension frame when a maglev train runs on an unsmooth track.
And the suspension controller can control the suspension frame to vibrate according to the guidance sensor data after the excitation signal is superposed after receiving the guidance sensor data after the excitation signal is superposed so as to simulate the irregularity of the rail train.
Meanwhile, the upper computer directly calls the excitation signal to a dynamics and suspension guidance control model stored by the upper computer to simulate the suspension frame vibration, the response of simulation output (namely, suspension electromagnet simulation vibration data or guidance electromagnet simulation vibration data) is differentiated from the response of the suspension frame (namely, the suspension electromagnet vibration data or guidance electromagnet vibration data), the deviation is fed back to the dynamics and suspension guidance control model to correct the parameters of the model, and the difference gradually converges to zero along with iteration, so that the model correction is finished.
In a non-test state, in order to ensure the short circuit of the four-way aviation plug, referring to the structure of the U-shaped plug connector shown in fig. 5, the test apparatus for simulating rail train rail irregularity provided by this embodiment further includes: a U-shaped plug 500.
When the testing system is in a non-testing state, the U-shaped plug connector 500 is plugged into the second plugging end 304 and the third plugging end 306 of the four-way aviation plug 300, and the four-way aviation plug is in short connection.
The four-way aviation plug and the U-shaped plug connector are designed, during testing, the four-way aviation plug can intercept transmission signals of the sensor and the guide controller, send the transmission signals to the simulator, and output and send the transmission signals to the controller through the simulator after excitation signals are superposed; when the test is not carried out, the U-shaped plug connector can adopt a corresponding plug, so that the short circuit of a transmission path of communication is ensured.
Referring to the schematic diagram of fig. 6 showing the excitation signal superimposed on the levitation electromagnet data, in order to superimpose the excitation signal on the levitation electromagnet data, specifically, the simulator is configured to acquire levitation electromagnet data and guidance electromagnet data and receive an excitation signal sent by the upper computer, and superimpose the excitation signal on the levitation electromagnet data and the guidance electromagnet data, respectively, so as to simulate the irregularity of the track train, and includes the following steps (1) to (3):
(1) the suspension electromagnet data are obtained and excitation signals delta (t) sent by the upper computer are received, and the suspension electromagnet data comprise: the speed v and the acceleration a of the suspension electromagnet and the suspension gap value s;
(2) respectively superposing the speed v and the acceleration a of the suspension electromagnet and the suspension gap value s by using the excitation signal delta (t);
(3) and sending the superposed speed v + delta v and acceleration a + delta a of the suspension electromagnet and the suspension gap value s + delta s to a suspension controller.
Referring to the schematic diagram of fig. 7, in order to superimpose the excitation signal on the guidance electromagnet data, the simulator is configured to acquire the levitation electromagnet data and the guidance electromagnet data and receive the excitation signal sent by the upper computer, and superimpose the excitation signal on the levitation electromagnet data and the guidance electromagnet data, respectively, so as to simulate the irregularity of the rail train track, and further includes the following steps (1) to (3):
(1) the method includes the steps of obtaining guiding electromagnet data sent by a first guiding controller and receiving an excitation signal delta (t) sent by an upper computer, wherein the guiding electromagnet data include: the current I of the guide electromagnet connected with the first guide controller and the gap value S of the guide electromagnet are obtained;
(2) respectively superposing the current I of the guide electromagnet and the gap value S of the guide electromagnet by using the excitation signal delta (t);
(3) and sending the superposed current I + delta I of the guiding electromagnet connected with the first guiding controller and the superposed gap value S + delta S of the guiding electromagnet to a second guiding controller.
Similar to the above steps (1) to (3), the simulator is configured to acquire levitation electromagnet data and guidance electromagnet data, receive an excitation signal sent by the upper computer, and superimpose the excitation signal on the levitation electromagnet data and the guidance electromagnet data, respectively, so as to simulate irregularity of a rail train track, and may further include the following steps (4) to (6):
(4) the method for acquiring the guiding electromagnet data sent by the second guiding controller and receiving the excitation signal sent by the upper computer comprises the following steps: the current of the guide electromagnet connected with the second guide controller and the gap value of the guide electromagnet;
(5) respectively superposing the current of the guide electromagnet and the gap value of the guide electromagnet by using the excitation signal;
(6) and sending the superposed current of the guiding electromagnet connected with the second guiding controller and the gap value of the guiding electromagnet to the first guiding controller.
The above contents show that the vibration test of the rail train running system is completed without adopting a hydraulic vibration excitation system and on the premise of not constructing a vibration test bed by repelling huge capital, and the mode of injecting analog signals into a transmission path of a sensor is adopted, so that the vibration test is convenient and reliable; the data of the transmission path of the guide controller on the opposite side can be intervened, and communication faults of the sensor and the controller, communication fault simulation of the opposite guide controller and a redundant function of inconsistency of measured data of the two sensors can be verified conveniently.
In summary, according to the test device for simulating the track irregularity of the rail train provided by the embodiment, the irregularity of the track train is simulated by using the test system composed of the single suspension system and the computing device connected with the single suspension system, and compared with the situation that the hydraulic vibration system needs to be built to simulate the irregularity of the track train in the related art, the vibration test of the suspension system of the rail train can be completed without building the hydraulic vibration system, so that the cost is reduced, and the construction period of the test system is shortened; moreover, only a high-frequency gap fluctuation signal needs to be injected into the upper computer, so that a test for simulating high-frequency vibration can be realized, and the operation is simple and convenient.
Example 2
The embodiment provides a test method for simulating rail train rail irregularity, which is used for executing the functions realized by the simulator in the potential function embodiment 1.
Referring to fig. 8, a flow chart of a test method for simulating rail train rail irregularity includes the following specific steps:
and 800, acquiring the data of the suspension electromagnet and the data of the guide electromagnet and receiving an excitation signal sent by the upper computer.
And 802, respectively superposing excitation signals on the suspension electromagnet data and the guiding electromagnet data, so as to simulate the irregularity of the rail train.
The levitation electromagnet data comprising: the speed and acceleration of the levitation electromagnet, and the levitation gap value.
In order to superimpose an excitation signal on levitation electromagnet data, in the step 802, the levitation electromagnet data is superimposed with an excitation signal, so as to simulate the irregularity of the rail train track, and the method comprises the following steps (1) to (2):
(1) respectively superposing the speed and the acceleration of the suspension electromagnet and the suspension gap value by using the excitation signal;
(2) and sending the superposed speed and acceleration of the suspension electromagnet and the suspension gap value to a suspension controller.
The levitation electromagnet data comprising: current and guide gap values of the guide electromagnet;
in order to superimpose an excitation signal on the guidance electromagnet data, in the above step 802, the guidance electromagnet data is superimposed with an excitation signal so as to simulate the irregularity of the rail train track, including the following steps (1) to (2):
(1) respectively superposing the current of the guide electromagnet and a guide gap value by using the excitation signal;
(2) and sending the superposed current of the guiding electromagnet and the guiding gap value to a second guiding controller.
The specific process of the above method is similar to the function realized by the simulator in embodiment 1, and is not described here again.
In summary, in the test method for simulating the track irregularity of the rail train provided by the embodiment, the irregularity of the track train is simulated by using the test system composed of the single suspension system and the computing device connected with the single suspension system, and compared with the situation that the hydraulic vibration system needs to be built to simulate the irregularity of the track train in the related art, the vibration test of the suspension system of the rail train can be completed without building the hydraulic vibration system, so that the cost is reduced and the construction period of the test system is shortened; moreover, only a high-frequency gap fluctuation signal needs to be injected into the upper computer, so that a test for simulating high-frequency vibration can be realized, and the operation is simple and convenient.
Example 3
The embodiment provides a test device for simulating rail train rail irregularity, which is used for executing the test method for simulating rail train rail irregularity provided in the embodiment 2.
Referring to fig. 9, a test device for simulating rail train rail irregularity includes:
an obtaining module 900, configured to obtain data of the levitation electromagnet and data of the guidance electromagnet, and receive an excitation signal sent by the upper computer.
And the processing module 902 is configured to respectively superimpose excitation signals on the data of the levitation electromagnet and the data of the guidance electromagnet, so as to simulate the irregularity of the rail train.
In summary, according to the test device for simulating the track irregularity of the rail train provided by the embodiment, the irregularity of the track train is simulated by using the test system composed of the single suspension system and the computing device connected with the single suspension system, and compared with the situation that the hydraulic vibration system needs to be built to simulate the irregularity of the track train in the related art, the vibration test of the suspension system of the rail train can be completed without building the hydraulic vibration system, so that the cost is reduced, and the construction period of the test system is shortened; moreover, only a high-frequency gap fluctuation signal needs to be injected into the upper computer, so that a test for simulating high-frequency vibration can be realized, and the operation is simple and convenient.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. The utility model provides a test device of simulation rail train track irregularity which characterized in that includes: the single suspension frame system and the computing equipment connected with the single suspension frame system;
the single suspension frame system is used for simulating the working condition of a rail train track when the rail train runs and measuring the suspension electromagnet data and the guide electromagnet data of the rail train track;
and the computing equipment is used for processing the data of the suspension electromagnet and the data of the guiding electromagnet so as to simulate the irregularity of the rail train.
2. The test rig for simulating rail irregularity of a rail train as claimed in claim 1, wherein said computing device comprises: an upper computer and a simulator;
the simulator is respectively connected with the single suspension frame system and the upper computer;
the upper computer is used for generating an excitation signal and sending the generated excitation signal to the simulator;
the simulator is used for acquiring the data of the suspension electromagnet and the data of the guide electromagnet, receiving the excitation signals sent by the upper computer, and superposing the excitation signals on the data of the suspension electromagnet and the data of the guide electromagnet respectively so as to simulate the irregularity of the rail train.
3. The test device for simulating the rail irregularity of the rail train as claimed in claim 1, wherein the simulator is connected with the single suspension frame system and the upper computer through an aviation plug respectively.
4. The test device for simulating rail train rail irregularity according to claim 3, wherein the simulator is connected with the single suspension system by a four-way aviation plug;
the four-way aviation plug comprises: the first plug end, the second plug end, the third plug end and the fourth plug end;
the first plugging end is connected with a suspension sensor or a first guide controller of the single suspension frame system, and the second plugging end is connected with the simulator, so that suspension electromagnet data measured by the suspension sensor or guide electromagnet data measured by the first guide controller are transmitted to the simulator after passing through the first plugging end and the second plugging end;
the third plugging end is connected with the simulator, and the fourth plugging end is connected with the suspension controller or the second guide controller of the single suspension frame system, so that the simulator transmits the suspension electromagnet data superposed with the excitation signal to the suspension controller through the third plugging end and the fourth plugging end, or the simulator transmits the guide electromagnet data superposed with the excitation signal to the second guide controller through the third plugging end and the fourth plugging end.
5. The test device of claim 4, further comprising: a U-shaped plug connector;
and when the test system is in a non-test state, the U-shaped plug connector is used for being plugged on the second plugging end and the third plugging end of the four-way aviation plug, and the four-way aviation plug is in short circuit.
6. The testing device for simulating the track irregularity of the rail train according to claim 4, wherein the simulator is configured to obtain the data of the levitation electromagnet and the data of the guidance electromagnet, receive the excitation signal sent by the upper computer, and superimpose the excitation signal on the data of the levitation electromagnet and the data of the guidance electromagnet respectively, so as to simulate the irregularity of the track train, and the testing device comprises:
the suspension electromagnet data are obtained and excitation signals sent by the upper computer are received, and the suspension electromagnet data comprise: the speed and acceleration of the suspension electromagnet and the value of the suspension gap;
respectively superposing the speed and the acceleration of the suspension electromagnet and the suspension gap value by using the excitation signal;
and sending the superposed speed and acceleration of the suspension electromagnet and the suspension gap value to a suspension controller.
7. The testing device for simulating the track irregularity of the rail train according to claim 4, wherein the simulator is configured to obtain the data of the levitation electromagnet and the data of the guidance electromagnet, receive the excitation signal sent by the upper computer, and superimpose the excitation signal on the data of the levitation electromagnet and the data of the guidance electromagnet respectively, so as to simulate the irregularity of the track train, and further comprising:
the method includes the steps of obtaining guiding electromagnet data sent by a first guiding controller and receiving an excitation signal sent by an upper computer, wherein the guiding electromagnet data include: the current of the guide electromagnet connected with the first guide controller and the gap value of the guide electromagnet;
respectively superposing the current of the guide electromagnet and the gap value of the guide electromagnet by using the excitation signal;
and sending the superposed current of the guiding electromagnet and the gap value of the guiding electromagnet to a second guiding controller.
8. A test method for simulating rail train rail irregularity is characterized by comprising the following steps:
acquiring suspension electromagnet data and guiding electromagnet data and receiving an excitation signal sent by the upper computer;
and respectively superposing excitation signals on the suspension electromagnet data and the guiding electromagnet data, thereby simulating the irregularity of the rail train.
9. The method of claim 8, wherein the levitation electromagnet data comprises: the speed and acceleration of the suspension electromagnet and the value of the suspension gap;
superposing an excitation signal on the suspension electromagnet data so as to simulate the irregularity of the rail train, wherein the method comprises the following steps:
respectively superposing the speed and the acceleration of the suspension electromagnet and the suspension gap value by using the excitation signal;
and sending the superposed speed and acceleration of the suspension electromagnet and the suspension gap value to a suspension controller.
10. The method of claim 8, wherein the levitation electromagnet data comprises: current and guide gap values of the guide electromagnet;
superimposing an excitation signal on the guidance electromagnet data to simulate rail train track irregularity, comprising:
respectively superposing the current of the guide electromagnet and a guide gap value by using the excitation signal;
and sending the superposed current of the guiding electromagnet and the guiding gap value to a second guiding controller.
11. The utility model provides a test device of simulation rail train track irregularity which characterized in that includes:
the acquisition module is used for acquiring the data of the suspension electromagnet and the data of the guide electromagnet and receiving an excitation signal sent by the upper computer;
and the processing module is used for respectively superposing excitation signals on the suspension electromagnet data and the guiding electromagnet data so as to simulate the irregularity of the rail train.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067199.5A CN111257020A (en) | 2020-01-20 | 2020-01-20 | Test device and test method for simulating rail irregularity of rail train |
Applications Claiming Priority (1)
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