A dynamic environment simulation test device for underwater vehicles

Abstract

This invention discloses a dynamic environment simulation test device for underwater vehicles, comprising: a water storage tank and a test chamber. The test chamber is equipped with a mounting assembly for mounting the underwater vehicle. The mounting assembly is equipped with a measuring mechanism for measuring the rudder angle change of the underwater vehicle and a limiting mechanism for restricting the movement of the underwater vehicle. This test device uses a follow-up measuring mechanism to dynamically measure the deflection angles of the underwater vehicle when affected by water flow. Compared with the existing method of adjusting the rudder angle of the underwater vehicle by a motor, it can better reflect the interaction between the underwater vehicle and the water flow in the simulated environment and the resulting real-time deflection effect. In addition, the limiting mechanism restricts the movement of the underwater vehicle, avoiding safety accidents caused by excessive rotation angle of the underwater vehicle during the test.

Description

Technical Field

[0001] This invention relates to the field of underwater vehicle testing equipment technology, specifically to an underwater vehicle dynamic environment simulation testing device. Background Technology

[0002] Based on the analysis of underwater vehicle testing environments, underwater vehicle testing can be divided into laboratory testing, lake testing, and sea testing. Laboratory testing is the foundation of product development testing; the product's external design, partial structural design, some performance parameters, and preliminary product testing can all be conducted on laboratory testing equipment. Laboratory testing is characterized by short testing cycles, rapid data feedback, high efficiency, comprehensive parameter testing, and low cost. However, it also has some drawbacks, such as difficulty in dynamic parameter testing and low environmental simulation fidelity. Therefore, after various laboratory tests and parameter finalization, lake or sea testing is necessary to ultimately verify the product's actual performance. The laboratory testing phase is crucial in product design and production, and is an indispensable part of the product development process.

[0003] During the development of underwater vehicles, it is necessary to conduct real-time testing, verification, and modification of their structural parameters and motion performance to make their design more rational. There are various methods and equipment for testing underwater vehicles. Commonly used methods include circulating water tanks, vertical plane motion testing mechanisms, water tunnels, and towing tanks. Circulating water tanks can be used to conduct resistance, propulsion, and maneuverability tests on various surface boat models, as well as open-water experiments on propeller models. Vertical plane motion testing mechanisms can determine the hydrodynamic coefficients of various submersible models. Water tunnels are a type of hydrodynamic experimental equipment used to study phenomena such as boundary layers, wakes, turbulence, cavitation, and hydroelasticity, as well as the forces between water flow and underwater vehicles. A water tunnel is also a water circulation system where flow velocity and pressure can be controlled separately. The test section of a water tunnel can be circular, square, or rectangular. Observation windows are located at the top, bottom, front, and rear of the water tunnel. In contrast to towing tanks, what moves in a water tunnel is not an underwater vehicle, but a controlled water flow. The towed pool is a test subject that is moved by a towing device, and various measuring equipment is used to test the parameters of the test subject.

[0004] A typical water tunnel consists of a stabilizing section, a honeycomb structure, a damping net, a contraction section, an experimental section, a diffusion section, and a power system. Water tunnel structures can be divided into two types: one is a vertical water tunnel, where water flows from the stabilizing section through the contraction section into the experimental section by gravity; this is called a gravity-type water tunnel or a free-fall water tunnel. The other type is a return-flow water tunnel, where the stabilizing and diffusion sections are connected by a return pipe to form a circulation loop.

[0005] A recirculating water tunnel system basically consists of several parts, including a drive pump, a stabilizing section, a contraction section, an experimental section, a diverging section, a return section, and four corner pipes. The experimental section is the flow field space for conducting experiments, used to place experimental models and observe experimental phenomena. The contraction section, located before the experimental section, is a pipe with a continuously decreasing cross-sectional area along the flow direction; its main function is to uniformly accelerate the water flow and reduce turbulence. The diverging section, conversely, is a pipe with an expanding cross-sectional area located after the experimental section, used to convert some of the dynamic pressure of the high-speed water flow into static pressure, reducing water velocity and thus minimizing pressure loss. The four corner pipes realize water circulation and are crucial components of the water tunnel, significantly affecting pressure loss and flow uniformity. The drive pump is the power source for the entire water tunnel. The water tunnel also has corresponding measurement and control systems and flow field display systems, among other auxiliary equipment. As a relatively common type of equipment, the recirculating water tunnel considers the quality and control of water flow simulation extensively, resulting in a complex system design, large size, and high cost. In fact, some underwater vehicle products do not require such comprehensive requirements for underwater testing, but there are special requirements in certain details.

[0006] In the test section, the underwater vehicle is usually tested using a fixed structure (the underwater vehicle is rotated by a motor-driven structure). It is generally facing the direction of the water flow. Since the attitude of the underwater vehicle in three degrees of freedom is simulated by the motor during the test, the parameters measured during the test are usually the rudder angle of the underwater vehicle under a certain motor parameter. To a large extent, it cannot reflect the real-time impact of the water flow on the underwater vehicle in the simulated environment. Its measured parameters are quite different from the actual lake and sea environment. Summary of the Invention

[0007] To address the aforementioned issues, the inventors have provided a method that can realistically reflect the impact of water flow on the pitch, roll, and turn angles of an underwater vehicle under simulated conditions, thus meeting experimental requirements.

[0008] Specifically, the present invention is implemented as follows:

[0009] A dynamic environment simulation test device for underwater vehicles includes:

[0010] Water storage tank;

[0011] Experimental chamber;

[0012] A mounting assembly, located inside the test chamber, is used to install the underwater vehicle.

[0013] A measuring mechanism is mounted on the mounting assembly and configured to move in accordance with the movement of the underwater vehicle, for real-time measurement of the rudder angle change of the underwater vehicle;

[0014] A limiting mechanism is fixedly installed on the mounting assembly to restrict the movement of the underwater vehicle.

[0015] Furthermore, the mounting component includes:

[0016] A slide rail is located at the top of the test chamber;

[0017] The mounting bracket is slidably connected to the slide rail;

[0018] The gantry, connected to the mounting bracket, is used to mount an underwater vehicle.

[0019] Furthermore, the measuring mechanism includes:

[0020] The pitch measurement component is configured to rotate with the underwater vehicle about its longitudinal axis and is used to measure the pitch angle of the underwater vehicle.

[0021] The roll measurement component is configured to rotate with the underwater vehicle's rotation about its transverse axis, and is used to measure the roll angle of the underwater vehicle.

[0022] A horizontal measuring component is configured to rotate with the underwater vehicle's rotation about its vertical axis, and is used to measure the horizontal rotation angle of the underwater vehicle.

[0023] Furthermore, the pitch measurement component includes:

[0024] The tilt axis is longitudinally arranged on the mounting bracket;

[0025] The tilt bracket has one end fitted onto the tilt shaft and the other end fixedly connected to the tilt measuring assembly;

[0026] A pitch position sensor, mounted on the mounting bracket, is used to measure the pitch angle of an underwater vehicle.

[0027] The tilt measurement component includes:

[0028] The tilt axis is arranged laterally on the tilt bracket and connected to the horizontal measuring component through the tilt bracket.

[0029] A pitch position sensor is mounted on the tilt trunnion; used to measure the tilt angle of an underwater vehicle.

[0030] The horizontal measurement component includes:

[0031] A vertical axis is vertically arranged on the tilting lug and connected to the hanger;

[0032] A horizontal position sensor, located inside the tilting lug, is used to measure the horizontal rotation angle of the underwater vehicle.

[0033] Furthermore, the limiting mechanism includes:

[0034] A pitch limiting component, mounted on the mounting bracket, is used to limit the pitch angle of the underwater vehicle.

[0035] A roll limiting component, mounted on the mounting bracket, is used to limit the roll angle of the underwater vehicle.

[0036] A horizontal limiting component is provided on the tilt limiting component to limit the horizontal rotation angle of the underwater vehicle.

[0037] Furthermore, the tilt limiting component includes:

[0038] Two first limiting plates are fixed on both sides of the hanging bracket, respectively;

[0039] Two second limiting plates are fixed on the tilting bracket, and the upper part of the second limiting plate is provided with a tilting limiting plate facing the first limiting plate; the lowest point of the second limiting plate is lower than the highest point of the bracket.

[0040] The horizontal limiting component consists of multiple limiting posts located inside the second limiting plate.

[0041] Furthermore, the experimental setup also includes:

[0042] The water injection buffer tank has one end connected to the water storage tank and the other end connected to the water inlet of the test tank.

[0043] A water outlet buffer chamber, one end of which is connected to the water outlet of the test chamber;

[0044] A noise reduction component is installed in the water injection buffer tank and the water outlet buffer tank to reduce noise;

[0045] The water storage tank is provided in multiple sets, and the height of each set of the water storage tank is higher than that of the test tank.

[0046] Furthermore, the noise reduction component includes:

[0047] End plate, located inside the water injection buffer chamber / water outlet buffer chamber;

[0048] An array of water passage holes is provided on the end plate;

[0049] An array of noise-absorbing components is disposed on the end plate.

[0050] Furthermore, the experimental setup also includes:

[0051] A flow guiding component is located inside the test chamber and is configured to have an adjustable flow guiding angle.

[0052] Furthermore, the flow guiding component includes:

[0053] The test stand is mounted on the side wall of the test chamber;

[0054] A flow deflector is installed on the side of the test bench near the interior of the test chamber in an adjustable manner.

[0055] Working principle of the invention:

[0056] During the test, the underwater vehicle is mounted inside the test chamber via a mounting assembly. Because the water storage tank is higher than the test chamber, free-fall water filling is possible. Noise reduction components in the water filling and exiting buffer tanks are used to reduce environmental noise. Once the water flow inside the test chamber stabilizes, the test can begin.

[0057] After parameters such as water pressure and flow velocity in the test chamber are set, the underwater vehicle installed in the middle of the test chamber will deflect due to changes in the water flow. By using the pitch measurement component, roll measurement component, and level measurement component, the rotational parameters of the underwater vehicle in the three degrees of freedom can be dynamically measured. Dynamic data of the underwater vehicle affected by the water flow under simulated environment can be obtained, providing data support for the experiment.

[0058] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0059] (1) The test device provided by the present invention uses a follow-up measuring mechanism to dynamically measure the rudder angle change of an underwater vehicle, providing data support for the test.

[0060] (2) The measuring mechanism adopts a follow-up method, which can dynamically measure the deflection angles of the underwater vehicle when affected by the water flow. Compared with the existing method of adjusting the rudder angle of the underwater vehicle by motor, it can better reflect the interaction between the underwater vehicle and the water flow in the simulated environment and the real-time deflection effect.

[0061] (3) Use a limiting mechanism to limit the movement of the underwater vehicle to avoid safety accidents caused by excessive rotation angle of the underwater vehicle during the test. Attached Figure Description

[0062] Figure 1 This is a schematic diagram of the underwater vehicle dynamic environment simulation test device in this application;

[0063] Figure 2 This is a perspective view of the underwater vehicle dynamic environment simulation test device in this application;

[0064] Figure 3 This is a perspective view of the water injection buffer tank in this application;

[0065] Figure 4 This is a partial schematic diagram of the outlet buffer tank in this application;

[0066] Figure 5 This is a schematic diagram of the flow guiding component in this application;

[0067] Figure 6 This is a schematic diagram of the measuring mechanism in Example 1;

[0068] Figure 7 This is a partial schematic diagram of the measuring mechanism in Example 1;

[0069] Figure 8 This is a schematic diagram of the internal structure of the measuring mechanism in Example 1;

[0070] Figure 9 This is a side view of the measuring mechanism in Example 1;

[0071] Figure 10 This is a top view of the measuring mechanism in Example 1.

[0072] Figure label:

[0073] 11-High-level water storage tank; 12-Low-level water storage tank; 13-Valve; 2-Water injection buffer tank; 3-Test tank; 31-Tie rod; 4-Water outlet buffer tank; 5-Noise reduction component; 51-End plate; 52-Conical silencer; 53-Water passage hole; 6-Hanging component; 61-Slide rail; 62-Hanging bracket; 63-Roller; 64-Hanging bracket; 65-Hanging ring; 7-Measuring mechanism; 711-Tilting shaft; 712-Tilting lug; 713-Tilting position sensor; 721- 722-Tilting shaft; 723-Tilting position sensor; 731-Vertical shaft; 732-Horizontal position sensor; 74-Mounting bracket; 751-Tilting limit assembly; 752-First limit plate; 753-Second limit plate; 754-Tilting limit plate; 755-Limiting post; 8-Flow guide assembly; 81-Outer platform; 82-Inner platform; 83-Flow guide plate; 84-Slider; 85-Slide groove; 86-Screw; 87-Busset; 9-Underwater vehicle. Detailed Implementation

[0074] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0075] Example 1

[0076] like Figure 1-2As shown, this invention provides a dynamic environment simulation test device for underwater vehicles, comprising: a water storage tank, a water injection buffer tank 2, a test tank 3, and a water outlet buffer tank 4 connected sequentially along the water flow direction. Multiple sets of water storage tanks are provided, and the number used is selected according to actual test needs. For clarity and brevity, only one set is shown in the accompanying drawings. Each set consists of a high-level water storage tank 11 and a low-level water storage tank 11. The choice between filling the high-level or low-level water storage tank 11 with water is made according to actual needs. Valves 13 are installed on the pipelines connecting the high-level and low-level water storage tanks 11 and the water injection buffer tank 2. The valve 13 at the water inlet of the water injection buffer tank 2 is a flow control valve to control the water flow rate during the test. The heights of the high-level and low-level water storage tanks 11 are both higher than the height of the test tank 3, allowing water in the storage tanks to fall freely into the test tank 3, thus reducing the need for a water pump. The pressure generated by the height difference corresponds to the pressure at a certain depth underwater, which is equivalent to the depth position of the underwater vehicle 9. Depending on the different requirements for the simulated depth of the underwater vehicle 9, multiple water storage tanks at different heights are configured.

[0077] Furthermore, such as Figure 3-4 As shown, noise reduction components 5 are installed in both the water injection buffer tank 2 and the water outlet buffer tank 4. Each noise reduction component 5 includes an end plate 51, a water passage array on the end plate 51, and a silencer array. The water passage array consists of multiple circular water passages 53 arranged for water to pass through. The silencer array consists of multiple conical silencers 52 arranged and made of sound-absorbing material. By reducing the number of water pumps and increasing the noise reduction components 5, environmental noise transmitted into the test tank 4 is effectively reduced, minimizing the impact on underwater acoustic tests. The water passage array is used to reduce water flow impact and maintain stable and uniform water flow within the test tank 3.

[0078] Specifically, based on the test data obtained from the water flow sensor installed in the test chamber, the test water flow velocity can be obtained by adjusting the opening and closing size of valve 13 at the inlet of water injection buffer chamber 2 and the valve at the outlet of water outlet buffer chamber 4. When the water injection or drainage valve 13 is selected to be electrically controlled (such as using a solenoid valve), it can also be used in conjunction with an automation device to achieve automatic adjustment.

[0079] Furthermore, the test chamber 3 is entirely made of a transparent material (such as plexiglass) to facilitate observation of the attitude of the underwater vehicle 9 during the test. The test chamber 3 is fixed to the water-filled buffer chamber 2 and the water-ejected buffer chamber 4 by tie rods 31. The test chamber 3 is equipped with flow-guiding components 8 on both sides, such as... Figure 5As shown, the flow guiding assembly 8 includes a platform and a flow guiding plate 83 mounted on the platform. The platform includes an outer platform 81 and an inner platform 82. The outer platform 81 is located outside the test chamber 3, and the inner platform 82 is located inside the test chamber 3. One end of the flow guiding plate 83 is hinged to the side of the inner platform 82 near the interior of the test chamber 3. A slider 84 is provided at the hinge point, and a groove 85 is provided on the flow guiding plate 83. When the flow guiding plate 83 rotates, the slider 84 slides in the groove 85. A bushing 87 is provided at the other end of the flow guiding plate 83. A screw 86 passes through the outer platform 81 and the inner platform 82 and is connected to the bushing 87. By manually or by a motor driving the screw 86, the end of the flow guiding plate 83 can be raised or lowered to control the rotation angle and the frequency of angle change of the flow guiding plate 83, thereby generating different water flow effects on both sides of the underwater vehicle 9 to simulate the changes in actual water flow.

[0080] The top of the test chamber 3 is equipped with a mounting assembly 6 for attaching the underwater vehicle 9, such as... Figure 6 As shown, the mounting assembly 6 includes a slide rail 61, a mounting bracket 62, and a hanger 64. The mounting bracket 62 is equipped with multiple rollers 63, allowing it to slide along the slide rail 61. The bottom of the hanger 64 is provided with a hanging ring 65 for fixing the underwater vehicle 9. The measuring mechanism 7 is mounted on the mounting bracket 62 and is used to move with the underwater vehicle 9 in three degrees of freedom (longitudinal, lateral, and vertical) and to measure its rotation angles (pitch angle, roll angle, and horizontal rotation angle) in the three degrees of freedom.

[0081] Specifically, such as Figure 6-10As shown, the measuring mechanism 7 includes: a pitch measuring component, a roll measuring component, and a horizontal measuring component. The pitch measuring component is configured to rotate with the underwater vehicle 9 about its longitudinal axis, and is used to measure the pitch angle of the underwater vehicle 9. The roll measuring component is configured to rotate with the underwater vehicle 9 about its transverse axis, and is used to measure the roll angle of the underwater vehicle 9. The horizontal measuring component is configured to rotate with the underwater vehicle 9 about its vertical axis, and is used to measure the horizontal rotation angle of the underwater vehicle 9. The pitch measuring component includes: a pitch shaft 711, a pitch trunnion 712, and a pitch position sensor 713. The pitch shaft 711 is longitudinally fixed to the mounting bracket 62. The pitch trunnion 712 is fitted onto the pitch shaft 711. The pitch position sensor 713 is mounted on the mounting bracket 62 via a mounting bracket 74 and corresponds to the pitch shaft 711, used to measure the pitch angle of the underwater vehicle 9. The roll measurement assembly includes a roll shaft 721, a roll trunnion 722, and a pitch position sensor 723. The roll shaft 721 is laterally fixed to the pitch trunnion 712. The roll trunnion 722 is U-shaped, with its two ends rotatably connected to the two ends of the roll shaft 721. The pitch position sensor 723 is mounted on the roll trunnion 722 via a mounting bracket 74 and corresponds to the roll shaft 721, used to measure the roll angle of the underwater vehicle 9. The horizontal measurement assembly includes a vertical shaft 731 and a horizontal position sensor 732. The vertical shaft 731 is vertically arranged at the bottom of the roll trunnion 722 and fixedly connected to the bracket 64. The horizontal position sensor 732 is mounted inside the roll trunnion 722 via the mounting bracket 74 and corresponds to the vertical shaft 731, used to measure the horizontal rotation angle of the underwater vehicle 9.

[0082] Specifically, after the water pressure, water flow velocity, and lateral water flow simulation parameters of test chamber 3 are set, the underwater vehicle 9 installed in the middle of test chamber 3 will deflect due to changes in water flow. When the rudder angle is changed inside the underwater vehicle 9, the underwater vehicle 9 will inevitably produce dynamic angle deflection in the simulated underwater environment. Therefore, the rotation parameters of the underwater vehicle 9 in the three degrees of freedom are measured in real time using the pitch position sensor 713, pitch position sensor 723, and horizontal position sensor 732 to provide data support for the experiment.

[0083] Furthermore, to ensure test safety, limiting devices are installed in all three rotation directions of the underwater vehicle 9, specifically including a pitch limiting assembly, a roll limiting assembly, and a horizontal limiting assembly. The pitch limiting assembly 751 includes a front longitudinal limiting plate and a rear longitudinal limiting plate mounted on the mounting bracket 62, used to limit the longitudinal pitch angle of the front and rear ends of the underwater vehicle 9. The roll limiting assembly includes two first limiting plates 752 and two second limiting plates 753 respectively located on both sides of the mounting bracket 62. The first limiting plates 752 are fixed to the mounting bracket 62, and the second limiting plates 752 are fixed to the bottom of the roll trunnion 722, with a roll limiting plate 754 on its upper part facing the first limiting plates 752. When the underwater vehicle 9 rotates around the horizontal axis to a certain angle (when the roll angle is at its maximum), the roll limiting plate 754 will abut against the first limiting plate 752, thereby limiting the roll angle of the underwater vehicle 9. The horizontal limiting component is a limiting post 755 located inside the second limiting plate 753. The bottom plane of the second limiting plate 753 is lower than the top plane of the bracket 65. When the underwater vehicle 9 rotates around the vertical axis to a certain angle (when the horizontal rotation angle is the maximum), the limiting post 755 will abut against the bracket 65, thereby limiting the horizontal rotation angle of the underwater vehicle 9.

[0084] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.

Claims

1. A dynamic environment simulation test device for underwater vehicles, comprising: The water storage tank, the test chamber (3), and the mounting assembly (6) disposed within the test chamber (3) are characterized in that they further include: The measuring mechanism (7) is located on the mounting assembly (6) and configured to move with the movement of the underwater vehicle (9) to measure the change of the rudder angle of the underwater vehicle (9) in real time. A limiting mechanism is fixedly installed on the mounting assembly (6) to limit the movement of the underwater vehicle (9); A flow guiding component (8) is located inside the test chamber (3) and is configured to have an adjustable flow guiding angle; The flow guiding component (8) includes: The test stand is located on the side wall of the test chamber (3); A flow deflector (83) is installed on the side of the test bench near the interior of the test chamber (3) in an adjustable manner; The water storage tank is provided in multiple sets, each set consisting of a high-level water storage tank (11) and a low-level water storage tank (11). The height of the high-level water storage tank (11) and the low-level water storage tank (11) is higher than the height of the test tank (3). The pressure generated by the height difference corresponds to the pressure at a certain depth underwater. The test bench includes an outer test bench (81) and an inner test bench (82). The outer test bench (81) is located outside the test chamber (3), and the inner test bench (82) is located inside the test chamber (3). One end of the guide plate (83) is hinged to the side of the inner test bench (82) near the inside of the test chamber (3). A slider (84) is provided at the hinge. A groove (85) is provided on the guide plate (83). When the guide plate (83) rotates, the slider (84) slides in the groove (85). A bushing (87) is provided at the other end of the guide plate (83). A screw (86) passes through the outer test bench (81) and the inner test bench (82) and is connected to the bushing (87). The mounting component (6) includes: A slide rail (61) is located on the top of the test chamber (3); The mounting bracket (62) is slidably connected to the slide rail (61); The mounting bracket (64) is connected to the mounting bracket (62) and is used to mount the underwater vehicle (9). The measuring mechanism (7) includes: The pitch measurement component is configured to rotate with the rotation of the underwater vehicle (9) about the longitudinal axis and is used to measure the pitch angle of the underwater vehicle (9). The roll measurement component is configured to rotate with the rotation of the underwater vehicle (9) about the transverse axis and is used to measure the roll angle of the underwater vehicle (9). A horizontal measuring component is configured to rotate with the underwater vehicle (9) about the vertical axis and is used to measure the horizontal rotation angle of the underwater vehicle (9). The pitch measurement component includes: The tilt axis (711) is longitudinally arranged on the mounting bracket (62); The tilt bracket (712) is fitted onto the tilt shaft (711) at one end and fixedly connected to the tilt measuring assembly at the other end. A pitch position sensor (713) is mounted on the mounting bracket (62) and is used to measure the pitch angle of the underwater vehicle (9); The tilt measurement component includes: The tilt axis (721) is arranged laterally on the tilt bracket (712) and connected to the horizontal measuring component through the tilt bracket (722); A roll position sensor (723) is mounted on the roll trunnion (722); used to measure the roll angle of the underwater vehicle (9); The horizontal measurement component includes: A vertical shaft (731) is vertically arranged on the tilting lug (722) and connected to the hanger (64); A horizontal position sensor (732) is located inside the tilting lug (722) and is used to measure the horizontal rotation angle of the underwater vehicle (9).

2. The underwater vehicle dynamic environment simulation test device as described in claim 1, characterized in that, The limiting mechanism includes: A pitch limiting component (751) is provided on the mounting bracket (62) and is used to limit the pitch angle of the underwater vehicle (9); A roll limiting component is provided on the mounting bracket (62) to limit the roll angle of the underwater vehicle (9); A horizontal limiting component is provided on the tilt limiting component to limit the horizontal rotation angle of the underwater vehicle (9).

3. The underwater vehicle dynamic environment simulation test device as described in claim 2, characterized in that, The tilt limiting component includes: Two first limiting plates (752) are fixed on both sides of the hanging bracket (62); Two second limiting plates (753) are fixed on the tilting bracket (722), and a tilting limiting plate (754) facing the first limiting plate (752) is provided on the upper part; the lowest point of the second limiting plate (753) is lower than the highest point of the bracket (64); The horizontal limiting component consists of a plurality of limiting posts (755) located inside the second limiting plate (753).

4. The underwater vehicle dynamic environment simulation test device as described in claim 1, characterized in that, Also includes: The water injection buffer tank (2) has one end connected to the water storage tank and the other end connected to the water inlet of the test tank (3); The water outlet buffer chamber (4) is connected at one end to the water outlet of the test chamber (3); The noise reduction component (5) is located in the water injection buffer tank (2) and the water outlet buffer tank (4) to reduce noise.

5. The underwater vehicle dynamic environment simulation test device as described in claim 4, characterized in that, The noise reduction component (5) includes: End plate (51) is provided in the water injection buffer chamber (2) / water outlet buffer chamber (4); An array of water passage holes is provided on the end plate (51); An array of noise-reducing components is disposed on the end plate (51).

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