An underwater simulation hypergravity / microgravity environment test device and test method

Abstract

The application discloses a kind of underwater simulation hypergravity / weightlessness environment test device and test method, comprising: cabin mechanism, liquid supply mechanism, gas supply mechanism, large water tank and position detector;The position detector is used to detect the position of cabin mechanism in large water tank and send position information to control system;The control system is used to control the gas supply mechanism to inject or discharge compressed gas to change the volume of cabin mechanism according to the position information provided by position detector;And / or control the liquid supply mechanism to inject or discharge liquid to change the weight of cabin mechanism, the weight of cabin mechanism is changed by liquid supply mechanism, so that cabin mechanism sinks downward, with acceleration upward, so that the whole main cabin is in hypergravity state;The volume of cabin mechanism is changed by gas supply mechanism, so that the buoyancy of cabin mechanism is upward, with acceleration upward, so that the whole main cabin is in weightlessness state.

Description

Technical Field

[0001] This application belongs to the field of aerospace environment simulation technology, specifically relating to an underwater simulation test device and test method for hypergravity / weightlessness environment. Background Technology

[0002] Manned spaceflight is one of the most complex systems engineering projects in human history, and its development depends on the overall advancement of science and technology. Simultaneously, it influences the development of the entire modern science and technology field, while also posing new development requirements to various areas of modern science and technology, thereby promoting and driving the development of science and technology as a whole.

[0003] However, astronauts encounter weightlessness and G-force during space missions. These environments can cause various difficulties for astronauts. After spaceflight, astronauts may experience cardiovascular dysfunction, including decreased tolerance to G-forces, orthostatic hypoxia, and exercise, manifesting as fainting, reduced athletic ability, and inability to tolerate training. This can have a significant impact on astronauts' health. Current devices simulating weightlessness and G-force use the tension of springs and cables or the device's buoyancy during air jet propulsion to simulate these states. However, the acceleration is unstable and difficult to adjust, and the lack of adequate safety measures around the device makes it prone to tilting and creating safety hazards.

[0004] Application content

[0005] To overcome the shortcomings of the prior art, this application proposes an underwater simulated hypergravity / weightlessness environment test device, including: a cabin structure, a liquid supply mechanism, a gas supply mechanism, a large water tank 5, and a position detector;

[0006] The cabin mechanism is located inside the large water tank 5. The liquid supply mechanism and the gas supply mechanism are respectively connected to the cabin mechanism, and both the liquid supply mechanism and the gas supply mechanism are located outside the large water tank 5. Multiple position detectors are provided, and the multiple position detectors are respectively located on the cabin mechanism and the large water tank 5. The cabin mechanism is equipped with a control system, and the control system is communicatively connected to the liquid supply mechanism and the gas supply mechanism.

[0007] The position detector is used to: detect the position of the cabin mechanism in the large water tank 5 and send the position information to the control system;

[0008] The control system is used to: control the gas supply mechanism to inject or discharge compressed gas to change the volume of the cabin mechanism based on the position information provided by the position detector; and / or control the liquid supply mechanism to inject or discharge liquid to change the weight of the cabin mechanism.

[0009] Preferably, the position detector includes: sensor 12, sensor 27, and sensor 320;

[0010] Sensor 12 and Sensor 27 are arranged vertically from top to bottom inside the large water tank 5, and Sensor 320 is arranged on the cabin mechanism.

[0011] Preferably, the cabin structure includes: a main cabin 21, a gas expansion assembly, a counterweight chamber 11, and a cabin control room 10;

[0012] The cockpit control room 10 is installed inside the main body 21, the control system is located in the cockpit control room 10, the main body 21 is located inside the large water tank 5, the gas expansion assembly is located at the bottom of the main body 21, the gas expansion assembly is connected to the gas supply mechanism, the counterweight chamber 11 is located on the outside of the main body 21, and the counterweight chamber 11 is connected to the liquid supply mechanism.

[0013] The sensor 20 is installed on the outside of the main body 21.

[0014] Preferably, a cockpit entrance / exit 9 is provided at the connection between the cockpit control room 10 and the main cabin 21. The cockpit entrance / exit 9 connects the external space and the cockpit control room 10. A corresponding sealing plate is provided on the cockpit entrance / exit 9, and the sealing plate is used to seal or open the cockpit entrance / exit 9.

[0015] Preferably, the gas expansion assembly includes: an air chamber 7 and a compressed air bag 8 connected to each other, the air chamber 7 being installed at the bottom of the main body 21, the compressed air bag 8 being connected to the bottom of the air chamber 7, and the gas supply mechanism being connected to the air chamber 7.

[0016] Preferably, the gas supply mechanism includes: an air compressor 1, an air inlet pipe 2, and an air outlet pipe 4; one end of the air inlet pipe 2 is connected to the air compressor 1, and the other end is connected to the air chamber 7; one end of the air outlet pipe 4 is connected to the air chamber 7, and the other end extends outward to the outside of the large water tank 5 to connect with the external atmospheric environment.

[0017] Preferably, the liquid supply mechanism includes: a supply pipe 14, an outlet pipe 15, and a liquid tank 16; one end of the supply pipe 14 and the outlet pipe 15 are respectively connected to the liquid tank 16, and the other end of the supply pipe 14 and the outlet pipe 15 are respectively connected to the counterweight chamber 11.

[0018] Preferably, the liquid in the liquid tank 16 is a mercury liquid.

[0019] Preferably, the large water tank 5 is provided with a limiting component, and the sensor 12 and sensor 27 are installed on the limiting component in the vertical direction from top to bottom. The limiting component includes: column 1 6, column 2 19, column 3 22, column 4 23 and pressure baffle 18.

[0020] The first column 6, the second column 19, the third column 22, and the fourth column 23 are respectively vertically fixed to the bottom of the large water tank 5. The cabin mechanism is engaged between the first column 6, the second column 19, the third column 22, and the fourth column 23. The pressure baffle 18 is parallel to the bottom surface of the large water tank 5 and is movably installed between the first column 6, the second column 19, the third column 22, and the fourth column 23.

[0021] When the cabin mechanism is located at the position of sensor 12, the pressure baffle 18 is closed and supported at the bottom of the cabin mechanism;

[0022] When the cabin mechanism sinks toward the position of the second sensor 17, the pressure baffle 18 opens to cause the cabin mechanism to sink.

[0023] Based on the same concept, this application also provides an underwater simulation method for hypergravity / weightlessness environment testing, including:

[0024] When the position detector detects that the cabin mechanism is floating in the large water tank 5, the control system controls the liquid supply mechanism to inject liquid into the cabin mechanism according to the position information provided by the position detector, thereby increasing the weight of the cabin mechanism and causing the cabin mechanism to sink to simulate a weightless environment.

[0025] When the position detector detects that the cabin mechanism is submerged in the large water tank 5, the control system controls the gas supply mechanism to inject gas into the cabin mechanism according to the position information provided by the position detector, thereby increasing the volume of the cabin mechanism. At the same time, the liquid in the cabin mechanism is discharged back into the liquid supply mechanism to change the weight of the cabin mechanism, so that the cabin mechanism floats upward to simulate a hypergravity environment.

[0026] The underwater simulated hypergravity / weightlessness environment test device is described above as an underwater simulated hypergravity / weightlessness environment test device.

[0027] Preferably, when the position detector detects that the cabin mechanism is floating in the large water tank 5, the control system controls the liquid supply mechanism to inject liquid into the cabin mechanism according to the position information provided by the position detector, increasing the weight of the cabin mechanism and causing the cabin mechanism to sink to simulate a weightless environment, including:

[0028] When sensor 3 20 is located at sensor 1 12, the cabin structure floats in the large water tank 5. The control system controls the liquid tank 16 to open based on the position information provided by sensor 3 20 and sensor 1 12, injecting mercury into the counterweight chamber 11 through the supply pipe 14 to increase the weight of the main cabin. The pressure baffle 18 opens, and the main cabin 21 undergoes a vertical downward sinking motion along column 1 6, column 2 19, column 3 22, and column 4 24 to simulate a weightless environment. When sensor 3 20 reaches the position of sensor 2 17, the control system controls the liquid tank 16 to stop the continuous injection of mercury.

[0029] Preferably, when the position detector detects that the cabin mechanism is submerged in the large water tank 5, the control system controls the gas supply mechanism to inject gas into the cabin mechanism based on the position information provided by the position detector, increasing the volume of the cabin mechanism. Simultaneously, the liquid in the cabin mechanism is discharged back into the liquid supply mechanism, changing the weight of the cabin mechanism and causing it to float upwards to simulate a hyperglycemic environment. This includes:

[0030] When sensor 3 20 of the main cabin is located at the position of sensor 2 17, the cabin structure is submerged in the large water tank 5. The control system controls the air compressor 1 to start based on the position information provided by sensor 3 20 and sensor 2 17, and inputs compressed air into the air chamber 7 through the air intake pipe 2, thereby causing the airbag 8 to expand, changing the volume of the main cabin, and thus changing the buoyancy of the main cabin 21. At the same time, the control system controls the liquid tank 16 to discharge the mercury in the counterweight chamber 11 through the liquid outlet pipe 15 and flow back into the liquid tank 16, thereby changing the mass of the main cabin 21. At this time, the main cabin 21 will float vertically upward along the column 1 6, column 2 19, column 3 22, and column 4 24 to simulate a hypergravity environment. When sensor 3 20 reaches the position of sensor 1 12, the control system controls the air compressor 1 to stop injecting compressed air.

[0031] Compared with the closest prior art, the beneficial effects of this application are as follows:

[0032] An underwater simulated weightlessness / weightlessness environment testing device, characterized in that it comprises: a chamber structure, a liquid supply mechanism, a gas supply mechanism, a large water tank 5, and position detectors; the chamber structure is disposed inside the large water tank 5, the liquid supply mechanism and the gas supply mechanism are respectively connected to the chamber structure, and both the liquid supply mechanism and the gas supply mechanism are disposed outside the large water tank 5; multiple position detectors are provided, and the multiple position detectors are respectively disposed on the chamber structure and the large water tank 5; a control system is disposed inside the chamber structure, and the control system is communicatively connected to the liquid supply mechanism and the gas supply mechanism; the position detectors are used for... The system detects the position of the cabin mechanism within the large water tank 5 and sends the position information to the control system. The control system is used to: control the gas supply mechanism to inject or discharge compressed gas to change the volume of the cabin mechanism based on the position information provided by the position detector; and / or control the liquid supply mechanism to inject or discharge liquid to change the weight of the cabin mechanism; by changing the weight of the cabin mechanism through the liquid supply mechanism, the cabin mechanism sinks downward with downward acceleration, thus putting the entire main cabin in a state of overweight; by changing the volume of the cabin mechanism through the gas supply mechanism, the buoyancy force on the cabin mechanism causes it to float upward with upward acceleration, thus putting the entire main cabin in a state of weightlessness. Attached Figure Description

[0033] Figure 1 A cross-sectional view of an underwater simulated weightless / weightless environment testing device provided in this application;

[0034] Figure 2 This application provides a top view of the main body of an underwater simulated hypergravity / weightlessness environment testing device;

[0035] Figure 3 A rear view of the external system of an underwater simulated hypergravity / weightlessness environment testing device provided in this application;

[0036] Figure 4 A flowchart illustrating an underwater simulation of weightlessness / weightlessness environment testing method provided by this invention;

[0037] Among them, 1-air compressor, 2-inlet pipe, 3-water inlet, 4-outlet pipe, 5-large water tank, 6-pillar one, 7-air chamber, 8-compressed airbag, 9-cabin entrance / exit, 10-cabin control room, 11-counterweight chamber, 12-sensor one, 13-staircase, 14-liquid supply pipe, 15-liquid outlet pipe, 16-liquid tank, 17-sensor two, 18-pressure baffle, 19-pillar two, 20-sensor three, 21-main body, 22-pillar three, 23-pillar four. Detailed Implementation

[0038] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0039] Example 1:

[0040] This application provides a method for simulating weightlessness and hypergravity environments using the principle of buoyancy, thereby providing space environment adaptation training for astronauts.

[0041] To achieve the above objectives, this application provides the following: Figure 1 The underwater simulated weightlessness / weightlessness environment test device shown includes: a cabin structure, a liquid supply mechanism, a gas supply mechanism, a large water tank 5, and a position detector;

[0042] The cabin mechanism is located inside the large water tank 5. The liquid supply mechanism and the gas supply mechanism are respectively connected to the cabin mechanism, and both the liquid supply mechanism and the gas supply mechanism are located outside the large water tank 5. Multiple position detectors are provided, and the multiple position detectors are respectively located on the cabin mechanism and the large water tank 5. The cabin mechanism is equipped with a control system, and the control system is communicatively connected to the liquid supply mechanism and the gas supply mechanism.

[0043] The position detector is used to: detect the position of the cabin mechanism in the large water tank 5 and send the position information to the control system;

[0044] The control system is used to: control the gas supply mechanism to inject or discharge compressed gas to change the volume of the cabin mechanism based on the position information provided by the position detector; and / or control the liquid supply mechanism to inject or discharge liquid to change the weight of the cabin mechanism.

[0045] This device changes the weight of the cabin mechanism through a liquid supply mechanism, causing the cabin mechanism to sink downwards with downward acceleration, thus putting the entire main cabin in a state of overweight; and changes the volume of the cabin mechanism through a gas supply mechanism, causing the cabin mechanism to float upwards with buoyancy and upward acceleration, thus putting the entire main cabin in a state of weightlessness.

[0046] Preferably, the position detector includes: sensor 12, sensor 27, and sensor 320;

[0047] Sensor 12 and Sensor 27 are arranged vertically from top to bottom inside the large water tank 5, and Sensor 320 is arranged on the cabin mechanism.

[0048] A water inlet 3 is provided on one side of the large water tank 5. The water inlet 3 is used to add water to the large water tank 5 so that the cabin structure can float on the water surface or be completely submerged in the water.

[0049] Sensor 12 and Sensor 27 are used to detect the position of the cabin mechanism and thus control the input and output of the liquid supply mechanism and gas supply mechanism in the supply system; Sensor 320 is used to determine the position of the cabin mechanism itself and compares it with Sensor 12 and Sensor 27 when determining the position.

[0050] like Figure 2 As shown, preferably, the cabin structure includes: a main cabin 21, a gas expansion assembly, a counterweight chamber 11, and a cabin control room 10;

[0051] The cockpit control room 10 is installed inside the main body 21, the control system is located in the cockpit control room 10, the main body 21 is located inside the large water tank 5, the gas expansion assembly is located at the bottom of the main body 21, the gas expansion assembly is connected to the gas supply mechanism, the counterweight chamber 11 is located on the outside of the main body 21, and the counterweight chamber 11 is connected to the liquid supply mechanism.

[0052] The sensor 20 is installed on the outside of the main body 21.

[0053] The gas supply mechanism inputs or outputs compressed gas to the gas expansion assembly, thereby changing the overall volume of the cabin mechanism to achieve floating or sinking in water. The liquid supply mechanism is used to input or output liquid into the counterweight chamber 11, causing the overall mass of the cabin mechanism to change, thus changing the state of weightlessness or overweight in water. The cockpit control room 10 is equipped with a control system, which injects or discharges compressed gas into the gas supply mechanism to change the volume of the cabin mechanism; and / or controls the liquid supply mechanism to inject or discharge liquid to change the weight of the cabin mechanism for testing.

[0054] Preferably, a cockpit entrance / exit 9 is provided at the connection between the cockpit control room 10 and the main cabin 21. The cockpit entrance / exit 9 connects the external space and the cockpit control room 10. A corresponding sealing plate is provided on the cockpit entrance / exit 9, and the sealing plate is used to seal or open the cockpit entrance / exit 9.

[0055] The test personnel enter the cockpit control room 10 from the cockpit entrance 9 via the staircase 13. The cockpit control room 10 can control the entire device.

[0056] Preferably, the gas expansion assembly includes: an air chamber 7 and a compressed air bag 8 connected to each other, the air chamber 7 being installed at the bottom of the main body 21, the compressed air bag 8 being connected to the bottom of the air chamber 7, and the gas supply mechanism being connected to the air chamber 7.

[0057] The compressed airbag 8 is located at the bottom of the main cabin 21. By injecting and releasing compressed gas, the airbag 8 expands, changing the volume of the entire main cabin 21, and thus changing the buoyancy force on the main cabin 21, i.e., F. 浮 =ρgV 排 Among them, F 浮 The buoyancy force received by the main cabin 21, ρ is the density of the liquid in the large water tank 5, g is the acceleration due to gravity, and V 排 It is the volume of liquid displaced by an object.

[0058] Preferably, the gas supply mechanism includes: an air compressor 1, an air inlet pipe 2, and an air outlet pipe 4; one end of the air inlet pipe 2 is connected to the air compressor 1, and the other end is connected to the air chamber 7; one end of the air outlet pipe 4 is connected to the air chamber 7, and the other end extends outward to the outside of the large water tank 5 to connect with the external atmospheric environment.

[0059] Among them, the air inlet pipe 2 and the air outlet pipe 4 are flexible pipes with sufficient length to move with the movement of the main body 21.

[0060] Preferably, the liquid supply mechanism includes: a supply pipe 14, an outlet pipe 15, and a liquid tank 16; one end of the supply pipe 14 and the outlet pipe 15 are respectively connected to the liquid tank 16, and the other end of the supply pipe 14 and the outlet pipe 15 are respectively connected to the counterweight chamber 11.

[0061] Preferably, the liquid in the liquid tank 16 is a mercury liquid.

[0062] The liquid tank 16 fills the counterweight chamber 11 with mercury via the supply pipe 14 to increase the weight of the main body. When the total weight M of the main body 21 and the control room reaches a certain value, that is... Wherein, G is the total weight of the main cabin 21 and the counterweight chamber 11, and F is the total weight of the main cabin 21 and the counterweight chamber 11. 浮 The buoyancy force on the main hull 21, F 阻 The resistance experienced by the main cabin 21 is g, where g is the acceleration due to gravity.

[0063] Among them, the liquid supply pipe 14 and the liquid outlet pipe 15 are flexible pipes with sufficient length to move with the movement of the main body 21.

[0064] like Figure 3 As shown, the large water tank 5 is equipped with a limiting component. Sensor 12 and Sensor 27 are installed on the limiting component in the vertical direction from top to bottom. The limiting component includes: column 16, column 219, column 32, column 423 and pressure baffle 18.

[0065] The first column 6, the second column 19, the third column 22, and the fourth column 23 are respectively vertically fixed to the bottom of the large water tank 5. The cabin mechanism is engaged between the first column 6, the second column 19, the third column 22, and the fourth column 23. The pressure baffle 18 is parallel to the bottom surface of the large water tank 5 and is movably installed between the first column 6, the second column 19, the third column 22, and the fourth column 23.

[0066] When the cabin mechanism is located at the position of sensor 12, the pressure baffle 18 is closed and supported at the bottom of the cabin mechanism;

[0067] When the cabin mechanism sinks toward the position of the second sensor 17, the pressure baffle 18 opens to cause the cabin mechanism to sink.

[0068] The columns 1-6, 2-19, 3-22, and 4-23 cause the main cabin 21 to move upward and downward along the vertical direction.

[0069] Example 2:

[0070] The underwater simulated hypergravity / weightlessness environment test method described in this application is as follows: Figure 4 As shown, it includes:

[0071] When the position detector detects that the cabin mechanism is floating in the large water tank 5, the control system controls the liquid supply mechanism to inject liquid into the cabin mechanism according to the position information provided by the position detector, thereby increasing the weight of the cabin mechanism and causing the cabin mechanism to sink to simulate a weightless environment.

[0072] When the position detector detects that the cabin mechanism is submerged in the large water tank 5, the control system controls the gas supply mechanism to inject gas into the cabin mechanism according to the position information provided by the position detector, thereby increasing the volume of the cabin mechanism. At the same time, the liquid in the cabin mechanism is discharged back into the liquid supply mechanism to change the weight of the cabin mechanism, so that the cabin mechanism floats upward to simulate a hypergravity environment.

[0073] The underwater simulated hypergravity / weightlessness environment test device is the underwater simulated hypergravity / weightlessness environment test device as described above.

[0074] Preferably, when the position detector detects that the cabin mechanism is floating in the large water tank 5, the control system controls the liquid supply mechanism to inject liquid into the cabin mechanism according to the position information provided by the position detector, increasing the weight of the cabin mechanism and causing the cabin mechanism to sink to simulate a weightless environment, including:

[0075] When sensor 3 20 is located at sensor 1 12, the cabin structure floats in the large water tank 5. The control system controls the liquid tank 16 to open based on the position information provided by sensor 3 20 and sensor 1 12, injecting mercury into the counterweight chamber 11 through the supply pipe 14 to increase the weight of the main cabin. The pressure baffle 18 opens, and the main cabin 21 undergoes a vertical downward sinking motion along column 1 6, column 2 19, column 3 22, and column 4 24 to simulate a weightless environment. When sensor 3 20 reaches the position of sensor 2 17, the control system controls the liquid tank 16 to stop the continuous injection of mercury.

[0076] Preferably, when the position detector detects that the cabin mechanism is submerged in the large water tank 5, the control system controls the gas supply mechanism to inject gas into the cabin mechanism based on the position information provided by the position detector, increasing the volume of the cabin mechanism. Simultaneously, the liquid in the cabin mechanism is discharged back into the liquid supply mechanism, changing the weight of the cabin mechanism and causing it to float upwards to simulate a hyperglycemic environment. This includes:

[0077] When sensor 3 20 of the main cabin is located at the position of sensor 2 17, the cabin structure is submerged in the large water tank 5. The control system controls the air compressor 1 to start based on the position information provided by sensor 3 20 and sensor 2 17, and inputs compressed air into the air chamber 7 through the air intake pipe 2, thereby causing the airbag 8 to expand, changing the volume of the main cabin, and thus changing the buoyancy of the main cabin 21. At the same time, the control system controls the liquid tank 16 to discharge the mercury in the counterweight chamber 11 through the liquid outlet pipe 15 and flow back into the liquid tank 16, thereby changing the mass of the main cabin 21. At this time, the main cabin 21 will float vertically upward along the column 1 6, column 2 19, column 3 22, and column 4 24 to simulate a hypergravity environment. When sensor 3 20 reaches the position of sensor 1 12, the control system controls the air compressor 1 to stop injecting compressed air.

[0078] The test personnel enter the cockpit control room 10 from the cockpit entrance 9 via the staircase 13. The cockpit control room 10 can control the entire device.

[0079] The entire device is started. When sensor 3 20 is first located at sensor 1 12, liquid tank 16 fills the counterweight chamber 11 with mercury through supply pipe 14 to increase the weight of the main body 21. When the total weight M of the main body 21 and the control room reaches a certain value, that is... G is the total weight of the main cabin 21 and the counterweight chamber 11, and F is the weight of the main cabin 21 and the counterweight chamber 11. 浮 The buoyancy force on the main hull 21, F 阻The main cabin 21 experiences resistance, where g is the acceleration due to gravity. When this resistance is applied, the pressure baffle 18 opens, causing the main cabin to descend vertically along columns 1-6, 2-19, 3-22, and 4-23. During this downward motion, the main cabin 21 experiences a downward acceleration greater than the acceleration due to gravity g, thus simulating a weightless environment. Throughout this process, mercury is continuously supplied to the counterweight chamber 11 via the supply pipe 14 until sensor 3-20 reaches the position of sensor 2-17, at which point the mercury supply stops.

[0080] When sensor 20 of the main cabin 21 is located at the position of sensor 17, the air compressor 1 inputs compressed air into the air chamber 7 through the air intake pipe 2, thereby causing the compressed air bag 8 to expand, changing the volume of the main cabin 21, and thus changing the buoyancy force on the main cabin 21, i.e., F. 浮 =ρgV 排 , of which F 浮 The buoyancy force received by the main cabin 21, ρ is the density of the liquid in the large water tank 5, g is the acceleration due to gravity, and V 排 This is the volume of liquid displaced by the object; simultaneously, mercury flows from the counterweight chamber 11 back to the liquid tank 16 through the outlet pipe 15, thus changing the mass M of the main body. At this time, the main body 21 will undergo a vertical upward motion along the columns 1-6, 2-19, 3-22, and 4-23, and will have an upward acceleration a, i.e., acceleration. Where a is the acceleration experienced by the main body 21, G is the total weight of the main body 21 and the counterweight chamber 11, and F is the acceleration experienced by the main body 21. 浮 The buoyancy force on the main hull 21, F 阻 The resistance experienced by the main cabin 21 is g, which is the acceleration due to gravity, thus simulating a hypergravity environment. During this process, mercury will continuously flow out of the counterweight chamber 11 from the outlet pipe 15 and flow back into the liquid tank 16, while compressed gas will continuously be injected into the air chamber 7 from the air compressor 1 until the main cabin 21 reaches the sensor 12.

[0081] When the main body 21 floats to the position of sensor 3 20 and is located at the position of sensor 1 12 for the second time, the air compressor 1 stops supplying compressed air to the air chamber 7. The compressed air in the air chamber 7 is discharged into the atmosphere through the air outlet pipe 4 until it is completely discharged. The volume of the compressed air bag 8 returns to its original size, the pressure baffle 18 retracts, and the counterweight chamber 11 completely drains the mercury in it into the mercury tank.

[0082] The entire device was shut down, and the test personnel left their seats, exited the cockpit control room 10 through cockpit entrance 9, and safely evacuated from the entire device.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and not to limit its protection scope. Although this application has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading this application, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the application, but these changes, modifications or equivalent substitutions are all within the protection scope of the claims pending approval.

Claims

1. An underwater simulated weightlessness / weightlessness environment testing device, characterized in that, include: The cabin structure, liquid supply mechanism, gas supply mechanism, large water tank (5) and position detector; The cabin mechanism is located inside the large water tank (5). The liquid supply mechanism and the gas supply mechanism are respectively connected to the cabin mechanism, and the liquid supply mechanism and the gas supply mechanism are both located outside the large water tank (5). Multiple position detectors are provided, and the multiple position detectors are respectively located on the cabin mechanism and the large water tank (5). The cabin mechanism is equipped with a control system, and the control system is communicatively connected to the liquid supply mechanism and the gas supply mechanism. The position detector is used to: detect the position of the cabin mechanism in the large water tank (5) and send the position information to the control system; The control system is used to: control the gas supply mechanism to inject or discharge compressed gas to change the volume of the cabin mechanism based on the position information provided by the position detector; and / or control the liquid supply mechanism to inject or discharge liquid to change the weight of the cabin mechanism.

2. The apparatus as claimed in claim 1, characterized in that, The position detector includes: sensor one (12), sensor two (17) and sensor three (20); Sensor 1 (12) and Sensor 2 (17) are arranged vertically from top to bottom inside the large water tank (5), and Sensor 3 (20) is arranged on the cabin mechanism.

3. The apparatus as described in claim 2, characterized in that, The cabin structure includes: a main cabin (21), a gas expansion assembly, a counterweight chamber (11), and a cabin control room (10). The cockpit control room (10) is installed inside the main body (21), the control system is located in the cockpit control room (10), the main body (21) is located inside the large water tank (5), the gas expansion assembly is located at the bottom of the main body (21), the gas expansion assembly is connected to the gas supply mechanism, the counterweight chamber (11) is located on the outside of the main body (21), and the counterweight chamber (11) is connected to the liquid supply mechanism; The sensor three (20) is installed on the outside of the main body (21).

4. The apparatus as described in claim 3, characterized in that, The cockpit control room (10) and the main body (21) are connected by a cockpit entrance (9). The cockpit entrance (9) connects the external space and the cockpit control room (10). The cockpit entrance (9) is provided with a corresponding sealing plate, which is used to seal or open the cockpit entrance (9).

5. The apparatus as described in claim 3, characterized in that, The gas expansion assembly includes an interconnected air chamber (7) and a compressed air bag (8), the air chamber (7) being installed at the bottom of the main body (21), the compressed air bag (8) being connected to the bottom of the air chamber (7), and the gas supply mechanism being connected to the air chamber (7).

6. The apparatus as claimed in claim 5, characterized in that, The gas supply mechanism includes an air compressor (1), an air inlet pipe (2), and an air outlet pipe (4); one end of the air inlet pipe (2) is connected to the air compressor (1), and the other end is connected to the air chamber (7); one end of the air outlet pipe (4) is connected to the air chamber (7), and the other end extends outward to the outside of the large water tank (5) and connects to the external atmospheric environment.

7. The apparatus as claimed in claim 5, characterized in that, The liquid supply mechanism includes a supply pipe (14), an outlet pipe (15), and a liquid tank (16); one end of the supply pipe (14) and the outlet pipe (15) are respectively connected to the liquid tank (16), and the other end of the supply pipe (14) and the outlet pipe (15) are respectively connected to the counterweight chamber (11).

8. The apparatus as claimed in claim 7, characterized in that, The liquid in the liquid tank (16) is mercury liquid.

9. The apparatus as claimed in claim 8, characterized in that, The large water tank (5) is equipped with a limiting component. Sensor 1 (12) and Sensor 2 (17) are installed on the limiting component in the vertical direction from top to bottom. The limiting component includes: column 1 (6), column 2 (19), column 3 (22), column 4 (23) and pressure baffle (18). The first column (6), the second column (19), the third column (22) and the fourth column (23) are respectively vertically fixed to the bottom of the large water tank (5). The cabin mechanism is locked between the first column (6), the second column (19), the third column (22) and the fourth column (23). The pressure baffle (18) is parallel to the bottom surface of the large water tank (5). The pressure baffle (18) is movably installed between the first column (6), the second column (19), the third column (22) and the fourth column (23). When the cabin mechanism is located at the position of sensor 1 (12), the pressure baffle (18) closes and is supported at the bottom of the cabin mechanism; When the cabin mechanism sinks toward the position of the second sensor (17), the pressure baffle (18) opens to cause the cabin mechanism to sink.

10. A test method for the underwater simulated weightlessness / weightlessness environment test device as described in claim 9, characterized in that, include: When the position detector detects that the cabin mechanism is floating in the large water tank (5), the control system controls the liquid supply mechanism to inject liquid into the cabin mechanism according to the position information provided by the position detector, thereby increasing the weight of the cabin mechanism and causing the cabin mechanism to sink to simulate a weightless environment. When the position detector detects that the cabin mechanism is submerged in the large water tank (5), the control system controls the gas supply mechanism to inject gas into the cabin mechanism according to the position information provided by the position detector, thereby increasing the volume of the cabin mechanism. At the same time, the liquid in the cabin mechanism is discharged back into the liquid supply mechanism to change the weight of the cabin mechanism, so that the cabin mechanism floats upward to simulate a hypergravity environment.

11. The method as described in claim 10, characterized in that, When the position detector detects that the cabin mechanism is floating in the large water tank (5), the control system controls the liquid supply mechanism to inject liquid into the cabin mechanism according to the position information provided by the position detector, increasing the weight of the cabin mechanism and causing the cabin mechanism to sink to simulate a weightless environment, including: When sensor three (20) is located at sensor one (12), the cabin structure floats in the large water tank (5). The control system controls the liquid tank (16) to open according to the position information provided by sensor three (20) and sensor one (12), and injects mercury into the counterweight chamber (11) through the liquid supply pipe (14) to increase the weight of the main cabin. The pressure baffle (18) opens, and the main cabin (21) sinks vertically along column one (6), column two (19), column three (22), and column four (23) to simulate a weightless environment. When sensor three (20) reaches the position of sensor two (17), the control system controls the liquid tank (16) to stop the continuous injection of mercury.

12. The method as described in claim 10, characterized in that, When the position detector detects that the cabin mechanism is submerged in the large water tank (5), the control system controls the gas supply mechanism to inject gas into the cabin mechanism according to the position information provided by the position detector, increasing the volume of the cabin mechanism. At the same time, the liquid in the cabin mechanism is discharged back into the liquid supply mechanism to change the weight of the cabin mechanism, so that the cabin mechanism performs an upward movement to simulate a hypergravity environment, including: When sensor three (20) of the main cabin is located at the position of sensor two (17), the cabin structure is submerged in the large water tank (5). The control system controls the air compressor (1) to start according to the position information provided by sensor three (20) and sensor two (17), and inputs compressed air into the air chamber (7) through the air inlet pipe (2), thereby causing the airbag (8) to expand, which changes the volume of the main cabin and thus changes the buoyancy of the main cabin (21). At the same time, the control system controls the liquid tank (16) to discharge the mercury in the counterweight chamber (11) through the liquid outlet pipe (15) back into the liquid tank (16), thereby changing the mass of the main cabin (21). At this time, the main cabin (21) will float vertically along the column one (6), column two (19), column three (22), and column four (23) to simulate the hypergravity environment. When sensor three (20) reaches the position of sensor one (12), the control system controls the air compressor (1) to stop injecting compressed air.

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