Scaling ratio active and semi-active suspension device test platform suitable for electric maglev train

Abstract

The invention discloses a scaling active and semi-active suspension device test platform suitable for an electric maglev train, the scaling active and semi-active suspension device test platform comprises a plurality of scaling train bodies, scaling suspension frames, vibration simulation devices and workshop connecting devices, the adjacent scaling train bodies are connected through the workshop connecting devices, and each scaling train body comprises a base plate, a longitudinal beam and a transverse actuating device mounting seat; the scaling suspension frame comprises a framework, magnets, a primary suspension, a secondary suspension, a transverse actuating device, a vertical actuating device and a mounting adapter, the magnets are arranged on two sides of the framework, the primary suspension is arranged at the bottom of the framework, the secondary suspension is arranged on the upper portion of the framework, the transverse actuating device is arranged at the end of the framework and connected with a mounting seat of the transverse actuating device, and the vertical actuating device is connected with the mounting adapter. The vertical actuating device 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 suspension is connected with the six-degree-of-freedom vibration simulation platform through a mounting adapter.

Description

Technical Field

[0001] The invention relates to the technical field of maglev vehicle testing, and in particular to a scaled-down active and semi-active suspension device testing platform suitable for electric maglev trains. Background Art

[0002] When an electric maglev (EDS) maglev train is running, the magnetic field of the on-board magnet cuts through the ground coil to generate induced current and induced magnetic field. The magnetic field of the on-board magnet interacts with the induced magnetic field of the ground coil to generate electromagnetic suspension force and guiding force, thereby realizing the suspension and guidance of the train. This system has the characteristics of strong carrying capacity, large suspension height, and low track accuracy requirements. It is an important development direction of high-speed rail transit.

[0003] The suspension device is an important component to ensure the safety and comfort of electric maglev trains. Electric maglev trains are affected by factors such as wide-band excitation, magnetic-track relationship and nonlinearity of suspension components, switching between support and suspension states, and complex boundary strips. The traditional passive suspension device can no longer meet the safety and comfort requirements of the train. Therefore, it is necessary to use active suspension or semi-active suspension to solve the above problems.

[0004] Existing similar platforms are either not suitable for electric maglev trains and cannot serve as verification platforms, or they are full-size platforms with high costs and poor economic efficiency. Summary of the invention

[0005] The invention provides a scaled-down active and semi-active suspension device test platform suitable for an electric maglev train, which can solve the technical problems in the prior art.

[0006] The present invention provides a scaled active and 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 workshop connection device, wherein adjacent scaled car bodies are connected by the workshop connection device.

[0007] The scaled vehicle body comprises a base plate, a longitudinal beam and a transverse actuator mounting seat, wherein 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 includes a frame, a magnet, a primary suspension, a secondary suspension, a lateral actuating device, a vertical actuating device and a mounting adapter, wherein 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 lateral actuating device is arranged at the end of the frame and connected to the lateral actuating device mounting seat, and the vertical actuating device is arranged at the upper part of the frame and connected to the base plate;

[0009] The vibration simulation device includes 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, the ground mounting plate is arranged on the ground, and the primary suspension is connected to the six-degree-of-freedom vibration simulation platform through the mounting adapter.

[0010] Preferably, the workshop connection device includes a longitudinal actuating device and a force transmitting member, both ends of the force transmitting member are connected to the lower part of the base plate adjacent to the scaled vehicle body, and both ends of the longitudinal actuating device are connected to the upper part of the base plate adjacent to the scaled vehicle body.

[0011] Preferably, the number of the scaled vehicle bodies is three, and each scaled vehicle body is provided with two scaled suspension frames, and each scaled suspension frame includes two lateral actuating devices and two vertical actuating devices.

[0012] Preferably, the number of the scaled vehicle bodies is three, and four scaled suspension frames are arranged corresponding to the three scaled vehicle bodies, wherein the connection positions of adjacent scaled vehicle bodies share one scaled suspension frame, and each scaled suspension frame includes two lateral actuating devices and four vertical actuating devices.

[0013] Preferably, both ends of the force transmission member are connected to the lower part of the base plate adjacent to the scaled-down vehicle body through a ball joint, and both ends of the longitudinal actuating device are connected to the upper part of the base plate adjacent to the scaled-down vehicle body through a ball joint.

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

[0015] Preferably, the six-degree-of-freedom vibration simulation platform is fixed to the ground mounting plate by T-slot nuts and bolts.

[0016] Preferably, the ground mounting plate is fixed to the ground by nuts and ground anchor bolts.

[0017] Preferably, the longitudinal beam is fixed to the upper surface of the base plate by screwing.

[0018] Preferably, the lateral actuating device mounting seat is fixed to the lower surface of the base plate by screwing.

[0019] Through the above technical scheme, offline test verification can be carried out on the active and semi-active suspension device of a scaled-down single-section car, the active and semi-active suspension device of a scaled-down coupler-connected marshaling car, and the active and semi-active suspension device of a scaled-down articulated-connected marshaling car. The test platform has good safety and effectiveness and is of low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 An exploded view of a single-car mode of a scaled-down active and semi-active suspension device test platform suitable for an electric maglev train according to an embodiment of the present invention is shown; and

[0022] Figure 2 A schematic diagram showing a single-car mode of a scaled-down active and semi-active suspension device test platform applicable to an electric maglev train according to an embodiment of the present invention is shown;

[0023] Figure 3 A schematic diagram of a scaled-down vehicle body according to an embodiment of the present invention is shown;

[0024] Figure 4 A schematic diagram of a scaled-down suspension frame according to an embodiment of the present invention is shown;

[0025] Figure 5 A schematic diagram of a vibration simulation device according to an embodiment of the present invention is shown;

[0026] Figure 6 A schematic diagram showing a three-train coupler connection mode of a scaled-down active and semi-active suspension test platform according to an embodiment of the present invention is shown;

[0027] Fig. 7A and 7B A schematic diagram of vehicle connection in a three-set coupler connection mode according to an embodiment of the present invention is shown;

[0028] Figure 8 A schematic diagram of a three-group articulated connection mode of a scaled-down active and semi-active suspension test platform according to an embodiment of the present invention is shown;

[0029] Fig.9A and 9B A schematic diagram of workshop connection in a three-group articulated connection mode according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0033] like Figure 1-6 As shown, an embodiment of the present invention provides a scaled active and semi-active suspension device test platform suitable for an electric maglev train, wherein the test platform comprises a plurality of scaled car bodies 1, a scaled suspension frame 2, a vibration simulation device 3 and a workshop connection device 4, wherein adjacent scaled car bodies 1 are connected via the workshop connection device 4,

[0034] The scaled vehicle body 1 comprises a base plate 11, a longitudinal beam 12 and a transverse actuator mounting seat 13, wherein 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 frame 2 includes 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 upper part of the frame 24, the lateral actuating device 25 is arranged at the end of the frame 24 and connected to the lateral actuating device mounting seat 13, and the vertical actuating device 27 is arranged at the upper part of the frame 24 and connected to the base plate 11;

[0036] The vibration simulation device 3 includes 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 to the six-degree-of-freedom vibration simulation platform 31 through the mounting adapter 22 .

[0037] Through the above technical scheme, offline test verification can be carried out on the active and semi-active suspension device of a scaled-down single-section car, the active and semi-active suspension device of a scaled-down coupler-connected marshaling car, and the active and semi-active suspension device of a scaled-down articulated-connected marshaling car. The test platform has good safety and effectiveness and is of low cost.

[0038] For example, the scale ratio can be selected between 1:8 and 1:12 according to factors such as site, economy, and size of supporting components, and the present invention is not limited thereto. When the platform is in a single-section vehicle mode, it can include at least one scaled vehicle body, two scaled suspension frames, and one vibration simulation device from top to bottom, such as Figure 1 and 2 shown.

[0039] Among them, the scaled vehicle body is used to simulate the rigid body mode and first-order elastic body mode of the vehicle body, the scaled suspension frame is used to simulate the suspension arrangement and rigid body modal frequency of the suspension frame and is equipped with active and semi-active suspension devices, and the vibration simulation device provides a stable installation foundation for the entire platform while simulating ground disturbances such as unevenness and bridge bending; the scaled vehicle body and the scaled suspension frame are screwed together through the secondary suspension, lateral actuation device and vertical actuation device on the scaled suspension frame, the scaled suspension frame and the vibration simulation device are screwed together through the installation adapter at the bottom of the primary suspension of the scaled suspension frame, and the vibration simulation device is connected to the ground through a ground mounting plate.

[0040] When the test platform is in the marshaling train coupler connection mode, it is composed of at least 2 sets of platform modules in single-car mode. Adjacent scaled car bodies are connected together through workshop connection devices, which are used to simulate the force transmission characteristics between trains. When the test platform is in the marshaling train articulation connection mode, it is composed of at least 2 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, the adjacent scaled car bodies are connected together through workshop connection devices to simulate the force transmission characteristics between trains. When the platform is in the marshaling train mode, the marshaling length can be increased or decreased and the type of workshop connection device can be changed 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, both 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 both 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 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 scale-down verify the active suspension scheme of a three-car coupler-connected train, and can be composed of three single-car mode platforms, and the scaled suspension frame 2 of each platform includes two lateral actuating devices 25 and two vertical actuating devices 27. In this embodiment, the ground mounting plates 32 of the three single-car mode platforms are arranged side by side, and the spacing between the scaled suspension frames 2 and the six-degree-of-freedom vibration simulation platform 31 under 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 actuating devices 41 are respectively connected to the upper part of the scaled car body substrate 11 of the adjacent scaled car body 1 through a ball joint, and the scaled force transmission member 42 simulates the force transmission of the coupler, and the two ends are connected to the lower part of the adjacent scaled car body substrate 11 through a ball joint; the above combination can realize the construction of the active suspension performance simulation platform of the three-car coupler-connected train.

[0044] According to one embodiment of the present invention, alternatively, the number of the scaled vehicle bodies 1 is three, and four scaled suspension frames 2 are correspondingly arranged 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.

[0045] That is, if Figure 8 As shown in Figure 9, this embodiment is used to perform scaled verification on the active suspension scheme of a three-unit articulated train, and may be composed of two single-section vehicle mode platforms and an additional scaled car body 1. The scaled suspension frame 2 of each platform includes two lateral actuators 25 and four vertical actuators 27. In this example, the ground mounting plates 32 of the platforms of the two single-section vehicle modes are arranged side by side, and one end of the scaled car body 1 used in the test platform is connected to two secondary suspensions 26, a lateral actuating device 25 and two vertical actuating devices 27 of the scaled suspension frame 2; the other two secondary suspensions 26, a lateral actuating device 25 and two vertical actuating devices 27 on the scaled suspension frame 2 are connected to the scaled car body 1 added in the middle; at the same time, the scaled car body 1 and the scaled car body 1 added in the middle are connected through a workshop connecting device 4, and the two ends of the two longitudinal actuating devices 41 are respectively connected to the upper part of the scaled car body base plate 11 of the adjacent scaled car body 1 through a ball joint, and the scaled force transmission member 42 simulates the force transmission of the hook, and the two ends are connected to the lower part of the adjacent scaled car body base plate 11 through a ball joint; through the above combination, the construction of an active suspension performance simulation platform for a three-unit articulated train can be realized.

[0046] According to one embodiment of the present invention, both ends of the force transmission member 42 are connected to the lower part of the base plate 11 of the adjacent scaled car body 1 through a ball joint, and both ends of the longitudinal actuating device 41 are connected to the upper part of the base plate 11 of the adjacent scaled car body 1 through a ball joint.

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

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

[0049] According to an embodiment of the present invention, the six-degree-of-freedom vibration simulation platform 31 is fixed to the ground mounting plate 32 by T-slot nuts and bolts.

[0050] According to an embodiment of the present invention, the ground mounting plate 32 is fixed to the ground by nuts and ground anchor bolts.

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

[0052] According to an embodiment of the present invention, the lateral actuation device mounting seat 13 is fixed to the lower surface of the base plate 11 by screwing.

[0053] The scaled-down active and semi-active suspension device test platform applicable to electric maglev trains according to the present invention is described below with reference to examples.

[0054] The scaled car 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 the main load-bearing component of the scaled car body 1, and is provided with mounting interfaces for longitudinal beams 12, scaled suspension frame 2, workshop connection device 4 and other components, each component is screwed to the scaled car body, and its first-order elastic modal frequency is close to that of the actual car body; the longitudinal beam 12 can be an inverted T-shaped section, and the first-order elastic modal frequency of the scaled car body as a whole can be adjusted within the research range by installing longitudinal beams of different section heights; the transverse actuator mounting seat 13 is used to connect with the transverse actuator 25 on the scaled suspension frame 2. The test platform uses the same scaled car body in the single-car mode and the marshalling train coupler connection mode, that is, one set of scaled car bodies is connected to two sets of scaled suspension frames; in the marshalling train articulated connection mode, the two ends of the scaled car bodies at both ends are respectively connected to one set of scaled suspension frames and half a set of scaled suspension frames, and the two ends of the middle scaled car body are respectively connected to two half sets of scaled suspension frames, that is, adjacent scaled car bodies share the same set of suspension frames to achieve articulated marshalling.

[0055] The scaled-down suspension frame 2 comprises a frame 24, 4 magnets 21, 4 primary suspensions 23, 4 secondary suspensions 26, 2 lateral actuators 25, 2 vertical actuators (including 4 vertical actuators in the articulated mode) 27, 2 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-down suspension frame 2, on which mounting interfaces for various components of the scaled-down suspension frame are arranged, and each component is screwed to the scaled-down frame; the 4 magnets 21 are used to control the mass ratio and moment of inertia ratio of the scaled-down suspension frame 2 and the scaled-down vehicle body 1, and are screwed to the frame 24. By setting appropriate stiffness of the scaled-down suspension frame primary suspension and scaled-down suspension frame secondary suspension, the rigid body modal frequency of the platform is close to that of the research object, and the primary suspension and secondary suspension can adjust 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 to the primary suspension of the scaled-down suspension frame, and the other end is connected to the primary suspension of the scaled-down suspension frame. One end is connected to the vibration simulation device; according to the different overall plans of active and semi-active suspension, a maximum of 2 lateral actuators and a maximum of 6 vertical actuators can be installed on the scaled frame. The lateral actuators and vertical actuators can be force, displacement or speed control actuators according to different research plans, or semi-active damping actuators can be selected. The two ends of each actuator are screwed to the scaled vehicle body and the scaled suspension frame through ball joints or rubber joints, and are equipped with a host computer, a controller, a signal collector, a power amplifier, a power supply and other components. The electrical appliances can be configured according to the actual research plan. In order not to confuse the present invention, they will not be repeated here.

[0056] The vibration simulation device 3 includes two six-degree-of-freedom vibration simulation platforms 31 and two ground mounting plates 32. The six-degree-of-freedom vibration simulation platform 31 can adopt the Stewart platform technical solution, which has the advantages of small size, large range of motion, large rigidity, strong bearing capacity, and no accumulation of position error while realizing six-degree-of-freedom motion simulation. The test platform is installed with two six-degree-of-freedom vibration simulation platforms 31 in the single-car mode. In the marshaling train coupler connection mode and the marshaling train articulated connection mode, the number of six-degree-of-freedom vibration simulation platforms 31 is the same as the number of scaled suspension frames 2. The simulation platform can be equipped with separate controller signal collectors, power amplifiers, power supplies and other components, which will not be repeated here in order not to confuse the present invention; the ground mounting plate 32 is the installation base of the entire platform, which is fixed with anchor bolts of nuts and the ground, and has a T-slot on it. It is connected to the six-degree-of-freedom vibration simulation platform 31 with nuts and bolts through the T-slot, and the spacing of the six-degree-of-freedom vibration simulation platform 31 can be adjusted according to the needs of use.

[0057] The workshop connection device 4 includes a force transmission member 42 and two longitudinal actuators 41. The force transmission member 42 can be designed to simulate the force transmission of a hook or a capstan according to research requirements. When simulating the force transmission of a hook, both ends are ball joints or rubber joints, which are screwed to the upper or lower part of the scaled car body 1, and the installation height is adjusted by a gasket; the longitudinal actuator 41 can be installed according to research needs, and a force, displacement or speed control actuator can be selected, or a semi-active damping actuator can be selected. Both ends of each actuator are connected to the scaled car body 1 through a ball joint or a rubber joint.

[0058] It can be seen from the above embodiments that the test platform described in the present invention can conduct qualitative comparative analysis on different control algorithms, sensor layouts, actuator selection, etc. during the design stage of the active and semi-active suspension device of the electric maglev train, support and guide the design, selection and iteration of the scheme, and has excellent safety and effectiveness. At the same time, its cost is only about 1 / 50 to 1 / 100 of the relevant full-size test platforms of domestic wheel-rail trains and electromagnetic maglev trains, and has good economy.

[0059] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A scaled active and semi-active suspension device test platform suitable for electric maglev trains, characterized in that: The test platform comprises a plurality of scaled vehicle bodies (1), a scaled suspension frame (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 actuation device mounting seat (13), wherein the longitudinal beam (12) is arranged on the upper surface of the base plate (11), and the transverse actuation 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); 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 to the six-degree-of-freedom vibration simulation platform (31) via the mounting adapter (22).

2. The test platform according to claim 1, characterized in that: The workshop connection device (4) comprises a longitudinal actuating device (41) and a force transmission member (42), wherein two ends of the force transmission member (42) are connected to the lower part of a base plate (11) adjacent to the scaled vehicle body (1), and two ends of the longitudinal actuating device (41) are connected to the upper part of a base plate (11) adjacent to the scaled vehicle body (1).

3. The test platform according to claim 1, characterized in that: The number of the scaled vehicle bodies (1) is three, and each scaled vehicle body (1) is provided with two scaled suspension frames (2) correspondingly, and each scaled suspension frame (2) comprises two lateral actuating devices (25) and two vertical actuating devices (27).

4. The test platform according to claim 2, characterized in that: The number of the scaled vehicle bodies (1) is three, and four scaled suspension frames (2) are correspondingly arranged 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) comprises two lateral actuating devices (25) and four vertical actuating devices (27).

5. The test platform according to claim 3 or 4, 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.

6. The test platform according to any one of claims 1 to 5, characterized in that: The primary suspension (23) and the secondary suspension (26) use steel springs.

7. The test platform according to any one of claims 1 to 5, 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.

8. The test platform according to any one of claims 1 to 5, characterized in that: The ground mounting plate (32) is fixed on the ground by nuts and ground anchor bolts.

9. The test platform according to any one of claims 1 to 5, characterized in that: The longitudinal beam (12) is fixed to the upper surface of the base plate (11) by screwing.

10. The test platform according to any one of claims 1 to 5, characterized in that: The lateral actuation device mounting seat (13) is fixed to the lower surface of the base plate (11) by screw connection.

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