A scaled active semi-active suspension test platform for electric maglev train

Abstract

The application discloses a scaled active semi-active suspension device test platform suitable for an electric maglev train, which comprises a plurality of scaled car bodies, scaled suspension frames, vibration simulation devices and inter-car connecting devices, the adjacent scaled car bodies are connected through the inter-car connecting devices, the scaled car body comprises a base plate, a longitudinal beam and a transverse actuator mounting seat; the scaled suspension frame comprises a framework, magnets, primary suspensions, secondary suspensions, a transverse actuator, a vertical actuator and a mounting adapter, the magnets are arranged on both sides of the framework, the primary suspensions are arranged at the bottom of the framework, the secondary suspensions are arranged at the upper part of the framework, the transverse actuator is arranged at the end of the framework and is connected with the transverse actuator mounting seat, and the vertical actuator is arranged at the upper part of the framework and is connected with the base plate; the vibration simulation device comprises a six-degree-of-freedom vibration simulation platform and a ground mounting plate, the six-degree-of-freedom vibration simulation platform is arranged on the ground mounting plate, and the primary suspensions are connected with the six-degree-of-freedom vibration simulation platform through the mounting adapter.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of maglev vehicle testing, and particularly relates to a scaled active semi-active suspension device test platform suitable for electric maglev trains. BACKGROUND

[0002] When an electric maglev (EDS) type maglev train is running, the onboard magnet magnetic field cuts the ground coil to generate an induced current and an induced magnetic field, the onboard magnet magnetic field and the ground coil induced magnetic field interact to generate electromagnetic suspension force and guiding force, so as to realize the suspension and guidance of the train, and the EDS type has the characteristics of strong bearing capacity, large suspension height and low track precision requirement, and is an important development direction of high-speed rail transit.

[0003] The suspension device is an important component for ensuring the safety and comfort of the electric maglev train, and the electric maglev train is affected by factors such as wideband excitation, magnetic track relationship and nonlinear suspension components, switching between support and suspension state, and complex boundary side strips. Therefore, it is necessary to use active suspension or semi-active suspension to solve the above problems.

[0004] The existing similar platform or the platform unsuitable for electric maglev trains cannot play a verification role, or the full-size platform has high cost and poor economy. SUMMARY

[0005] The present application provides a scaled active semi-active suspension device test platform suitable for electric maglev trains, which can solve the technical problems in the prior art.

[0006] The present application provides a scaled active semi-active suspension device test platform suitable for electric maglev trains, wherein the test platform comprises a plurality of scaled car bodies, a scaled suspension frame, a vibration simulation device and a car-to-car connecting device, adjacent scaled car bodies are connected through the car-to-car connecting device,

[0007] The scaled car body comprises a base plate, a longitudinal beam and a transverse actuator mounting seat, the longitudinal beam is arranged on the upper surface of the base plate, and the transverse actuator mounting seat is arranged on the lower surface of the base plate;

[0008] The scaled suspension frame comprises a frame, a magnet, a primary suspension, a secondary suspension, a transverse actuator, a vertical actuator and a mounting adapter, the magnet is arranged on both sides of the frame, the primary suspension is arranged at the bottom of the frame, the secondary suspension is arranged at the upper part of the frame, the transverse actuator is arranged at the end of the frame and connected with the transverse actuator mounting seat, and the vertical actuator is arranged at the upper part of the frame and connected with the base plate;

[0009] The vibration simulation device comprises a six-degree-of-freedom vibration simulation platform and a ground installation plate, the six-degree-of-freedom vibration simulation platform is arranged on the ground installation plate, the ground installation plate is arranged on the ground, and the primary suspension is connected with the six-degree-of-freedom vibration simulation platform through the installation adapter.

[0010] Preferably, the workshop connecting device comprises longitudinal actuators and force transmission members, both ends of the force transmission members are connected to the lower part of the base plate of the adjacent scaled car body, and both ends of the longitudinal actuators are connected to the upper part of the base plate of the adjacent scaled car body.

[0011] Preferably, the number of the scaled car bodies is three, and two scaled suspension frames are arranged corresponding to each of the scaled car bodies, each of the scaled suspension frames comprises two lateral actuators and two vertical actuators.

[0012] Preferably, the number of the scaled car bodies is three, and four scaled suspension frames are arranged corresponding to the three scaled car bodies, the connection positions of the adjacent scaled car bodies share one scaled suspension frame, and each of the scaled suspension frames comprises two lateral actuators and four vertical actuators.

[0013] Preferably, both ends of the force transmission members are connected to the lower part of the base plate of the adjacent scaled car body through spherical hinges, and both ends of the longitudinal actuators are connected to the upper part of the base plate of the adjacent scaled car body through spherical hinges.

[0014] Preferably, the primary suspension and the secondary suspension adopt steel springs.

[0015] Preferably, the six-degree-of-freedom vibration simulation platform is fixed on the ground installation plate through T-shaped slot nuts and bolts.

[0016] Preferably, the ground installation plate is fixed on the ground through nuts and ground anchor bolts.

[0017] Preferably, the longitudinal beams are fixed on the upper surface of the base plate through screwing.

[0018] Preferably, the lateral actuator mounting seat is fixed on the lower surface of the base plate through screwing.

[0019] Through the above technical solution, the scaled single-section car active and semi-active suspension device, the scaled car hook connection marshalling car active and semi-active suspension device, and the scaled hinged connection marshalling car active and semi-active suspension device can be tested and verified offline, and the test platform has good safety and effectiveness and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is understood that the drawings are for purposes of illustrating the concepts of the application and are not intended to limit the scope of the application. It is further understood that the drawings can not be drawn to scale and that relative dimensions of various details are intended to be indicative and not definitive of the actual size of the structures.

[0021] Figure 1 Fig. 1 shows a single car mode exploded view of a scaled active and semi-active suspension test platform for an electric maglev train according to an embodiment of the present application; and

[0022] Figure 2 Fig. 2 shows a single car mode schematic diagram of a scaled active and semi-active suspension test platform for an electric maglev train according to an embodiment of the present application;

[0023] Figure 3 Fig. 3 shows a schematic diagram of a scaled car body according to an embodiment of the present application;

[0024] Figure 4 Fig. 4 shows a schematic diagram of a scaled bogie according to an embodiment of the present application;

[0025] Figure 5 Fig. 5 shows a schematic diagram of a vibration simulation device according to an embodiment of the present application;

[0026] Figure 6 Fig. 6 shows a schematic diagram of a three consist car coupler connection mode of a scaled active and semi-active suspension test platform according to an embodiment of the present application;

[0027] Figure 7A Fig. 7 shows a schematic diagram of a three consist car coupler connection mode of a scaled active and semi-active suspension test platform according to an embodiment of the present application; 7B

[0028] Fig. 8 shows a schematic diagram of a three consist articulated connection mode of a scaled active and semi-active suspension test platform according to an embodiment of the present application; Figure 8

[0029] Fig. 9 shows a schematic diagram of a three consist articulated connection mode of a scaled active and semi-active suspension test platform according to an embodiment of the present application; Figure 9A 9B DETAILED DESCRIPTION

[0030] ​​It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other in the case of no conflict. The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one example embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a reference to the presence of a feature, step, operation, device, component and / or combinations thereof.

[0032] Unless specifically stated otherwise, the relative arrangements of the components and steps, numerical expressions, and numerical values set forth in the examples herein are not meant to limit the scope of the present application. It is to be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale, and that for the sake of convenience and clarity certain prior art materials, methods and devices are not depicted in detail. In this disclosure, any reference to something being deposited, removed, or otherwise treated, is to be interpreted as meaning that the thing is deposited, removed, or otherwise treated in a manner that is known to one of ordinary skill in the relevant art, unless otherwise specified. In all examples shown and discussed herein, any specific values are to be interpreted as merely illustrative, and not as a limitation. Thus, other example embodiments of the exemplary embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings and that, as typically used herein, the following terminology can have the following meaning(s):

[0033] As Figures 1-6 shown, the embodiment of the present application provides a scaled active semi-active suspension device test platform suitable for electric maglev trains, wherein the test platform comprises a plurality of scaled car bodies 1, a scaled bogie 2, a vibration simulation device 3 and a car-to-car connecting device 4, adjacent scaled car bodies 1 are connected through the car-to-car connecting device 4,

[0034] The scaled car body 1 comprises a base plate 11, a longitudinal beam 12 and a transverse actuator mounting seat 13, the longitudinal beam 12 is arranged on the upper surface of the base plate 11, and the transverse actuator mounting seat 13 is arranged on the lower surface of the base plate 11;

[0035] The scaled suspension 2 comprises a frame 24, magnets 21, primary suspension 23, secondary suspension 26, lateral actuator 25, vertical actuator 27 and mounting adapter 22, the magnets 21 are arranged on both sides of the frame 24, the primary suspension 23 is arranged at the bottom of the frame 24, the secondary suspension 26 is arranged at the upper part of the frame 24, the lateral actuator 25 is arranged at the end of the frame 24 and connected with the lateral actuator mounting seat 13, and the vertical actuator 27 is arranged at the upper part of the frame 24 and connected with the base plate 11.

[0036] The vibration simulation device 3 comprises a six-degree-of-freedom vibration simulation platform 31 and a ground mounting plate 32, the six-degree-of-freedom vibration simulation platform 31 is arranged on the ground mounting plate 32, the ground mounting plate 32 is arranged on the ground, and the primary suspension 23 is connected with the six-degree-of-freedom vibration simulation platform 31 through the mounting adapter 22.

[0037] Through the above technical scheme, the scaled single-section vehicle active semi-active suspension device, the scaled vehicle hook connection marshalling vehicle active semi-active suspension device and the scaled hinged connection marshalling vehicle active semi-active suspension device can be tested offline, and the test platform has good safety and effectiveness and low cost.

[0038] For example, the scaled ratio can be selected between 1:8 and 1:12 according to factors such as site, economy and size of matched parts, and the present application does not limit this. When the platform is in a single-section vehicle mode, from top to bottom, it can comprise at least one set of scaled vehicle body, two sets of scaled suspension and one set of vibration simulation device, as shown in Figure 1 and 2 .

[0039] Among them, the scaled vehicle body is used to simulate the rigid body mode and the first-order elastic body mode of the vehicle body, the scaled suspension is used to simulate the suspension arrangement mode and the rigid body mode frequency of the suspension and is provided with an active semi-active suspension device, the vibration simulation device simulates ground excitation such as unevenness and bridge vertical bending and provides a stable mounting foundation for the whole platform; the scaled vehicle body and the scaled suspension are screwed together through the secondary suspension, the lateral actuator and the vertical actuator on the scaled suspension, the scaled suspension and the vibration simulation device are screwed together through the mounting adapter at the lower part of the primary suspension of the scaled suspension, and the vibration simulation device is connected with the ground through the ground mounting plate.

[0040] When the test platform is in marshalling train coupler connection mode, it consists of at least two sets of platform modules in single-car mode. Adjacent scaled car bodies are connected together by a workshop connection device, which is used to simulate the force transmission characteristics between trains. When the test platform is in marshalling train articulation connection mode, it consists of at least two sets of platform modules in single-car mode, and the scaled car bodies are corresponding articulated scaled car bodies. An additional scaled car body is installed on the scaled suspension frame of the adjacent platform, so that adjacent scaled car bodies share the same scaled suspension frame. At the same time, adjacent scaled car bodies are connected together by a workshop connection device to simulate the force transmission characteristics between trains. When the platform is in marshalling train mode, the marshalling length and the type of workshop connection device can be increased or decreased according to the needs of the research task.

[0041] According to one embodiment of the present invention, the workshop connection device 4 includes a longitudinal actuating device 41 and a force transmitting member 42, the two ends of the force transmitting member 42 are connected to the lower part of the base plate 11 of the adjacent scaled vehicle body 1, and the two ends of the longitudinal actuating device 41 are connected to the upper part of the base plate 11 of the adjacent scaled vehicle body 1.

[0042] According to one embodiment of the present invention, the number of the scaled vehicle bodies 1 is three, and each scaled vehicle body 1 is correspondingly provided with two scaled suspension frames 2, and each scaled suspension frame 2 includes two lateral actuating devices 25 and two vertical actuating devices 27.

[0043] That is, if Figure 6 As shown in Figure 7, this embodiment is used to conduct scaled verification of the active suspension scheme of a three-car coupler-connected train. It can be composed of three single-car model platforms. The scaled suspension frame 2 of each platform includes two lateral actuators 25 and two vertical actuators 27. In this embodiment, the ground mounting plates 32 of the three single-car model platforms are arranged side by side. The spacing between the scaled suspension frames 2 and the six-degree-of-freedom vibration simulation platform 31 below the adjacent single-car platforms is adjusted by T-slots to meet the installation requirements; the adjacent scaled car bodies 1 are connected by a workshop connection device 4, and the two ends of the two longitudinal actuators 41 are respectively connected to the upper part of the scaled car body base plate 11 of the adjacent scaled car body 1 by ball joints. The scaled force transmission member 42 simulates the coupler force transmission, and the two ends are connected to the lower part of the adjacent scaled car body base plate 11 by ball joints. The above combination can realize the construction of an active suspension performance simulation platform for a three-car coupler-connected train.

[0044] According to one embodiment of the present invention, alternatively, the number of the scaled car bodies 1 is three, and four scaled suspension frames 2 are correspondingly provided for the three scaled car bodies 1, wherein the connection positions of adjacent scaled car bodies 1 share one scaled suspension frame 2, and each scaled suspension frame 2 includes two lateral actuating devices 25 and four vertical actuating devices 27.

[0045] That is, ifFigure 8 As shown in FIGS. 9 and 10, the embodiment is used for scale verification of active suspension scheme of three-formation articulated connected train, which is composed of two single-car mode platforms and one additional scale car body 1. The scale bogie 2 of each platform contains two lateral actuators 25 and four vertical actuators 27. In this example, the ground installation plates 32 of the two single-car mode platforms are arranged side by side. One end of the scale car body 1 used by the test platform is connected with two secondary suspensions 26, one lateral actuator 25 and two vertical actuators 27 of the scale bogie 2. The other two secondary suspensions 26, one lateral actuator 25 and two vertical actuators 27 of the scale bogie 2 are connected with the additional scale car body 1 in the middle. Meanwhile, the scale car body 1 and the additional scale car body 1 in the middle are connected through the inter-car connecting device 4. The two ends of the two longitudinal actuators 41 are respectively connected through spherical hinges on the upper part of the scale car body base plate 11 of the adjacent scale car body 1. The scale force transmission member 42 simulates the force transmission of the car coupler, and the two ends are connected through spherical hinges on the lower part of the adjacent scale car body base plate 11. Through the above combination, the construction of the active suspension performance simulation platform of the three-formation articulated connected train can be realized.

[0046] According to an embodiment of the present application, the two ends of the force transmission member 42 are connected through spherical hinges on the lower part of the base plate 11 of the adjacent scale car body 1, and the two ends of the longitudinal actuator 41 are connected through spherical hinges on the upper part of the base plate 11 of the adjacent scale car body 1.

[0047] According to an embodiment of the present application, the primary suspension 23 and the secondary suspension 26 adopt steel springs.

[0048] Alternatively, the primary suspension 23 and the secondary suspension 26 can also adopt rubber springs or air springs.

[0049] According to an embodiment of the present application, the six-degree-of-freedom vibration simulation platform 31 is fixed on the ground installation plate 32 through T-shaped slot nuts and bolts.

[0050] According to an embodiment of the present application, the ground installation plate 32 is fixed on the ground through nuts and ground anchoring bolts.

[0051] According to an embodiment of the present application, the longitudinal beam 12 is fixed on the upper surface of the base plate 11 through screwing.

[0052] According to an embodiment of the present application, the lateral actuator mounting seat 13 is fixed on the lower surface of the base plate 11 through screwing.

[0053] The scale active and semi-active suspension device test platform suitable for electric magnetic levitation trains according to the present application will be described below in conjunction with examples.

[0054] The scaled vehicle body 1 comprises a base plate 11, two longitudinal beams 12, four transverse actuator mounting seats 13, and a plurality of sensors installed according to different control algorithms. The base plate 11 is the installation base and main load-bearing component of the scaled vehicle body 1, and is provided with mounting interfaces of components such as the longitudinal beams 12, the scaled suspension 2, and the vehicle connection device 4. The components are screwed to the scaled vehicle body, and the first-order elastic body modal frequency is close to that of the actual vehicle body. The longitudinal beams 12 can be inverted T-shaped in cross section, and the first-order elastic body modal frequency of the whole scaled vehicle body can be adjusted within the research range by installing longitudinal beams with different cross-sectional heights. The transverse actuator mounting seat 13 is used to connect with the transverse actuator 25 on the scaled suspension 2. The test platform uses the same scaled vehicle body in single-car mode and in coupled train car coupler connection mode, i.e., one set of scaled vehicle body is connected with two sets of scaled suspension; in coupled train hinged connection mode, the two ends of the scaled vehicle body at both ends are respectively connected with one set of scaled suspension and half a set of scaled suspension, and the two ends of the scaled vehicle body in the middle are respectively connected with two half sets of scaled suspension, i.e., adjacent scaled vehicle bodies share the same set of suspension, realizing hinged coupling.

[0055] The scaled suspension 2 comprises a frame 24, four magnets 21, four primary suspensions 23, four secondary suspensions 26, two transverse actuators 25, two vertical actuators (including four vertical actuators in hinged mode) 27, two mounting adapters 22, and a plurality of sensors installed according to different control algorithms. The frame 24 is the installation base and main load-bearing component of the scaled suspension 2, and is provided with mounting interfaces of components of the scaled suspension. The components are screwed to the scaled frame. The four magnets 21 are used to control the mass ratio and moment of inertia ratio of the scaled suspension 2 and the scaled vehicle body 1, and are screwed to the frame 24. By setting appropriate scaled suspension primary suspension and secondary suspension stiffness, the rigid body modal frequency of the platform is close to that of the research object. The primary suspension and the secondary suspension can realize adjustment of the rigid body modal frequency of the platform within the research range by adjusting the suspension parameters. One end of the mounting adapter is connected with the scaled suspension primary suspension, and the other end is connected with the vibration simulation device. According to different overall schemes of active and semi-active suspension, up to two transverse actuators and up to six vertical actuators can be installed on the scaled frame. The transverse actuators and the vertical actuators can select force or displacement or speed control type actuators, or semi-active damping actuators according to different research schemes. The two ends of each actuator are screwed to the scaled vehicle body and the scaled suspension frame through spherical hinges or rubber joints, and are provided with components such as an upper computer, a controller, a signal collector, a power amplifier, and a power supply. The electrical appliances can be configured according to the actual research scheme. In order not to confuse the invention, details are not described here.

[0056] The vibration simulation device 3 comprises two six-degree-of-freedom vibration simulation platforms 31 and two ground installation plates 32. The six-degree-of-freedom vibration simulation platform 31 can adopt a Stewart platform technical solution, has the advantages of small volume, large actuation range, large rigidity, strong bearing capacity, and non-accumulation of position error while realizing six-degree-of-freedom motion simulation, and the test platform is installed with two six-degree-of-freedom vibration simulation platforms 31 in a single car mode, the number of six-degree-of-freedom vibration simulation platforms 31 is the same as that of the scaled suspension 2 in a marshalling train coupler connection mode and a marshalling train hinged connection mode, and the simulation platform can be matched with a separate controller signal collector, a power amplifier, a power supply and other components. In order not to confuse the present application, details are not described here; the ground installation plate 32 is the installation base of the whole platform, is fixed with the anchor bolts of the ground through nuts, has T-shaped grooves on it, and is connected with the six-degree-of-freedom vibration simulation platform 31 through the T-shaped grooves with nuts and bolts, and the spacing of the six-degree-of-freedom vibration simulation platform 31 can be adjusted according to the needs.

[0057] The car connection device 4 comprises one force transmission member 42 and two longitudinal actuators 41. The force transmission member 42 can be designed to simulate the force transmission of a coupler or a hinged disc according to research needs, and when simulating the force transmission of a coupler, both ends are spherical hinges or rubber joints, and are screwed on the upper part or lower part of the scaled car body 1 and adjusted in height through a gasket; the longitudinal actuator 41 can be installed according to research needs, and can select force or displacement or speed control type actuators, or can select semi-active damping actuators, and both ends of each actuator is connected with the scaled car body 1 through a spherical hinge or a rubber joint.

[0058] As can be seen from the above embodiments, the test platform of the present application can qualitatively compare and analyze different control algorithms, sensor layouts, actuator types, etc. in the design stage of the active semi-active suspension device of the electric mode maglev train, support and guide the design, selection and iteration of the scheme, have good safety and effectiveness, and the cost is only about 1 / 50 to 1 / 100 of the related full-size test platform of the domestic wheel-rail train and the electromagnetic mode maglev train, and has good economy.

[0059] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore cannot be understood as a limitation on the protection scope of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0060] For purposes of the description hereinafter, spatial or directional terms, for example, "above", "below", "upper", "lower", and the like, can be used, and relate to the device as illustrated in the figures. However, it is to be understood that no absolute or relative orientation of the device is intended or implied, unless specifically described as such. Terms concerning attachments, coupling and the like, such as "connected" and "coupled" and the like, are to be construed in accordance with their normal meanings, that is, as referring to an indirect or direct connection or coupling. Any reference to "comprising" or "containing" is to be construed as meaning "comprising or containing, but not limited to". Any reference to "comprising" or "containing" is to be construed as meaning "comprising or containing, but not limited to".

[0061] In addition, it should be pointed out that the use of the terms "first", "second" and the like, to describe various elements, is merely intended to differentiate the elements from one another, and does not connote any special order or order of precedence, unless otherwise specifically indicated. Thus, the use of the terms "first", "second" and the like, is not intended to limit the scope of the present application, and is not intended to connote any special order or order of precedence.

[0062] The preferred embodiments herein disclosed are not intended to limit or restrict the scope of the application, but merely convey the best mode contemplated by the inventors of carrying out the claimed application. Any modifications, variations or changes within the spirit and scope of the application as disclosed herein will be considered to fall within the scope of the application.

Claims

1. A scaled-down active and semi-active suspension test platform suitable for electric maglev trains, characterized by: The test platform comprises a plurality of scaled vehicle bodies (1), scaled suspension frames (2), a vibration simulation device (3) and a workshop connection device (4), wherein adjacent scaled vehicle bodies (1) are connected via the workshop connection device (4). The scaled vehicle body (1) comprises a base plate (11), a longitudinal beam (12) and a transverse actuating device mounting seat (13), wherein the longitudinal beam (12) is arranged on the upper surface of the base plate (11), and the transverse actuating device mounting seat (13) is arranged on the lower surface of the base plate (11); The scaled suspension frame (2) comprises a frame (24), a magnet (21), a primary suspension (23), a secondary suspension (26), a lateral actuating device (25), a vertical actuating device (27) and a mounting adapter (22), wherein the magnet (21) is arranged on both sides of the frame (24), the primary suspension (23) is arranged at the bottom of the frame (24), the secondary suspension (26) is arranged at the top of the frame (24), the lateral actuating device (25) is arranged at the end of the frame (24) and is connected to the lateral actuating device mounting seat (13), and the vertical actuating device (27) is arranged at the top of the frame (24) and is connected to the base plate (11); The vibration simulation device (3) comprises a six-degree-of-freedom vibration simulation platform (31) and a ground mounting plate (32), wherein the six-degree-of-freedom vibration simulation platform (31) is arranged on the ground mounting plate (32), and the ground mounting plate (32) is arranged on the ground, and the primary suspension (23) is connected to the six-degree-of-freedom vibration simulation platform (31) via the mounting adapter (22); The workshop connection device (4) includes a longitudinal actuating device (41) and a force transmission member (42), wherein both ends of the force transmission member (42) are connected to the lower portion of the base plate (11) adjacent to the scaled vehicle body (1), and both ends of the longitudinal actuating device (41) are connected to the upper portion of the base plate (11) adjacent to the scaled vehicle body (1); The number of the scaled vehicle bodies (1) is three, and each scaled vehicle body (1) is correspondingly provided with two scaled suspension frames (2), and each scaled suspension frame (2) includes two lateral actuating devices (25) and two vertical actuating devices (27).

2. The test platform according to claim 1, characterized in that: The number of the scaled vehicle bodies (1) is three, and four scaled suspension frames (2) are correspondingly provided for the three scaled vehicle bodies (1), wherein the connection positions of adjacent scaled vehicle bodies (1) share one scaled suspension frame (2), and each scaled suspension frame (2) includes two lateral actuating devices (25) and four vertical actuating devices (27).

3. The test platform according to claim 1, characterized in that: The two ends of the force transmission member (42) are connected to the lower part of the base plate (11) of the adjacent scaled vehicle body (1) through a ball joint, and the two ends of the longitudinal actuating device (41) are connected to the upper part of the base plate (11) of the adjacent scaled vehicle body (1) through a ball joint.

4. The test platform according to any one of claims 1 to 3, characterized in that: The primary suspension (23) and the secondary suspension (26) use steel springs.

5. The test platform according to any one of claims 1 to 3, characterized in that: The six-degree-of-freedom vibration simulation platform (31) is fixed to the ground mounting plate (32) via T-slot nuts and bolts.

6. The test platform according to any one of claims 1 to 3, characterized in that: The ground mounting plate (32) is fixed to the ground via nuts and ground anchor bolts.

7. The test platform according to any one of claims 1 to 3, characterized in that: The longitudinal beam (12) is fixed to the upper surface of the base plate (11) by screw connection.

8. The test platform according to any one of claims 1 to 3, characterized in that: The lateral actuating device mounting seat (13) is fixed to the lower surface of the base plate (11) by screw connection.

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