A hypergravity environment simulator using a lifting device and a test method thereof

Abstract

The present invention proposes a hypergravity environment simulator using a lifting device and a test method thereof, belonging to the technical field of scaled model testing of submerged vehicles. The invention solves the problems of centrifugal technology's difficulty in simulating complex three-dimensional flows, restrictions on the size and shape of test pieces, and the introduction of additional rotational torque during hypergravity scaled model testing. The invention comprises a launch device, a vehicle, and a test device. The test device comprises a small-scale test device or a large-scale test device. The vehicle is disposed in a launch area. The small-scale test device achieves the lifting and lowering of a water tank by a linear motor and control system disposed in a slide elevator. The large-scale lifting device achieves the lifting and lowering of a water tank by a driving device disposed in a towing device, driving a lifting bracket. The invention is mainly used to simulate a hypergravity environment.

Description

Technical Field

[0001] The invention belongs to the technical field of scaled model tests of water-entering navigation bodies, and in particular relates to a hypergravity environment simulator using a lifting device. Background Art

[0002] Currently, the fundamental science behind high-speed water entry similarity criteria needs further refinement, and their development also constrains the development of high-speed water entry equipment. High-speed water entry involves multiphase gas-vapor-liquid-solid interaction and multi-physics coupling. The nonlinear and non-stationary process with strong transients and strong impacts introduces uncertainty. To address the multidisciplinary challenges of water entry, we must first study similarity. Since actual physical testing is impossible, we utilize scaled-down models for testing.

[0003] However, existing scaled-down model tests are constrained by conventional gravity conditions on Earth. This means that scaled-down similarity laws based on decompression tanks can only adhere to the principle of stress and pressure equality. The simulation capability and accuracy of scaled-down model tests are limited by multiple incompatible similarity criteria. To provide more design freedom for model tests, avoid unnecessary test conditions and simulations for large-scale decompression model engineering tests, and more accurately simulate the cavitation and trajectory of prototype vehicles entering the water, existing hypergravity environment simulators primarily use centrifuges. Centrifuge-based hypergravity test systems can achieve inertial force similarity and address the nonlinear and nonstationary dual non-dynamic processes of vehicle entry. They also have the ability to study phase transitions and thermodynamic processes during vehicle entry. A hypergravity centrifuge test system is needed to reconcile the conflict between cavitation number and air density similarity in scaled-down model tests. By achieving structural mechanics similarity in a hypergravity environment while satisfying fluid mechanics similarity, the accuracy of scaled-down model vehicle entry tests can be fully supported. However, centrifugal technology has difficulty simulating complex three-dimensional flows, has limitations on the size and shape of test pieces, and introduces additional rotational torque. For example, the centrifuge will inevitably generate Coriolis force during use. The Coriolis force is an inertial force that only changes the direction of the speed of the moving object, not the speed of the moving object. Therefore, the use of a centrifuge in scaled model tests will affect the test data. Summary of the Invention

[0004] In view of this, the present invention aims to propose a hypergravity environment simulator using a lifting device to solve the problems of centrifugal technology's difficulty in simulating complex three-dimensional flows, restrictions on the size and shape of the test piece, and the introduction of additional rotational torque during hypergravity scale model tests.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a hypergravity environment simulator using a lifting device, which includes a launch device, a vehicle and a test device, wherein the vehicle is arranged in the launch device, and the test device is implemented by using either a small-scale test device or a large-scale test device;

[0006] The small-scale test device includes a small-scale lifting device, a small-scale water tank and a water tank support platform. The small-scale lifting device includes a slide elevator and a small-scale drive device. The small-scale drive device is arranged inside the slide elevator. The launching device is located above the small-scale water tank and is connected to the outside of the slide elevator. The water tank support platform is connected to the small-scale drive device. The small-scale water tank is arranged on the water tank support platform.

[0007] The large-scale test device includes a large water tank fixing device, a large-scale lifting device, a connecting column and a large-scale water tank. The large-scale lifting device includes a lifting bracket and a towing device. The launching device is located above the large-scale water tank. A lifting bracket is provided on each side of the large-scale water tank. The large-scale water tank is fixedly connected to the inner side of the lifting bracket through the water tank fixing device. The outer side of the lifting bracket is engaged with the towing device. The bottom of the towing device is connected to the connecting column. A large-scale driving device is provided in the towing device.

[0008] Furthermore, the launching device includes a launching tube cover, a launching tube, a launching tube support platform, a high-pressure gas cylinder and a solenoid valve. The launching tube support platform is connected to the upper part of the test device. The launching tube is arranged above the launching tube support platform. The air inlet on the side of the launching tube is connected to the high-pressure gas cylinder. The upper part of the launching tube is sealed with the launching tube cover. The solenoid valve is arranged between the high-pressure gas cylinder and the launching tube.

[0009] Furthermore, the vehicle includes a vehicle head, a spring, a vehicle barrel section and a sealing ring. The vehicle head and the vehicle barrel section are connected by a spring. A groove is provided on the outer side of the tail of the vehicle barrel section. The sealing ring is provided in the groove on the outer side of the tail of the vehicle barrel section. The vehicle is frictionally connected to the launch tube through the sealing ring. The shape of the vehicle head is processed into different head shapes according to the test requirements.

[0010] Furthermore, the small-scale driving device includes a linear motor and a control system. The linear motor is connected to the water tank support platform through a guide rail and a slider. The control system controls the vertical movement of the linear motor inside the slide elevator.

[0011] Furthermore, a safety protection system is provided in the slide lift, and the safety protection system includes a limit switch and an emergency stop button.

[0012] Furthermore, a circular hole is provided on the launch tube support platform, and the launch port of the launch tube corresponds to the position of the circular hole.

[0013] Furthermore, the small-scale water tank and the large-scale water tank are both made of acrylic material.

[0014] Furthermore, the large water tank fixing device includes a triangular support frame and a water tank fixing frame, the triangular support frame is arranged below the large-sized water tank, and the water tank fixing frame is arranged above the large-sized water tank.

[0015] Furthermore, an internal measurement system is provided in the barrel section of the navigation body, and the internal measurement system includes a data collector, a pressure sensor, an acceleration sensor, a data acquisition and recording unit and an embedded rechargeable battery pack.

[0016] A test method for a hypergravity environment simulator using a lifting device specifically comprises the following steps:

[0017] S1: Select a small-scale test device or a large-scale test device according to the test requirements, fill the water tank with water and secure it, then raise and lower the launch area and water tank to the required test height;

[0018] S2: If a small-scale test device is selected, the small-scale drive device set in the slide lift drives the water tank support platform to move upward with uniform acceleration. If a large-scale test device is selected, the drive mechanism set in the towing device drives the towing device to rotate, and the lifting bracket is driven to move through gear meshing, thereby causing the large-scale water tank to move upward with uniform acceleration.

[0019] S3: The solenoid valve is activated to discharge the gas in the high-pressure gas cylinder into the launch tube, steadily pushing the vehicle out of the tube. After leaving the tube, the vehicle continues to move, and the water tank continues to move upward with uniform acceleration until the vehicle enters the water. The water tank stops rising, and the internal measurement system in the tube section of the vehicle completes data monitoring.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention utilizes a lifting device under hypergravity, which not only avoids the additional rotational torque introduced by the hypergravity centrifuge in the prior art, namely the Coriolis force generated by the hypergravity centrifuge, but also utilizes the hypergravity system using the lifting device to simulate complex three-dimensional flows, thus avoiding the constraints of conventional gravity conditions on Earth in the scaled-down model test of the vehicle. This makes the scaled-down similarity law of the vehicle based on the decompression tank not only limited to the principle of equality of stress and pressure, but also the simulation capability and accuracy of the scaled-down model test are subject to the problem of incompatibility of multiple similarity criteria. This breaks away from the existing similarity theory system, provides more design freedom for model tests, and establishes an advanced R&D system in which the hypergravity hydrodynamic test system and the full-scale engineering decompression ratio test system complement each other.

[0022] 2. In this invention, the vehicle is divided into two parts, upper and lower. To study the interaction between the deformation of the cross-medium structure and the free liquid surface under scaled conditions, a variable-stiffness spring is used to simulate the stiffness characteristics of the surface deformation. During the water entry process, attached cavitation bubbles are generated on the upper and lower conical surfaces of the vehicle model. The relative position change of the two parts of the model affects the cavitation morphology and the area of ​​the model's wetted area, thereby affecting the fluid resistance.

[0023] 3. The test device of the present invention adopts a small-scale test device or a large-scale test device. The two sets of test devices are designed with different scale model stiffness characteristics, which solves the limitations of centrifugal technology on the size and shape of the test piece, and accurately measures the model mass and stiffness before the test, assisting in studying the coupling mechanism between the deformation and fragmentation of the water-entering structure and the attached cavitation, and providing accurate model test support for the dynamic response of the high-speed water-entering strong impact structure and the design of load reduction schemes.

[0024] 4. The present invention provides a spring in the vehicle to simulate the process change of solid-liquid coupling when the vehicle enters the water at high speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the axial structure of a small-scale test device of a hypergravity environment simulator using a lifting device according to the present invention;

[0027] Figure 2 This is an exploded view of a small-scale test device of a hypergravity environment simulator using a lifting device according to the present invention;

[0028] Figure 3 This is a schematic diagram of the axial structure of a large-scale test device for a hypergravity environment simulator using a lifting device according to the present invention;

[0029] Figure 4 This is an exploded view of a large-scale test device for a hypergravity environment simulator using a lifting device according to the present invention:

[0030] Figure 5 This is a front structural schematic diagram of a small-scale test device for a hypergravity environment simulator using a lifting device according to the present invention;

[0031] Figure 6 This is a side structural diagram of a small-scale test device of a hypergravity environment simulator using a lifting device according to the present invention;

[0032] Figure 7This is a schematic cross-sectional view of a small-scale test device for a hypergravity environment simulator using a lifting device according to the present invention;

[0033] Figure 8 This is a front structural schematic diagram of a large-scale test device for a hypergravity environment simulator using a lifting device according to the present invention;

[0034] Figure 9 This is a schematic cross-sectional view of a large-scale test device for a hypergravity environment simulator using a lifting device according to the present invention;

[0035] Figure 10 This is a side structural diagram of a large-scale test device for a hypergravity environment simulator using a lifting device according to the present invention;

[0036] Figure 11 This is a structural diagram of a lifting bracket of a hypergravity environment simulator using a lifting device and a swaying device in a large-scale test area according to the present invention.

[0037] Figure 12 This is a front structural schematic diagram of a launch tube in a hypergravity environment simulator using a lifting device according to the present invention;

[0038] Figure 13 This is a schematic cross-sectional view of a launch tube in a hypergravity environment simulator using a lifting device according to the present invention;

[0039] Figure 14 This is a schematic diagram of the front structure of a vehicle in a hypergravity environment simulator using a lifting device according to the present invention;

[0040] Figure 15 The figure is a schematic diagram of the cross-sectional structure of a vehicle in a hypergravity environment simulator using a lifting device according to the present invention.

[0041] In the picture:

[0042] 1. Slide lift; 2. Launch tube cover; 3. Launch tube; 4. Launch tube support platform; 5. Small-scale water tank; 6. Water tank support platform; 7. Vehicle head; 8. Spring; 9. Vehicle tube section; 10. Sealing ring; 11. High-pressure gas cylinder; 12. Solenoid valve; 13. Water tank fixing bracket; 14. Lifting bracket; 15. Triangular support bracket; 16. Towing device; 17. Connecting column; 18. Large-scale water tank. DETAILED DESCRIPTION

[0043] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features therein can be combined with each other in the absence of conflict, and the embodiments described are only part of the embodiments of the present invention, not all of the embodiments.

[0044] The present invention proposes a hypergravity environment simulator using a lifting device to solve the problems of centrifugal technology's difficulty in simulating complex three-dimensional flows, restrictions on the size and shape of test pieces, and the introduction of additional rotational torque during hypergravity scale model tests.

[0045] See also Figure 1-10 This embodiment describes a hypergravity environment simulator using a lifting device during a hypergravity scale test. The simulator includes a launch area, a vehicle, and a test device. The vehicle is disposed within the launch area. The test device is implemented using either a small-scale test device or a large-scale test device. The small-scale test device has a load capacity of 100 kg. If the load capacity exceeds 100 kg, a large-scale test device is used.

[0046] The small-scale test device includes a small-scale lifting device, a small-scale water tank launching device 5 launching device and a water tank support platform launching device 6 launching device. The small-scale lifting device includes a slide elevator launching device 1 launching device and a small-scale driving device. The small-scale driving device is arranged inside the slide elevator 1. The small-scale driving device can move vertically inside the slide elevator 1 structure. The small-scale driving device can achieve precise control and data collection of the water tank support platform 6 and the launching area. The launching device is located above the small-scale water tank 5 and is connected to the outside of the slide elevator 1. The water tank support platform 6 is connected to the small-scale driving device. The small-scale water tank 5 is arranged on the water tank support platform 6. The small-scale driving device drives the water tank support platform 6 to achieve lifting;

[0047] The large-scale test device includes a large water tank fixing device, a large-scale lifting device, a connecting column 17 and a large-scale water tank 18. The large-scale lifting device includes a lifting bracket 14 and a towing device 16. The launching device is located above the large-scale water tank 18 and is connected to the connecting column 17. A lifting bracket 14 is provided on each side of the large-scale water tank 18. The large-scale water tank 18 is fixedly connected to the inner side of the lifting bracket 14 through a water tank fixing device. The large water tank fixing device is used to prevent the large-scale water tank 18 from detaching during startup and sudden stop. The outer side of the lifting bracket 14 is engaged with the towing device 16, and the bottom of the towing device 16 is connected to the connecting column 17. A large-scale driving device is provided in the towing device 16. The large-scale driving device provided in the towing device 16 drives the towing device 16 to rotate. The towing device 16 drives the lifting bracket 14 to rise and fall by engaging with the lifting bracket 14, thereby driving the large-scale water tank 18 connected to the lifting bracket 14 to rise and fall;

[0048] The present invention designs two sets of test devices for gravity scale model tests of different scales, namely a small-scale test device and a large-scale test device. The test device can be selected according to the test requirements. Both the small-scale test device and the large-scale test device are provided with corresponding lifting devices and water tank fixing devices. Before the test of the small-scale test device, the launch area and the water tank support platform 6 need to be connected to the slide elevator 1, and the water tank support platform 6 is controlled by a small-scale driving device arranged in the slide elevator 1 to realize the lifting and lowering of the water tank support platform 6. Before the test of the large-scale test device, the launch area needs to be fixed. In this embodiment, the launch area is fixed to the upper part of the connecting column 17, and the large-scale water tank 18 is fixed to the lifting bracket 14 through the large-scale water tank fixing device. The lifting bracket 14 is engaged with the towing device 16 through gears, and the bottom of the towing device 16 is connected to the connecting column 17. The driving device arranged in the towing device 16 drives the towing device 16 to rotate, and the towing device 16 drives the lifting bracket 14 to rise and fall through gear engagement, thereby driving the large-scale water tank 18 to rise and fall.

[0049] See also Figure 12-13 To illustrate this embodiment, the launch device includes a launch tube cover 2, a launch tube 3, a launch tube support platform 4, a high-pressure gas cylinder 11 and a solenoid valve 12. The launch tube support platform 4 is connected to the upper part of the test device. The launch tube 3 is arranged above the launch tube support platform 4. The side air inlet of the launch tube 3 is connected to the high-pressure gas cylinder 11. The launch tube cover 2 has a sealing groove, so that the upper part of the launch tube 3 is sealed and connected to the launch tube cover 2 to prevent air leakage when the vehicle is launched. The solenoid valve 12 is arranged between the high-pressure gas cylinder 11 and the launch tube 3.

[0050] See also Figure 14-15To illustrate this embodiment, the vehicle includes a vehicle head 7, a spring 8, a vehicle barrel section 9 and a sealing ring 10. The vehicle head 7 and the vehicle barrel section 9 are connected by a spring 8. A groove is provided on the outer side of the tail of the vehicle barrel section 9. The sealing ring 10 is provided in the groove on the outer side of the tail of the vehicle barrel section 9. The vehicle is frictionally connected to the launch tube 3 by the sealing ring 10 to prevent the vehicle from falling out of the launch tube 3 before the test. The outer shape of the vehicle head 7 is processed into different head shapes according to the test requirements. The actual structure will experience solid-liquid coupling when entering the water. During the scaled-down test, the small model with reduced scale cannot be reduced in size due to the material stiffness. Therefore, a spring 8 is added to simulate the solid-liquid coupling that occurs when the vehicle enters the water.

[0051] The small-scale driving device includes a linear motor and a control system. The linear motor is connected to the water tank support platform 6 through a guide rail and a slider. The control system controls the vertical movement of the linear motor inside the slide elevator 1. The linear motor and the control system realize precise control and data acquisition of the water tank support platform 6 and the launch tube support platform 4.

[0052] A safety protection system is provided in the slide lift 1, and the safety protection system includes a limit switch and an emergency stop button, which can ensure the safe operation of the equipment.

[0053] The launch tube support platform 4 is provided with a circular hole, the launch port of the launch tube 3 corresponds to the position of the circular hole, and the navigation body can fall from the circular hole on the launch tube support platform 4.

[0054] The small-scale water tank 5 and the large-scale water tank 18 are both made of acrylic materials, so as to observe the process of the test vehicle entering the water and the process of the elastic structure transformation of the vehicle.

[0055] The large water tank fixing device includes a triangular support frame 15 and a water tank fixing frame 13. The triangular support frame 15 is arranged below the large-scale water tank 18. The triangular support frame 15 is connected to the lifting bracket 14 by bolts. Then the large-scale water tank 18 is placed on the supporting surface of the triangular support frame 15 and connected by bolts. The water tank fixing frame 13 is arranged above the large-scale water tank 18. The water tank fixing frame 13 is connected to the lifting bracket 14 by bolts. The triangular support frame 15 and the water tank fixing frame 13 prevent the large-scale water tank 18 from detaching during startup or sudden stop.

[0056] An internal measurement system is provided in the vessel barrel section 9, and the internal measurement system includes a data collector, a pressure sensor, an acceleration sensor, a data acquisition and recording unit and an embedded rechargeable battery pack for monitoring test data.

[0057] A test method for a hypergravity environment simulator using a lifting device specifically comprises the following steps:

[0058] S1: Select a small-scale test device or a large-scale test device according to the test requirements, fill the water tank with water and secure it, then raise and lower the launch area and water tank to the required test height;

[0059] S2: If a small-scale test device is selected, the small-scale drive device provided in the slide lift 1 drives the water tank support platform 6 to move upward with uniform acceleration. If a large-scale test device is selected, the drive mechanism provided in the towing device 16 drives the towing device 16 to rotate, and drives the lifting bracket 14 to move through gear meshing, thereby causing the large-scale water tank 18 to move upward with uniform acceleration.

[0060] S3: Activate the solenoid valve 12 to discharge the gas in the high-pressure gas cylinder 11 into the launch tube 3 to steadily push the vehicle out of the tube. After the vehicle is out of the tube, it continues to move, and the water tank continues to move upward with uniform acceleration until the vehicle enters the water. The water tank stops rising, and the internal measurement system in the vehicle tube section 9 completes data monitoring.

[0061] Example 1: Select a small-scale test device, connect the water tank support platform 6 and the launch tube support platform 4 to the slide elevator 1 through bolts respectively, fill the small-scale water tank 5 with water and install it on the water tank support platform 6, select the appropriate vehicle head 7 and vehicle barrel section 9 according to the test requirements, install the internal measurement system in the vehicle barrel section 9, and then connect the spring 8 to the vehicle head 7 and the vehicle barrel section 9 respectively to complete the installation of the vehicle, install the vehicle into the launch tube 3, and the vehicle and the launch tube 3 are fixed by friction through the sealing ring 10 at the tail of the vehicle barrel section 9. The sealing ring 10 is oiled to reduce the test error caused by friction, and then the launch tube cover 2 is connected to the launch tube 3. The launch tube 3 is connected with the high-pressure gas cylinder 11 and the solenoid valve 12 through bolts, and then the launch tube 3 and the high-pressure gas cylinder 11 are fixed on the launch tube support platform 4. The water tank support platform 6 and the launch tube support platform 4 are lifted and lowered to the required test area. After the test starts, the water tank support platform 4 is uniformly accelerated upward through the small-scale lifting device, and the solenoid valve 12 is stimulated. The gas in the high-pressure gas cylinder 11 is discharged from the high-pressure gas cylinder 11 into the launch tube 3. After stabilization, the vehicle is pushed out of the tube. The vehicle continues to move after leaving the tube, and the water tank support platform 6 continues to move upward with uniform acceleration until the vehicle enters the water. The small-scale water tank 5 stops rising, and the internal measurement system in the vehicle barrel section 9 completes data monitoring.

[0062] Example 2: Select a large-scale test device, connect the triangular support frame 15 to the lifting bracket 14 through bolts, then put the large-scale water tank 18 on the supporting surface of the triangular support frame 15 and connect it through bolts, set a water tank fixing frame 13 above the water tank, the water tank fixing frame 13 is connected to the lifting bracket 14 through bolts, the lifting bracket 14 is meshed with the towing device 16 through gears, and the bottom of the towing device 16 is connected to the connecting column 17. According to the test requirements, select the appropriate vehicle head 7 and vehicle barrel section 9, install the internal measurement system in the vehicle barrel section 9, and then connect the spring 8 to the vehicle head 7 and the vehicle barrel section 9 respectively to complete the installation of the vehicle. The vehicle is installed in the launch tube 3, and the vehicle and the launch tube 3 are fixed by friction through the sealing ring 10 at the tail of the vehicle barrel section 9. The sealing ring 10 is oiled to reduce In order to reduce the test error caused by friction, the launch tube cover 2 is connected to the launch tube 3 by bolts, and then the launch tube 3 is connected to the high-pressure gas cylinder 11 and the solenoid valve 12, and then the launch tube 3 and the high-pressure gas cylinder 11 are fixed on the launch tube support platform 4, and the launch tube support platform 4 is placed above the large-scale water tank 18 and connected to the connecting column 17. The large-scale water tank 18 is lifted to the predetermined area through the large-scale lifting device, and the large-scale water tank 18 is uniformly accelerated to move upward through the large-scale lifting device, and the solenoid valve 12 is stimulated to discharge the gas from the high-pressure gas cylinder into the launch tube 3. After stabilization, the vehicle is pushed out of the tube, and the vehicle continues to move after leaving the tube. The large-scale water tank 18 continues to move upward at a uniform acceleration until the vehicle entering the water process is completed, the large-scale water tank 18 stops rising, and the internal measurement system in the vehicle tube section 9 completes data monitoring.

[0063] The present invention designs a hypergravity environment simulation device that uses a lifting device instead of a centrifuge, thereby solving the problem that centrifugal technology is difficult to simulate complex three-dimensional flows during hypergravity scale model tests. By providing two sets of devices of different sizes, the limitations on the size and shape of the test piece are overcome, and the vertical movement of the lifting device overcomes the limitation of the centrifuge introducing additional rotational torque.

[0064] The embodiments of the present invention disclosed above are intended only to illustrate the present invention. The embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A test method for a hypergravity environment simulator using a lifting device, characterized by: The hypergravity environment simulator includes a launch device, a vehicle and a test device. The vehicle is arranged in the launch device, and the test device is implemented by using either a small-scale test device or a large-scale test device. The small-scale test device comprises a small-scale lifting device, a small-scale water tank (5) and a water tank support platform (6); the small-scale lifting device comprises a slide elevator (1) and a small-scale driving device; the small-scale driving device is arranged inside the slide elevator (1); the launching device is located above the small-scale water tank (5) and is connected to the outside of the slide elevator (1); the water tank support platform (6) is connected to the small-scale driving device; and the small-scale water tank (5) is arranged on the water tank support platform (6); The large-scale test device comprises a large water tank fixing device, a large-scale lifting device, a connecting column (17) and a large-scale water tank (18); the large-scale lifting device comprises a lifting bracket (14) and a towing device (16); the launching device is located above the large-scale water tank (18) and is connected to the connecting column (17); a lifting bracket (14) is provided on each side of the large-scale water tank (18); the large-scale water tank (18) is fixedly connected to the inner side of the lifting bracket (14) through the water tank fixing device; the outer side of the lifting bracket (14) is meshed and connected to the towing device (16); the bottom of the towing device (16) is connected to the connecting column (17); and a large-scale driving device is provided in the towing device (16); The test method of the hypergravity environment simulator comprises the following steps: S1: Select a small-scale test device or a large-scale test device according to the test requirements, fill the water tank with water and fix it, then raise and lower the launch device and water tank to the required test height; S2: If a small-scale test device is selected, the small-scale driving device provided in the slide lift (1) drives the water tank support platform (6) to move upward with uniform acceleration. If a large-scale test device is selected, the large-scale driving device provided in the towing device (16) drives the towing device (16) to rotate, and drives the lifting bracket (14) to move through gear meshing, thereby causing the large-scale water tank (18) to move upward with uniform acceleration. S3: The electromagnetic valve (12) is activated to discharge the gas in the high-pressure gas cylinder (11) into the launch tube (3) to steadily push the vehicle out of the tube. After the vehicle is out of the tube, it continues to move, and the water tank continues to move upward with uniform acceleration until the vehicle enters the water. The water tank stops rising, and the internal measurement system in the vehicle tube section (9) completes data monitoring.

2. The method for testing a hypergravity environment simulator using a lifting device according to claim 1, characterized in that: The launching device comprises a launching tube cover plate (2), a launching tube (3), a launching tube support platform (4), a high-pressure gas cylinder (11) and a solenoid valve (12), wherein the launching tube support platform (4) is connected to the upper part of the test device, the launching tube (3) is arranged above the launching tube support platform (4), the air inlet on the side of the launching tube (3) is connected to the high-pressure gas cylinder (11), the upper part of the launching tube (3) is sealed and connected to the launching tube cover plate (2), and the solenoid valve (12) is arranged between the high-pressure gas cylinder (11) and the launching tube (3).

3. The method for testing a hypergravity environment simulator using a lifting device according to claim 1, characterized in that: The navigation body comprises a navigation body head (7), a spring (8), a navigation body barrel section (9) and a sealing ring (10), wherein the navigation body head (7) and the navigation body barrel section (9) are connected via the spring (8), a groove is provided on the outer side of the tail of the navigation body barrel section (9), and the sealing ring (10) is provided in the groove on the outer side of the tail of the navigation body barrel section (9), and the navigation body is frictionally connected to the launch tube (3) via the sealing ring (10), and the outer shape of the navigation body head (7) is processed into different head shapes according to test requirements.

4. The method for testing a hypergravity environment simulator using a lifting device according to claim 1, characterized in that: The small-scale driving device comprises a linear motor and a control system, wherein the linear motor is connected to the water tank support platform (6) via a guide rail and a slider, and the control system controls the vertical movement of the linear motor inside the slide elevator (1).

5. The method for testing a hypergravity environment simulator using a lifting device according to claim 1, characterized in that: A safety protection system is provided in the slide lift (1), and the safety protection system includes a limit switch and an emergency stop button.

6. The method for testing a hypergravity environment simulator using a lifting device according to claim 2, characterized in that: The launch tube support platform (4) is provided with a circular hole, and the launch port of the launch tube (3) corresponds to the position of the circular hole.

7. The method for testing a hypergravity environment simulator using a lifting device according to claim 1, characterized in that: The small-scale water tank (5) and the large-scale water tank (18) are both made of acrylic material.

8. The method for testing a hypergravity environment simulator using a lifting device according to claim 1, characterized in that: The large water tank fixing device comprises a triangular support frame (15) and a water tank fixing frame (13), wherein the triangular support frame (15) is arranged below the large-scale water tank (18), and the water tank fixing frame (13) is arranged above the large-scale water tank (18).

9. The method for testing a hypergravity environment simulator using a lifting device according to claim 3, characterized in that: An internal measurement system is provided in the navigation body barrel section (9), and the internal measurement system comprises a data collector, a pressure sensor, an acceleration sensor, a data acquisition and recording unit, and an embedded rechargeable battery pack.

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