A high-speed magnetic levitation guidance control test platform and test method

Abstract

The invention discloses a high-speed magnetic levitation guidance control test platform and an experimental method, comprising: a base, a suspension frame magnetic levitation platform arranged above the base, a gantry loading system arranged above the suspension frame magnetic levitation platform, a vibration table system arranged below the suspension frame magnetic levitation platform, and a decoupling test system arranged on the base; the vibration table system comprises a track beam simulation platform arranged below the suspension frame magnetic levitation platform, a ground simulation platform arranged below the track beam simulation platform, a hydraulic excitation system arranged below the ground simulation platform, and a data acquisition system arranged on the base; the decoupling test system is used for testing the decoupling performance of the suspension frame; the gantry loading system is used for applying vertical and lateral loads to the suspension frame magnetic levitation platform to simulate one or more working conditions of heavy load, overload, eccentric load, impact, and side wind.

Description

Technical Field

[0001] The invention relates to the technical field of high-speed magnetic levitation guidance control test platform production, and in particular to a high-speed magnetic levitation guidance control test platform and a test method. Background Art

[0002] The suspension guidance system is the core subsystem of the high-speed maglev vehicle system. Studying and mastering the design, control and integration technology of the suspension guidance system is the premise and foundation for vehicle system design. Therefore, before the system is installed on the vehicle, its performance needs to be fully studied and technically verified to reduce the risk of vehicle suspension guidance system integration, and also to accumulate rich response strategies for the integrated joint debugging and testing of the vehicle system.

[0003] Therefore, it is necessary to provide a comprehensive experimental platform based on high-speed maglev double suspension frames, which can simulate the following working conditions: different track steel beams, cement beams and turnouts, different loads, the coupling relationship between track irregularities and speed, aerodynamic forces under conditions such as crosswinds and oncoming vehicles. Carry out research on high-speed maglev suspension and guidance control technology. The comprehensive experimental platform is designed around the core technology of suspension guidance, and a series of experiments such as suspension control, guidance control, vehicle-track coupling, variable load impact, and suspension frame decoupling are designed. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides a high-speed magnetic levitation guidance control test platform and a test method.

[0005] The present invention provides a high-speed magnetic levitation suspension guide control test platform, comprising: a base, a suspension frame magnetic levitation platform arranged above the base, a gantry loading system arranged above the suspension frame magnetic levitation platform, a vibration table system arranged below the suspension frame magnetic levitation platform, and a decoupling test system arranged on the base;

[0006] The vibration table system includes a track beam simulation platform arranged below the suspension frame magnetic levitation platform, a ground simulation platform arranged below the track beam simulation platform, a hydraulic excitation system arranged below the ground simulation platform, and a data acquisition system arranged on a base;

[0007] The decoupling test system is used to test the decoupling performance of the suspension frame;

[0008] The gantry loading system is used to apply vertical and lateral loads to the suspension frame magnetic levitation platform to simulate one or more working conditions of heavy load, overload, eccentric load, impact, and crosswind.

[0009] Preferably, the data acquisition system includes one or more of a gap sensor, an acceleration sensor, and an electromagnet temperature sensor, which are used to obtain key data of the suspension frame magnetic levitation platform to provide data support for comprehensive testing.

[0010] Preferably, the decoupling test system comprises: a supporting device arranged below the magnetic levitation platform of the suspension frame, a displacement loading device and a detection sensor arranged on the supporting device.

[0011] Preferably, the gantry loading system comprises two gantries spaced apart on the suspension frame magnetic levitation platform, a vertical loading device and a lateral loading device arranged on the gantries, and an air path system connected to the vertical loading device and the lateral loading device; the vertical loading device moves laterally and vertically along the gantry, performs a loading test on a specific area on the top surface of the suspension frame magnetic levitation platform, and simulates one or more load conditions of full load, heavy load, overload, and eccentric load;

[0012] The side loading device moves longitudinally on the gantry, and performs a loading test on a specific area on the side of the magnetic levitation platform of the suspension frame, so as to simulate the aerodynamic conditions of side wind and / or oncoming vehicles.

[0013] Preferably, a groove is provided on the base, and the hydraulic excitation system is arranged in the groove; the track beam simulation platform is adapted to the suspension frame magnetic levitation platform.

[0014] Preferably, the hydraulic excitation system includes a servo actuator assembly, a hydraulic station and a controller unit, which are used to provide an excitation frequency to the test bench to simulate an uneven track condition.

[0015] A test method for a high-speed magnetic levitation guidance control test comprises using the above-mentioned high-speed magnetic levitation guidance control test platform to perform a suspension frame gap characteristic test, a suspension frame suspension current / voltage characteristic test, a suspension frame magnetic levitation platform bearing capacity test, a suspension frame vertical loading / eccentric load impact resistance test, a variable gap suspension characteristic test, a variable main voltage suspension characteristic test, a suspension frame guide gap characteristic test, a suspension frame guide current / voltage characteristic test, and a guide loading / impact test.

[0016] Preferably, the suspension frame clearance characteristic test comprises the following steps:

[0017] (1) Manually control the rise and fall of the suspension frame while the vehicle is in the landing state;

[0018] (2) Using a gap sensor installed at the lower end of the magnetic levitation platform of the suspension frame to measure the gap during the levitation process, and recording the levitation gap change curve during the levitation process;

[0019] (3) Achieve steady-state suspension while the vehicle remains in the landing state;

[0020] (4) using a gap sensor installed at the lower end of the magnetic levitation platform of the suspension frame to measure the steady-state suspension gap and record the suspension gap change curve under the steady-state suspension state;

[0021] (5) Manually control the descent of the suspension frame while the vehicle remains suspended;

[0022] (6) Use a gap sensor installed at the lower end of the magnetic levitation platform of the suspension frame to measure the change of the suspension gap during the landing process, and record the suspension gap change curve during the landing process.

[0023] Preferably, the vertical loading / eccentric loading impact resistance test of the suspension frame comprises the following steps:

[0024] (1) Maintain suspension while the vehicle remains stable;

[0025] (2) Using a vertical loading device to quickly impact the suspension frame magnetic levitation platform;

[0026] (3) The gap change is measured using a gap sensor installed at the lower end of the box beam, and the suspension gap and electromagnet current change curves are recorded when an impact force of 250 kg and 500 kg is applied, respectively.

[0027] Preferably, the guided loading / impact test comprises the following steps:

[0028] (1) Realize the suspension guidance control of the suspension frame while the whole vehicle remains suspended;

[0029] (2) The lateral actuator of the side loading device loads any point on the side of the magnetic levitation frame to perform a guide loading / impact test; the gap change during the loading process is measured using a guide gap sensor, the current change during the loading process is measured using a current transformer, and the output voltage of the guide controller is measured using a high-voltage differential probe

[0030] Beneficial effects:

[0031] The present invention provides a high-speed magnetic levitation guidance control test platform and test method, which has the advantages of simple structure and accurate simulation of actual vehicle working conditions. The main function of the vibration table system is to study the control performance of the suspension guidance system and the adaptability of the suspension guidance control algorithm under complex working conditions by simulating working conditions such as different tracks, the coupling relationship between track irregularity and speed. The main functions are as follows: (1) It has the requirements for simulating track vibration working conditions. By changing the stiffness and damping of the vibration table track beam, it simulates different track conditions such as steel beams, cement beams, and switches to verify the control characteristics of the suspension guidance system under different track conditions and study the mechanism of vehicle-track coupling vibration and the method of suppressing vibration; (2) It has the requirements for simulating track irregularity working conditions. Based on changing the vibration frequency of the vibration table track beam, it simulates short-wave irregularity and long-wave irregularity working conditions, studies the relationship between track irregularity, speed (600km / h), and dynamics, and studies the adaptability of the suspension guidance control algorithm to different vehicle speeds and track irregularities. The gantry loading system simulates a variety of load conditions such as full load, heavy load, overload, eccentric load, crosswind and aerodynamic force under oncoming vehicles to study the control performance of the suspension guidance system under different load conditions. The decoupling test system has the function of simulating the torsional deformation of a certain point of a single suspension frame. Through the jacking displacement of a certain point displacement loading device, it simulates the deformation or rise of a certain point of a single suspension frame to study the decoupling characteristics of a single suspension frame; under the static floating condition of the dual suspension magnetic levitation platform, it has the function of applying torsional force to study the control performance of the suspension guidance system under different posture conditions of the suspension frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a high-speed magnetic levitation guidance control test platform of the present invention;

[0033] Figure 2 for Figure 1 A schematic diagram of a partial three-dimensional structure of an embodiment;

[0034] Figure 3 It is a structural diagram of the gantry loading system;

[0035] Figure 4 It is the structural diagram of the vibration table system;

[0036] Figure 5 It is a schematic diagram of the structure of the decoupling test system;

[0037] Among them, 10-base, 20-suspension frame magnetic levitation platform, 30-gantry loading system, 31-gantry, 32-vertical loading device, 33-lateral loading device, 40-vibration table system, 41-track beam simulation platform, 42-ground simulation platform, 43-hydraulic excitation system, 50-decoupling test system, 51-support device, 52-displacement loading device, 53-detection sensor. DETAILED DESCRIPTION

[0038] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0039] Reference Figure 1 and Figure 2

[0040] The present invention provides a high-speed magnetic levitation guidance control test platform, comprising: a base 10, a suspension frame magnetic levitation platform 20 arranged above the base 10, a gantry loading system 30 arranged above the suspension frame magnetic levitation platform 20, a vibration table system 40 arranged below the suspension frame magnetic levitation platform 20, and a decoupling test system 50 arranged on the base 10;

[0041] The vibration table system 40 includes a track beam simulation platform 41 disposed below the suspension frame magnetic levitation platform 20, a ground simulation platform 42 disposed below the track beam simulation platform 41, a hydraulic excitation system 43 disposed below the ground simulation platform 42, and a data acquisition system disposed on the base 10;

[0042] The decoupling test system 50 is used to test the decoupling performance of the suspension frame;

[0043] The gantry loading system 30 is used to apply vertical and lateral loads to the suspension frame magnetic levitation platform 20 to simulate one or more working conditions of heavy load, overload, eccentric load, impact, and crosswind.

[0044] In this embodiment of the present invention, the data acquisition system includes one or more of a gap sensor, an acceleration sensor, and an electromagnet temperature sensor, which are used to obtain key data of the suspension frame magnetic levitation platform 20 to provide data support for comprehensive testing.

[0045] In this embodiment of the present invention, the decoupling test system 50 includes a support device 51 disposed below the suspension frame magnetic levitation platform 20, a displacement loading device 52 and a detection sensor 53 disposed on the support device 51. The displacement loading device 52 provides a torsional force for the suspension frame magnetic levitation platform 20 to simulate different posture conditions of the suspension frame guide platform; the detection sensor 53 is used to detect the control performance of the guide system under different posture conditions of the suspension frame guide platform.

[0046] In this embodiment of the present invention, the gantry loading system 30 includes two gantries 31 spaced apart on the suspension frame magnetic levitation platform 20, a vertical loading device 32 and a side loading device 33 arranged on the gantry 31, and an air path system connected to the vertical loading device 32 and the side loading device 33; the vertical loading device 32 moves laterally and vertically along the gantry 31, and performs a loading test on a specific area on the top surface of the suspension frame magnetic levitation platform 20, simulating one or more load conditions of full load, heavy load, overload, and eccentric load;

[0047] The side loading device 33 moves longitudinally on the gantry 31 to perform a loading test on a specific area on the side of the suspension frame magnetic levitation platform 20 to simulate the aerodynamic conditions of side wind and / or oncoming vehicles.

[0048] Furthermore, a groove is provided on the base 10 , and the hydraulic excitation system 43 is arranged in the groove; the track beam simulation platform 41 is adapted to the suspension frame magnetic levitation platform 20 .

[0049] In this embodiment of the present invention, the hydraulic excitation system 43 includes a servo actuator assembly, a hydraulic station and a controller unit, which are used to provide an excitation frequency to the test bench to simulate the working condition of an uneven track.

[0050] A test method for a high-speed magnetic levitation guidance control test comprises using the above-mentioned high-speed magnetic levitation guidance control test platform to perform a suspension frame gap characteristic test, a suspension frame suspension current / voltage characteristic test, a suspension frame magnetic levitation platform 20 bearing capacity test, a suspension frame vertical loading / eccentric load impact resistance test, a variable gap suspension characteristic test, a variable main voltage suspension characteristic test, a suspension frame guide gap characteristic test, a suspension frame guide current / voltage characteristic test, and a guide loading / impact test.

[0051] In this embodiment of the present invention, the suspension frame gap characteristic test includes the following steps:

[0052] (1) Manually control the rise and fall of the suspension frame while the vehicle is in the landing state;

[0053] (2) using a gap sensor installed at the lower end of the suspension frame magnetic levitation platform 20 to measure the gap during the levitation process and record a curve of the levitation gap change during the levitation process;

[0054] (3) Achieve steady-state suspension while the vehicle remains in the landing state;

[0055] (4) using a gap sensor installed at the lower end of the suspension frame magnetic levitation platform 20 to measure the steady-state suspension gap and record the suspension gap change curve under the steady-state suspension state;

[0056] (5) Manually control the descent of the suspension frame while the vehicle remains suspended;

[0057] (6) Use a gap sensor installed at the lower end of the suspension frame magnetic levitation platform 20 to measure the change of the suspension gap during the landing process, and record the suspension gap change curve during the landing process.

[0058] In this embodiment of the present invention, the vertical loading / eccentric loading impact resistance test of the suspension frame includes the following steps:

[0059] (1) Maintain suspension while the vehicle remains stable;

[0060] (2) using the vertical loading device 32 to quickly impact the suspension frame magnetic levitation platform 20;

[0061] (3) The gap change is measured using a gap sensor installed at the lower end of the box beam, and the suspension gap and electromagnet current change curves are recorded when an impact force of 250 kg and 500 kg is applied, respectively.

[0062] In this embodiment of the present invention, the guided loading / impact test comprises the following steps:

[0063] (1) Realize the suspension guidance control of the suspension frame while the whole vehicle remains suspended;

[0064] (2) The lateral actuator of the side loading device 33 is used to load any point on the side of the magnetic levitation frame to perform a guide loading / impact test; a guide gap sensor is used to measure the gap change during the loading process, a current transformer is used to measure the current change during the loading process, and a high-voltage differential probe is used to measure the output voltage of the guide controller.

[0065] In this embodiment of the present invention, the suspension current / voltage characteristic test of the suspension frame includes the following steps:

[0066] (1) Manually control the rise and fall of the suspension frame while the vehicle is in the landing state;

[0067] (2) Use a current transformer to measure the output current of the controller during the floating process. Record the current change curve during the floating process. Use a high-voltage differential probe to measure the output voltage of the controller during steady-state suspension. Record the change curve of the controller output voltage in the floating state;

[0068] (3) Achieve steady-state suspension of the suspension frame while the vehicle remains stable;

[0069] (4) Use a current transformer to measure the output current of the controller in steady state, and record the change curve of the controller output current in steady state suspension. Use a high-voltage differential probe to measure the output voltage of the controller in steady state suspension, and record the change curve of the controller output voltage in steady state suspension;

[0070] (5) Manually control the descent of the suspension frame while the vehicle remains stable; use a current transformer to measure the current change during the descent process. Record the output current change curve of the controller during the descent process. Use a high-voltage differential probe to measure the output voltage of the controller during steady-state suspension. Record the change curve of the controller output voltage during the descent state.

[0071] In this embodiment of the present invention, the load-bearing capacity test of the suspension frame magnetic levitation platform 20 includes the following steps:

[0072] (1) Load different weights on the vehicle-mounted platform and manually control the floating, stable suspension, and landing of the suspension frame while the vehicle is still in the landing state;

[0073] (2) The gap sensor installed at the lower end of the box girder was used to measure the gap changes during floating and steady state, and the change curves of the suspension gap and electromagnet current were recorded when the load was 2250 kg (AW2) and 3250 kg (AW3).

[0074] In this embodiment of the present invention, the variable gap suspension characteristic test includes the following steps: testing the suspension performance under different suspension gaps;

[0075] (1) Achieve suspension control under different preset gaps while keeping the vehicle stable;

[0076] (2) The suspension gap is measured using a gap sensor installed at the lower end of the box beam, and the suspension gap and current change curves are recorded when the rated suspension gaps are 9 mm, 10 mm, 11 mm, and 12 mm, respectively.

[0077] Variable main voltage suspension characteristic test, test the suspension performance of the test platform under different input voltages. The test method and steps are as follows:

[0078] (1) Realize suspension control under different input voltages while keeping the vehicle stable;

[0079] (2) The floating gap is measured with a gap sensor installed at the lower end of the box beam, and the input voltage of the controller is measured with a high-voltage differential probe. The floating gap change curves with input voltages of 340V, 440V, 540V, and 600V are recorded.

[0080] The magnetic levitation frame guide gap characteristic test includes the following test methods and steps:

[0081] (1) Manually control the magnetic levitation frame to start the guide while the vehicle remains suspended;

[0082] (2) Use a guide gap sensor to measure the gap change during the guiding process;

[0083] (3) Realize the guidance control of the magnetic levitation frame while the whole vehicle remains suspended;

[0084] (4) Measuring the change of guide clearance with a guide clearance sensor;

[0085] (5) Manually control the guidance and stopping of the magnetic levitation frame while the vehicle remains suspended;

[0086] (6) Use a guide gap sensor to measure the gap change during the guide stop process.

[0087] The magnetic levitation frame guide current / voltage characteristic test includes the following test methods and steps:

[0088] (1) Manually control the magnetic levitation frame to start the guide while the vehicle remains suspended;

[0089] (2) Use a current transformer to measure the output current of the controller during the booting process. Use a high-voltage differential probe to measure the output voltage of the booting controller;

[0090] (3) Realize the guidance control of the magnetic levitation frame while the whole vehicle remains suspended;

[0091] (4) Use a current transformer to measure the output current of the guide controller in the suspended state. Use a high-voltage differential probe to measure the output voltage of the guide controller;

[0092] (5) Manually control the guidance and stopping of the 7 magnetic suspension frames while the vehicle remains suspended;

[0093] (6) Use a current transformer to measure the current change during the stop process. Use a high-voltage differential probe to measure the output voltage of the pilot controller.

[0094] Beneficial effects:

[0095] The present invention provides a high-speed magnetic levitation guidance control test platform and test method, which has the advantages of simple structure and accurate simulation of actual vehicle working conditions. The vibration table system 40 is mainly used to study the control performance of the suspension guidance system and the adaptability of the suspension guidance control algorithm under complex working conditions by simulating working conditions such as different tracks, the coupling relationship between track irregularity and speed. The main functions are as follows: (1) It has the requirements for simulating track vibration working conditions. By changing the stiffness and damping of the vibration table track beam, it simulates different track conditions such as steel beams, cement beams, and switches to verify the control characteristics of the suspension guidance system under different track conditions and study the mechanism of vehicle-track coupling vibration and the method of suppressing vibration; (2) It has the requirements for simulating track irregularity working conditions. Based on changing the vibration frequency of the vibration table track beam, it simulates short-wave irregularity and long-wave irregularity working conditions, studies the relationship between track irregularity, speed (600km / h), and dynamics, and studies the adaptability of the suspension guidance control algorithm to different vehicle speeds and track irregularities. The gantry loading system 30 studies the control performance of the suspension guidance system under different load conditions by simulating various load conditions such as full load, heavy load, overload, eccentric load, crosswind and aerodynamic force under the condition of meeting. The decoupling test system 50 has the function of simulating the torsional deformation condition of a certain point of the single suspension frame. Through the jacking displacement of the displacement loading device 52 at a certain point, it simulates the deformation or rise of a certain point of the single suspension frame to study the decoupling characteristics of the single suspension frame; under the static floating condition of the double suspension magnetic levitation platform, it has the function of applying torsion force to study the control performance of the suspension guidance system under different posture conditions of the suspension frame.

[0096] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0097] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0098] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0099] The above contents are further detailed descriptions of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. A high-speed magnetic levitation guidance control test platform, characterized in that: include: A base, a suspension frame magnetic levitation platform arranged above the base, a gantry loading system arranged above the suspension frame magnetic levitation platform, a vibration table system arranged below the suspension frame magnetic levitation platform, and a decoupling test system arranged on the base; The vibration table system includes a track beam simulation platform arranged below the suspension frame magnetic levitation platform, a ground simulation platform arranged below the track beam simulation platform, a hydraulic excitation system arranged below the ground simulation platform, and a data acquisition system arranged on a base; The decoupling test system is used to test the decoupling performance of the suspension frame, and includes a support device arranged below the magnetic levitation platform of the suspension frame, a displacement loading device and a detection sensor arranged on the support device; The displacement loading device provides a torsional force for the suspension frame magnetic levitation platform to simulate different posture conditions of the suspension frame guide platform; The detection sensor is used to detect the control performance of the guidance system under different posture conditions of the suspension frame guidance platform; The gantry loading system is used to apply vertical and lateral loads to the suspension frame magnetic levitation platform to simulate one or more working conditions of heavy load, overload, eccentric load, impact, and crosswind.

2. The high-speed magnetic levitation guidance control test platform according to claim 1 is characterized in that: The data acquisition system includes one or more of a gap sensor, an acceleration sensor, and an electromagnet temperature sensor, which are used to obtain key data of the suspension frame magnetic levitation platform and provide data support for comprehensive testing.

3. The high-speed magnetic levitation guidance control test platform according to claim 1 is characterized in that: The gantry loading system comprises two gantries spaced apart on the suspension frame magnetic levitation platform, a vertical loading device and a side loading device arranged on the gantries, and an air path system connected to the vertical loading device and the side loading device; the vertical loading device moves laterally and vertically along the gantry, performs a loading test on a specific area on the top surface of the suspension frame magnetic levitation platform, and simulates one or more load conditions of full load, heavy load, overload, and eccentric load; The side loading device moves longitudinally on the gantry, and performs a loading test on a specific area on the side of the magnetic levitation platform of the suspension frame, so as to simulate the aerodynamic conditions of side wind and / or oncoming vehicles.

4. The high-speed magnetic levitation guidance control test platform according to claim 1 is characterized in that: The base is provided with a groove, and the hydraulic excitation system is arranged in the groove; the track beam simulation platform is adapted to the suspension frame magnetic levitation platform.

5. The high-speed magnetic levitation guidance control test platform according to claim 1 is characterized in that: The hydraulic excitation system includes a servo actuator assembly, a hydraulic station and a controller unit, and is used to provide an excitation frequency to the test bench to simulate the working condition of an uneven track.

6. A test method for high-speed magnetic levitation guidance control test, characterized in that: The invention comprises using the high-speed magnetic levitation guidance control test platform described in claims 1-5 to carry out suspension frame gap characteristic test, suspension frame suspension current / voltage characteristic test, suspension frame magnetic levitation platform bearing capacity test, suspension frame vertical loading / eccentric load impact resistance test, variable gap suspension characteristic test, variable main voltage suspension characteristic test, suspension frame guide gap characteristic test, suspension frame guide current / voltage characteristic test and guide loading / impact test.

7. The test method for high-speed magnetic levitation guidance control test according to claim 6 is characterized in that: The suspension frame clearance characteristic test comprises the following steps: (1) Manually control the rise and fall of the suspension frame while the vehicle is in the landing state; (2) Using a gap sensor installed at the lower end of the magnetic levitation platform of the suspension frame to measure the gap during the levitation process, and recording the levitation gap change curve during the levitation process; (3) Achieve steady-state suspension while the vehicle remains in the landing state; (4) using a gap sensor installed at the lower end of the magnetic levitation platform of the suspension frame to measure the steady-state suspension gap and record the suspension gap change curve under the steady-state suspension state; (5) Manually control the descent of the suspension frame while the vehicle remains suspended; (6) Use a gap sensor installed at the lower end of the magnetic levitation platform of the suspension frame to measure the change of the suspension gap during the landing process, and record the suspension gap change curve during the landing process.

8. The test method for high-speed magnetic levitation guidance control test according to claim 6 is characterized in that: The vertical loading / eccentric loading impact resistance test of the suspension frame includes the following steps: (1) Maintain suspension while the vehicle remains stable; (2) Using a vertical loading device to quickly impact the suspension frame magnetic levitation platform; (3) The gap change is measured using a gap sensor installed at the lower end of the box beam, and the suspension gap and electromagnet current change curves are recorded when an impact force of 250 kg and 500 kg is applied, respectively.

9. The test method for high-speed magnetic levitation guidance control test according to claim 6, characterized in that: The guided loading / impact test comprises the following steps: (1) Realize the suspension guidance control of the suspension frame while the whole vehicle remains suspended; (2) The lateral actuator of the lateral loading device loads any point on the side of the magnetic levitation frame to perform a guide loading / impact test; the gap change during the loading process is measured by a guide gap sensor, the current change during the loading process is measured by a current transformer, and the output voltage of the guide controller is measured by a high-voltage differential probe.

Images