Deep-sea environment simulation test device and control method thereof

Abstract

This invention relates to the field of deep-sea environment simulation testing equipment technology, specifically a deep-sea environment simulation testing equipment and its control method. The equipment includes a high-pressure simulation chamber and a measurement and control device. The high-pressure simulation chamber comprises a high-pressure pump station and a high-pressure chamber body. The high-pressure chamber body is equipped with a simulation device, which includes a motion simulation component and a crack simulation component. The measurement and control device includes a control component and a data acquisition component. The control component includes an industrial control computer, a water flow simulation control module, and a crack simulation control module. This invention, by setting up a simulation device including motion simulation and crack simulation components in the high-pressure simulation chamber, achieves the simulation of dynamic water flow effects and structural crack defects in the deep-sea environment. This invention uses the measurement and control device to collect high-pressure chamber body parameters and test object state parameters in real time, and combines this with the control module to ensure pressure stability within the high-pressure chamber, avoiding drastic pressure fluctuations caused by motion simulation, thus improving experimental safety and data reliability.

Description

Technical Field

[0001] This invention relates to the field of deep-sea environment simulation test equipment technology, specifically a deep-sea environment simulation test equipment and its control method. Background Technology

[0002] To reduce the risk and cost of failure in sea trials and to ensure the reliable operation of equipment in actual deep-sea environments, almost all equipment used in deep-sea applications, such as sensors, submersibles, and resource exploration devices, must first undergo pressure resistance and sealing tests in a simulation chamber.

[0003] However, existing deep-sea environment simulation chambers generally only provide static pressure testing and lack corresponding experimental equipment for dynamic motion simulation in deep-sea environments, such as water flow simulation in deep-sea environments. This is because movement in a closed pressure vessel may cause violent pressure fluctuations in the high-pressure chamber, affecting the stability of the pressure in the high-pressure chamber and even endangering experimental safety.

[0004] Therefore, it is urgent to improve the existing deep-sea environment simulation test equipment to enhance its dynamic simulation capabilities, so as to more realistically reproduce the complex deep-sea environment and comprehensively improve the effectiveness of the test and the reliability verification level of the equipment. Summary of the Invention

[0005] Regarding the aforementioned technical problem that existing deep-sea environment simulation test equipment generally only provides static pressure testing, and that movement within the sealed pressure vessel may cause drastic pressure fluctuations within the high-pressure chamber, affecting the stability of the pressure within the high-pressure chamber, the technical solution adopted by this invention to solve this technical problem is:

[0006] A deep-sea environment simulation test device includes a high-pressure simulation chamber and a measurement and control device. The high-pressure simulation chamber includes a high-pressure pump station and a high-pressure chamber body for simulating a deep-sea high-pressure environment. The high-pressure chamber body is equipped with a simulation device, which includes a motion simulation component and a crack simulation component. The motion simulation component is used to generate a water flow with controllable speed by rotation, and the crack simulation component is used to generate pre-fabricated cracks of different sizes. The measurement and control device includes a control component and a data acquisition component. The control component includes an industrial computer, a water flow simulation control module electrically connected to the motion simulation component, and a crack simulation control module electrically connected to the crack simulation component. The data acquisition component is used to record parameters inside the high-pressure chamber and the state parameters of the test object.

[0007] Furthermore, in some embodiments of the present invention, the motion simulation component includes a support, an outer fixed cylinder connected to the support, an inner rotating cylinder located inside the outer fixed cylinder, a rotating component connected to the inner rotating cylinder, a gap located between the inner wall of the outer fixed cylinder and the outer wall of the inner rotating cylinder, the outer fixed cylinder having an inner cavity, the outer wall of the outer fixed cylinder having a first mounting hole communicating with the inner cavity, an arc-shaped base plate connected to the first mounting hole, and a motion simulation test object connected to the inner wall of the arc-shaped base plate.

[0008] Furthermore, in some embodiments of the present invention, the support includes a support top plate, a support middle plate, a support bottom plate, a first support column connected between the support top plate and the support middle plate, a second support column connected between the support middle plate and the support bottom plate, the outer fixed cylinder being located between the support top plate and the support middle plate, and the rotating assembly including a drive part located on the support bottom plate, a drive shaft connected to the drive part, and a main shaft assembly connected to the drive shaft and the inner rotating cylinder.

[0009] Furthermore, in some embodiments of the present invention, the outer wall of the outer fixed cylinder is fixed to the first support column, and the main shaft assembly includes a main shaft, a coupling connected to the drive shaft and the main shaft, a first bearing located on the top plate of the support and connected to the main shaft, and a second bearing located on the middle plate of the support and connected to the main shaft. The main shaft passes through the middle plate of the support, the outer fixed cylinder, the inner rotating cylinder, and the top plate of the support, respectively.

[0010] Furthermore, in some embodiments of the present invention, the crack simulation component includes a push rod assembly fixed to the middle plate of the support, a connecting rod connected to the push rod assembly, and a clamping assembly connected to the connecting rod. The outer wall of the outer fixed cylinder is provided with a second mounting hole communicating with the inner cavity of the outer fixed cylinder, and the clamping assembly is embedded into the second mounting hole.

[0011] Furthermore, in some embodiments of the present invention, the push rod assembly includes a linear stroke motor, a push rod connected to the linear stroke motor and the connecting rod respectively, and a watertight housing connected to the outside of the linear stroke motor. The connecting rod is provided with a fixing part that cooperates with the outer fixed cylinder. The connecting rod is fixed to the outer wall of the outer fixed cylinder. The clamping assembly includes a base plate connected to the inside of the second mounting hole, a fixed clamp located on the base plate, a movable clamp connected to the connecting rod and movable relative to the fixed clamp, and a crack simulation test object connected between the movable clamp and the fixed clamp.

[0012] Furthermore, in some embodiments of the present invention, the lower end of the connecting rod is connected to the push rod, the middle part of the connecting rod is connected to the outer wall of the outer fixed cylinder through the fixing part, and the upper end of the connecting rod is connected to the movable clamp. In the initial position, the movable clamp is in contact with the fixed clamp. When the linear stroke motor is running, the moving direction of the upper end of the connecting rod is opposite to the moving direction of the push rod.

[0013] Furthermore, in some embodiments of the present invention, the motion simulation component includes a compensator located on the base plate of the support, the high-pressure chamber is provided with a high-pressure chamber cavity into which the simulation device extends, and an end cap covering the opening of the high-pressure chamber cavity, and the measurement and control device is connected to the data port of the end cap.

[0014] Furthermore, in some embodiments of the present invention, the acquisition component includes a clock synchronization module, a multi-channel signal conditioning module, and an acquisition module. The clock synchronization module is used to convert a single clock signal into a multi-channel synchronous clock. The multi-channel signal conditioning module is used for preprocessing the data of each channel. The acquisition module is used to acquire the pressure environment parameters and temperature environment parameters of the high-pressure chamber, the water flow velocity parameters of the motion simulation component, the crack size parameters of the crack simulation component, and the state parameters of the test object.

[0015] Furthermore, another object of the present invention is to provide a control method for a deep-sea environment simulation test device, including the deep-sea environment simulation test device, motion simulation test object, and crack simulation test object as described above, comprising the following steps:

[0016] S1. Install the motion simulation test object and the crack simulation test object onto the motion simulation component and the crack simulation component, respectively;

[0017] S2. After placing the simulation device into the high-pressure chamber and sealing it, connect the measurement and control device to the high-pressure chamber.

[0018] S3. Start the high-pressure pump station to raise the pressure inside the high-pressure chamber to the required simulated test water pressure; the pressurization and depressurization processes can be carried out in stages, and simulated tests can be conducted at different pressure levels. The state parameters of the test object under different pressures, pressurization processes, and depressurization processes can be observed and recorded by the data acquisition components.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. This invention, by installing a simulation device including motion simulation components and crack simulation components within the high-pressure simulation chamber, achieves the simulation of dynamic water flow effects and structural crack defects in the deep-sea environment. This effectively overcomes the technical limitations of existing deep-sea environment simulation test equipment, which can only perform static pressure tests and cannot simulate dynamic environments and complex working conditions. This invention uses a measurement and control device to collect high-pressure chamber parameters and test object state parameters in real time, and combines this with a control module to ensure pressure stability within the high-pressure chamber, avoiding drastic pressure fluctuations caused by motion simulation, thus improving test safety and data reliability.

[0021] 2. The present invention has a simple structure and reliable function. The designed motion simulation component generates a water flow with controllable speed by adjusting the motor speed and confining the water flow between the outer fixed cylinder and the inner rotating cylinder, which can reduce the impact of water flow on the pressure inside the high-pressure chamber.

[0022] 3. The simulation device designed in this invention can not only control the crack simulation component to generate cracks of controllable size under static high pressure, but also perform crack simulation under dynamically adjustable water flow, thus having both dynamic and static crack simulation testing functions.

[0023] 4. The multi-parameter measurement and control device designed in this invention can avoid signal distortion and data errors caused by asynchrony. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a deep-sea environment simulation test device according to the present invention.

[0025] Figure 2 This is a schematic diagram of the simulation device of the present invention.

[0026] Figure 3 This is a side view of the simulation device of the present invention.

[0027] Figure 4 This is a top view of the simulation device of the present invention.

[0028] Figure 5 for Figure 4 AA sectional view.

[0029] Figure 6 This is a schematic diagram of the crack simulation component of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. High-pressure pump station; 2. High-pressure chamber; 3. Motion simulation component; 4. Crack simulation component; 5. Support; 6. Control component; 7. Data acquisition component; 8. Gap; 9. Motor housing; 20. High-pressure chamber cavity; 21. End cap; 30. Rotating component; 31. Drive unit; 32. Outer fixed cylinder; 33. Inner rotating cylinder; 34. Coupling; 35. Drive shaft; 36. Main shaft; 37. First bearing; 38. Second bearing; 39. Arc-shaped base plate; 41. Push rod assembly; 42. Connecting rod; 43. Clamping assembly; 51. Support top plate; 52. Support middle plate; 53. Support bottom plate; 541. First support column; 542. Second support column; 6 1. Industrial control computer; 62. Water flow simulation control module; 63. Crack simulation control module; 71. Clock synchronization module; 72. Multi-channel signal conditioning module; 73. Acquisition module; 91. Motion simulation test object; 92. Crack simulation test object; 100. High-pressure simulation chamber; 200. Measurement and control device; 300. Simulation device; 310. Compensator; 320. Inner cavity of outer fixed cylinder; 321. First mounting hole; 322. Second mounting hole; 360. Spindle assembly; 411. Linear stroke motor; 412. Push rod; 413. Watertight housing; 421. Fixing part; 431. Base plate; 432. Moving clamp; 433. Fixed clamp. Detailed Implementation

[0032] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications in the embodiments of the present invention, such as (up, down, left, right, front, back, etc.), are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0035] Example 1

[0036] like Figures 1 to 6 The deep-sea environment simulation test equipment shown includes a high-pressure simulation chamber 100 and a measurement and control device 200. The high-pressure simulation chamber includes a high-pressure pump station 1 and a high-pressure chamber body 2 for simulating the high-pressure environment of the deep sea. The high-pressure chamber body 2 is equipped with a simulation device 300, which includes a motion simulation component 3 and a crack simulation component 4. The motion simulation component 3 is used to generate a water flow with controllable speed by rotation, and the crack simulation component 4 is used to generate pre-made cracks of different sizes. The measurement and control device 200 includes a control component 6 and a data acquisition component 7. The control component 6 includes an industrial computer 61, a water flow simulation control module 62 electrically connected to the motion simulation component 3, and a crack simulation control module 63 electrically connected to the crack simulation component 4. The data acquisition component 7 is used to record the parameters inside the high-pressure chamber body 2 and the state parameters of the test object.

[0037] This invention, by installing a simulation device including motion simulation components and crack simulation components within the high-pressure simulation chamber, achieves the simulation of dynamic water flow effects and structural crack defects in the deep-sea environment. This effectively overcomes the limitations of existing deep-sea environment simulation test equipment, which can only perform static pressure tests and cannot simulate dynamic environments and complex working conditions. This invention uses a measurement and control device to collect real-time parameters of the high-pressure chamber and the test object's state parameters, combined with a control module to ensure pressure stability within the high-pressure chamber, avoiding drastic pressure fluctuations caused by motion simulation, and improving test safety and data reliability.

[0038] Specifically, the water flow simulation control module is used to precisely adjust and set the water flow velocity generated by the motion simulation component, the crack simulation control module controls the crack simulation component to generate cracks of controllable size, and the multi-parameter acquisition component is used to synchronously record high-pressure environmental parameters, motion parameters, crack parameters, and the state parameters of the test object. An industrial control computer is electrically connected to the water flow simulation control module, the crack simulation control module, and the acquisition component. The operator can acquire data and issue commands in real time through the industrial control computer, achieving real-time data processing and precise control.

[0039] Specifically, the high-pressure chamber is injected with water and connected to the simulation device. The motion simulation component of this invention can generate a water flow with controllable speed, simulating the impact and effect of deep-sea water flow on the test object within the sealed high-pressure chamber, thereby more realistically reproducing the dynamic stress state of the equipment in the actual deep-sea environment. Specifically, the crack simulation component can introduce pre-fabricated cracks of different sizes to simulate structural defects that may occur in the equipment or materials during use, helping to study the crack propagation behavior under high pressure and its impact on equipment safety. Simultaneously, this invention achieves control of each simulation component through the control component in the measurement and control device, and real-time monitoring and recording of environmental parameters and test object state parameters within the high-pressure chamber through the acquisition component. This makes the test process more controllable, repeatable, and data traceable, improving the reliability verification capability and test effectiveness of deep-sea equipment under complex dynamic environments and potential structural defects, effectively overcoming the shortcomings of existing technologies that can only perform static pressure tests and cannot simulate the dynamic environment of the deep sea.

[0040] This invention not only enhances the dynamic simulation capability and environmental adaptability of deep-sea environment simulation test equipment, but also improves the safety and accuracy of the test, which can promote the research and development, testing and safety assessment of deep-sea equipment.

[0041] Example 2

[0042] Based on Example 1, Example 2 also has the following implementation method:

[0043] like Figures 2 to 5 The deep-sea environment simulation test equipment shown includes a motion simulation component 3 comprising a support 5, an outer fixed cylinder 32 connected to the support 5, an inner rotating cylinder 33 located inside the outer fixed cylinder 32, a rotating component 30 connected to the inner rotating cylinder 33, a gap 8 located between the inner wall of the outer fixed cylinder 32 and the outer wall of the inner rotating cylinder 33, the outer fixed cylinder 32 having an outer fixed cylinder inner cavity 320, the outer wall of the outer fixed cylinder 32 having a first mounting hole 321 communicating with the outer fixed cylinder inner cavity 320, an arc-shaped base plate 39 connected to the first mounting hole 321, and a motion simulation test object 91 connected to the inner wall of the arc-shaped base plate 39.

[0044] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, water is injected into the high-pressure chamber and communicates with the inner cavity of the outer fixed cylinder. The present invention uses a motion simulation component consisting of an outer fixed cylinder, an inner rotating cylinder, and a rotating assembly to form a controllable flow channel through the annular gap between the outer fixed cylinder and the inner rotating cylinder. Combined with the rotating assembly to drive the inner rotating cylinder to rotate, a stable and adjustable circumferential water flow is generated between the outer fixed cylinder and the inner rotating cylinder. This avoids the water flow disturbance from causing violent pressure fluctuations in the high-pressure chamber, ensuring the stability and safety of the test pressure, and effectively simulating the dynamic flow field in the deep-sea environment.

[0045] Specifically, the outer fixed cylinder is cylindrical, and the arc-shaped base plate is adapted to the mounting structure of the outer fixed cylinder, which can stably assemble the motion simulation test object. Specifically, when the high-pressure fluid flows in the gap, it can generate a stable and velocity-adjustable circulation or shear flow field, thereby applying a controllable water flow force to the motion simulation test object connected to the inner wall of the arc-shaped base plate, realizing the simulation of dynamic water flow impact, shear force, or circulation environment in the deep sea. At the same time, this structure places the motion simulation test object on the inner wall of the arc-shaped base plate, placing it in the near-wall region of the flow channel, which can more realistically simulate the local flow field effect experienced by the test object when it is close to the seabed or structural wall in the deep sea, improving the relevance and realism of the simulation.

[0046] Furthermore, by adjusting the rotational speed of the rotating component, the fluid velocity within the gap between the inner rotating cylinder and the outer fixed cylinder can be flexibly controlled, thereby achieving regulation of water flow velocity and flow state, and meeting the diverse simulation needs of dynamic water flow environments under different experimental conditions. The motion simulation component of this invention has a compact structure, integrated within the high-pressure chamber, requiring no additional external space, simplifying the overall structure of the equipment, facilitating collaborative work with high-pressure simulation and control systems, and improving the degree of equipment integration.

[0047] Optionally, in some embodiments, the arc-shaped substrate cover is sealed on the first mounting hole, reducing the gap. Water flow near the first mounting hole is transferred to the outside of the outer fixed cylinder, affecting the water flow impact effect around the motion simulation test object.

[0048] Optionally, in some embodiments, a sealing element such as a silicone ring or rubber ring is connected between the arc-shaped substrate and the first mounting hole.

[0049] Optionally, in some embodiments, the arc-shaped substrate covers the first mounting hole, and the arc-shaped substrate is provided with a connection hole for electrical connection between the water flow simulation control module, the acquisition component and the motion simulation test object.

[0050] Optionally, in some embodiments, the motion simulation test object may be one or a combination of sensors, submersibles, resource exploration devices, and materials to be tested.

[0051] Optionally, in some embodiments, the motion simulation test object is a sensor.

[0052] Alternatively, in some embodiments, the motion simulation test object is a combination of a sensor and the material to be tested.

[0053] Example 3

[0054] Based on Example 2, Example 3 also has the following implementation method:

[0055] like Figures 2 to 5The deep-sea environment simulation test equipment shown includes a support 5 comprising a support top plate 51, a support middle plate 52, a support bottom plate 53, a first support column 541 connected between the support top plate 51 and the support middle plate 52, a second support column 542 connected between the support middle plate 52 and the support bottom plate 53, an outer fixed cylinder 32 located between the support top plate 51 and the support middle plate 52, and a rotating assembly 30 comprising a drive part 31 located on the support bottom plate 53, a drive shaft 35 connected to the drive part 31, and a main shaft assembly 360 connected to the drive shaft 35 and the inner rotating cylinder 33.

[0056] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, a layered support structure is adopted. The top plate, middle plate, and bottom plate of the support are interconnected through first and second support columns to form a stable load-bearing frame. This effectively supports the outer fixed cylinder and the internal rotating components, ensuring the rigidity and coaxiality of the overall structure of the motion simulation component under high pressure, and ensuring its structural stability and sealing safety under high pressure. Simultaneously, arranging the outer fixed cylinder between the top plate and the middle plate of the support results in uniform stress distribution, which is beneficial for the reliable installation of the sealing structure.

[0057] Specifically, the rotating assembly adopts a bottom-driven layout, with the drive unit set on the support base plate. It is connected to the main shaft assembly through the drive shaft and drives the inner rotating cylinder to rotate, realizing the power transmission from bottom to top. The drive component is placed at a lower position in the high-pressure chamber, which has strong vibration resistance. It utilizes the hydrostatic pressure distribution characteristics to reduce the pressure differential load on the dynamic seal, providing mechanical support and transmission guarantee for dynamic water flow simulation in a high-pressure closed environment, and improving the system's operational stability and safety under high-pressure test conditions.

[0058] Example 4

[0059] Based on Example 3, Example 4 also has the following implementation method:

[0060] like Figures 2 to 5 The deep-sea environment simulation test equipment shown has an outer fixed cylinder 32 whose outer wall is fixed to the first support column 541. The main shaft assembly 360 includes a main shaft 36, a coupling 34 connected to the drive shaft 35 and the main shaft 36, a first bearing 37 located on the top plate 51 of the support and connected to the main shaft 36, and a second bearing 38 located on the middle plate 52 of the support and connected to the main shaft 36. The main shaft 36 passes through the middle plate 52 of the support, the outer fixed cylinder 32, the inner rotating cylinder 33, and the top plate 51 of the support.

[0061] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, by fixing the outer wall of the outer fixed cylinder to the first support column, the outer fixed cylinder has a stable installation position in the high-pressure simulation chamber, which can effectively resist the vibration and offset generated during the rotation of the inner rotating cylinder, improve the structural stability and concentricity of the entire motion simulation component, ensure the uniformity of the gap between the inner rotating cylinder and the outer fixed cylinder, and thus ensure the stability and controllability of the fluid flow in the flow channel.

[0062] Optionally, in some embodiments, the outer fixed cylinder is fixed to the first support column by a connector, which can be a fastener such as a screw or a snap-fit ​​connection.

[0063] Optionally, in some embodiments, the outer fixed cylinder is fixedly connected to the first support column by welding.

[0064] Furthermore, the main shaft assembly adopts a through-type main shaft structure and connects the drive shaft to the main shaft through a coupling, so that the power generated by the drive unit can be efficiently and directly transmitted to the inner rotating cylinder, realizing precise rotation drive control of it and improving the control accuracy of the motion simulation component on the water flow velocity and flow field state.

[0065] Specifically, the layout of the main shaft penetrating the middle plate of the support, the outer fixed cylinder, the inner rotating cylinder, and the top plate of the support ensures precise positioning of each component and a direct power transmission path. It also facilitates overall assembly and coaxiality calibration, improving equipment assembly efficiency. This arrangement ensures the main shaft remains coaxially aligned as it passes through the outer fixed cylinder, providing a stable rotation center for the inner rotating cylinder and guaranteeing the uniformity of the annular gap between it and the outer fixed cylinder, thereby achieving controllable and stable flow field distribution. The overall transmission system has strong load-bearing capacity and stable operation, making it suitable for long-term, continuous dynamic simulation tests under deep-sea high-pressure environments, thus improving the reliability and testing accuracy of the equipment.

[0066] In addition, a first bearing and a second bearing are respectively installed on the top plate and middle plate of the support frame, providing multi-point support and axial positioning for the main shaft. This effectively reduces radial runout and axial movement of the main shaft during high-speed rotation, enhances the smoothness and reliability of the main shaft transmission, reduces mechanical wear and vibration noise, and extends the service life of the equipment. Specifically, the first and second bearings are distributed at different heights on the support frame, ensuring good rigidity and support strength of the main shaft under long strokes, improving the rotational accuracy and anti-bending ability of the main shaft during high-speed rotation, reducing sway and vibration during operation, facilitating the assembly, debugging, and maintenance of various components, and improving the overall engineering practicality and operational convenience of the structure.

[0067] Optionally, in some embodiments, the spindle and the inner cylinder are connected by one or more matting methods such as mortise and tenon joint, snap-fit ​​connection, fastener connection, riveting, and welding.

[0068] Optionally, in some embodiments, the spindle 36 and the inner rotating cylinder 33 are fixedly connected by means of keyways or interference fits to ensure power transmission.

[0069] Optionally, such as Figure 1 As shown, in order to improve the electrical safety and long-term reliable operation of the rotating component 30 in harsh deep-sea simulated environments such as high pressure, high humidity, and strong corrosion, a motor housing 9 is connected to the outside of the rotating component 30.

[0070] Optionally, in some embodiments, a sealing element such as a silicone ring or rubber ring is connected between the main shaft and the outer fixed cylinder. The outer fixed cylinder is provided with a channel communicating with the high-pressure chamber cavity. This channel is far away from the simulated test object to reduce the impact of water overflow around the test object on the accuracy of the test.

[0071] Optionally, in some embodiments, a small space is left between the main shaft and the outer fixed cylinder for water supply to reduce the impact and wear of the main shaft rotation on the outer fixed cylinder.

[0072] Specifically, the drive unit is a motor, and the output shaft of the drive unit is vertically upward and fixed to the center of the support base plate. The outer fixed cylinder and the inner rotating cylinder are concentric, and the diameter of the inner rotating cylinder is slightly smaller than that of the outer fixed cylinder. The main shaft passes through the first bearing, the support top plate, the outer fixed cylinder, the inner rotating cylinder, the second bearing, and the support middle plate from top to bottom. The first bearing is fixed at the center of the support top plate, and the second bearing is fixed at the center of the support middle plate. The arc-shaped base plate is embedded in the square hole of the outer fixed cylinder, and the inner walls of the two are in contact. The motion simulation test object is attached to the inner wall of the arc-shaped base plate. The output shaft of the drive unit drives the main shaft and the inner rotating cylinder to rotate through the coupling, generating a speed-controllable water flow between the outer fixed cylinder and the inner rotating cylinder.

[0073] Specifically, such as Figure 1 and Figure 5 As shown, the outer fixed cylinder is fixed to the upper side of the middle plate of the bracket by a transverse connecting bracket, and there is space between the bottom of the outer fixed cylinder and the middle plate of the bracket for the installation of the crack simulation component and the second bearing.

[0074] Example 5

[0075] Example 5, based on Example 3, also has the following implementation method:

[0076] like Figures 3 to 6 The deep-sea environment simulation test equipment shown includes a crack simulation component 4, which includes a push rod assembly 41 fixed to the middle plate 52 of the support, a connecting rod 42 connected to the push rod assembly 41, and a clamping assembly 43 connected to the connecting rod 42. The outer wall of the outer fixed cylinder 32 is provided with a second mounting hole 322 communicating with the inner cavity 320 of the outer fixed cylinder, and the clamping assembly 43 is embedded into the second mounting hole 322.

[0077] Furthermore, as a preferred embodiment of the invention and not a limitation thereof, the crack simulation component of the present invention ensures its structural stability and load-bearing capacity within the high-pressure chamber by fixing the push rod assembly to the middle plate of the support. The push rod assembly is connected to the clamping assembly via a connecting rod to achieve force transmission and drive the clamping assembly to move radially, thereby moving the pre-fabricated sample. The clamping assembly is embedded in a second mounting hole provided on the outer wall of the outer fixed cylinder and communicates with the inner cavity of the outer fixed cylinder, so that the test sample is partially exposed to the high-pressure environment, which can realistically simulate the stress response and crack propagation behavior of materials or structures under deep-sea high-pressure conditions when pre-fabricated cracks are present.

[0078] Specifically, the crack simulation assembly enables dynamic loading and in-situ observation of crack initiation and propagation processes while maintaining the overall airtightness of the hyperbaric chamber. Furthermore, the replaceable design of the clamping assembly facilitates the installation of specimens of different sizes, enhancing the flexibility and applicability of the experiment.

[0079] Specifically, the clamping assembly is embedded into the second mounting hole, which can reduce the water flow in the gap from the second mounting hole to the outside of the outer fixed cylinder.

[0080] Optionally, in some embodiments, a seal such as a silicone ring or rubber ring is connected between the clamping assembly and the second mounting hole.

[0081] Example 6

[0082] Example 6, based on Example 5, also has the following implementation method:

[0083] like Figures 3 to 6 The deep-sea environment simulation test equipment shown includes a push rod assembly 41 comprising a linear stroke motor 411, a push rod 412 connected to the linear stroke motor 411 and the connecting rod 42 respectively, and a watertight housing 413 connected to the outside of the linear stroke motor 411. The connecting rod 42 is provided with a fixing part 421 that cooperates with the outer fixed cylinder 32 and is fixed to the outer wall of the outer fixed cylinder 32. The clamping assembly 43 includes a base plate 431 connected to the inside of the second mounting hole 322, a fixed clamping device 433 located on the base plate 431, a movable clamping device 432 connected to the connecting rod 42 and movable relative to the fixed clamping device 433, and a crack simulation test object 92 connected between the movable clamping device 432 and the fixed clamping device 433.

[0084] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, by employing a push rod assembly driven by a linear stroke motor, it is possible to control and stably output the push rod's advancing or retracting motion. Thus, through the linear motion of the push rod, power is transmitted to the clamping assembly via a connecting rod. The connecting rod drives the moving clamp to generate a controllable displacement relative to the fixed clamp, thereby applying directional tensile, compressive, or shearing forces to the crack simulation test object connected between the two, in order to simulate the generation, propagation, or stress state of cracks in materials or structures, and to achieve dynamic simulation of pre-fabricated cracks of different sizes and shapes.

[0085] Specifically, a watertight housing is installed on the outside of the linear stroke motor, which can effectively prevent fluid from the high-pressure chamber from entering the motor, ensuring the electrical safety and long-term reliable operation of the push rod assembly in harsh deep-sea simulation environments such as high pressure, high humidity, and strong corrosion, and improving the overall environmental adaptability and operational stability of the system.

[0086] Specifically, the connecting rod is firmly connected to the outer wall of the outer fixed cylinder through the fixing part, ensuring the rigidity and stability of the force transmission path, ensuring the accurate transmission and control of the stress state during crack simulation, and avoiding inaccurate clamping displacement or uneven force application due to high pressure deformation.

[0087] Specifically, the clamping assembly is embedded in the second mounting hole of the outer fixed cylinder through a base plate. The clamping assembly adopts a structure that combines a fixed clamp and a movable clamp, and is integrated on the base plate inside the second mounting hole on the outer wall of the outer fixed cylinder. This allows the crack simulation test object to be firmly clamped and placed in a predetermined position inside the outer fixed cylinder cavity, so that the crack simulation test object is directly exposed to the deep-sea simulation environment inside the high-pressure chamber cavity, and the pressure-crack coupling effect under actual working conditions is realistically reproduced.

[0088] Specifically, by adjusting the movement of the movable clamp relative to the fixed clamp, the loading state and crack morphology of the crack simulation test object can be flexibly changed, such as simulating opening, slip, or tearing cracks, to achieve simulation of different crack types, loading methods, and propagation processes, thereby enhancing the diversity and engineering representativeness of the test.

[0089] Specifically, the substrate has an opening for the movable clamp to extend into and a sliding space, such as Figure 6 As shown, the sliding space is located between the fixed clamp and the inner wall of the substrate. When the moving clamp moves away from the fixed clamp, it can simulate opening, sliding, or tearing cracks. Specifically, as... Figure 3 and Figure 5 As shown, the direction in which the substrate is mounted and embedded into the second mounting hole is perpendicular to the direction in which the movable clamp slides.

[0090] Optionally, in some embodiments, the crack simulation test object can be one or a combination of sensors, submersibles, resource exploration devices, and materials to be tested.

[0091] Optionally, in some embodiments, the crack simulation test object is a flexible sensor.

[0092] Alternatively, in some embodiments, the crack simulation test object is a combination of a flexible sensor and the material to be tested.

[0093] Optionally, in some embodiments, one end of the flexible sensor is fixed to a fixed clamp, and the other end is connected to a movable clamp.

[0094] Optionally, in some embodiments, a sealing element such as a silicone ring or rubber ring is connected between the movable clamp and the substrate opening.

[0095] Optionally, in some embodiments, the substrate opening is provided with a connection hole for electrical connection between the crack simulation control module, the acquisition component and the crack simulation test object.

[0096] Alternatively, in some embodiments, such as Figure 6 As shown, the fixed clamp is provided with a connection hole for the crack simulation control module, the acquisition component and the crack simulation test object to be electrically connected.

[0097] Optionally, in some embodiments, the fixing part is a connecting hole for the screw to pass through, and the outer fixed cylinder is provided with a matching outer fixed cylinder connecting hole.

[0098] Optionally, in some embodiments, the fixing part is a connecting column, and the outer fixed cylinder is provided with a suitable outer fixed cylinder connecting hole.

[0099] Specifically, in some embodiments, one end of the crack simulation test object is fixed to the movable clamp 432, and the other end is connected to the fixed clamp 433. The linear stroke motor 411 drives the push rod 412 to extend forward, causing the connecting rod 42 to rotate around the central fixed point. The lower end of the connecting rod 42 moves forward, and the upper end moves backward, causing the movable clamp 432 to move away from the fixed clamp 433. By controlling the extension of the linear stroke motor 411, a pre-fabricated crack of controllable size is generated. Conversely, by controlling the retraction of the linear stroke motor 411, the movable clamp 432 returns to its initial position. Crack simulation tests under different pressure environments can be carried out multiple times within the tolerance range of the crack simulation test object.

[0100] Example 7

[0101] Example 7, based on Example 6, also has the following implementation method:

[0102] like Figures 3 to 6The deep-sea environment simulation test equipment shown has a lower end of a connecting rod 42 connected to a push rod 412, a middle part of a connecting rod 42 connected to the outer wall of an outer fixed cylinder 32 via a fixing part 421, and an upper end of a connecting rod 42 connected to a movable clamp 432. In the initial position, the movable clamp 432 is in contact with the fixed clamp 433. When the linear stroke motor 411 is running, the movement direction of the upper end of the connecting rod 42 is opposite to the movement direction of the push rod 412.

[0103] Furthermore, as a preferred embodiment of the invention and not a limitation thereof, the invention forms a lever-type transmission structure with the fixed part as the fulcrum by connecting the lower end of the connecting rod to the push rod, hinged or fixed to the outer wall of the outer fixed cylinder through the fixed part in the middle, and connected to the movable clamp at the upper end. This allows the linear motion of the push rod to be efficiently and stably converted into the relative displacement of the movable clamp, thereby achieving precise loading control of the crack simulation test object. This layout is compact, which helps to reduce the overall structural volume and improve space utilization and assembly convenience. In the initial state, the movable clamp and the fixed clamp are in contact, so that the crack simulation test object can maintain a stable clamping and initial contact state when unloaded, ensuring that the crack simulation test object is in a closed pre-tightened state, avoiding loosening or uneven loading, facilitating sample installation and benchmark state setting before the test, and providing consistent starting conditions for the subsequent loading process, improving the comparability and reliability of test data.

[0104] Specifically, when the linear motor is running, its output pusher moves forward. Because the middle of the connecting rod is constrained by the fixed part, a lever motion with the fixed part as the fulcrum is formed. This causes the upper end of the connecting rod to displace in the opposite direction to the pusher's movement, thereby driving the movable clamp to move backward away from the fixed clamp. This achieves control over the opening or closing of the crack simulation test object. Within a limited space, the short stroke of the pusher can be converted into a large relative displacement of the movable clamp, effectively expanding the loading stroke and range of action without increasing the overall structural dimensions, thus improving the flexibility and applicability of crack simulation testing. Furthermore, this reverse motion relationship, combined with the fixed fulcrum design of the connecting rod, helps to achieve directional force transmission and stable control, enabling the movable clamp to apply controllable tensile, compressive, or shear forces to the crack simulation test object along a preset direction. This simulates the stress state and propagation process of different types of cracks, enhancing the test's relevance and engineering practicality.

[0105] Example 8

[0106] Example 8, based on Example 3, also has the following implementation method:

[0107] like Figure 1The deep-sea environment simulation test equipment shown includes a motion simulation component 3 comprising a compensator 310 located on the support base plate 53, a high-pressure chamber 2 having a high-pressure chamber cavity 20 into which the simulation device 300 extends, and an end cap 21 covering the opening of the high-pressure chamber cavity 20, wherein the measurement and control device 200 is connected to the data port of the end cap 21.

[0108] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the motion simulation component of the present invention is provided with a compensator on the support base plate, which can dynamically absorb or release the medium in the high-pressure chamber cavity when the inner rotating cylinder rotates or the system temperature changes and causes fluid volume fluctuations, effectively suppressing pressure sudden changes caused by the operation of moving parts, maintaining the stability of the high-pressure simulation environment, thereby overcoming the technical problem that dynamic simulation in a closed high-pressure container is prone to cause drastic pressure fluctuations.

[0109] Specifically, the high-pressure chamber is equipped with a high-pressure chamber cavity to accommodate the simulation device, and its opening is sealed by end caps to ensure the pressure-bearing reliability and sealing performance of the overall structure. This enhances the structural compactness and sealing safety of the overall equipment, helps maintain pressure stability within the high-pressure chamber, and improves the realism of deep-sea environment simulation and the accuracy of test data. The measurement and control device establishes an electrical connection with various sensors and actuators inside the chamber through the data port on the end cap, realizing the safe and stable transmission of signals under high-pressure conditions. This not only facilitates the installation and maintenance of the simulation device, but also ensures the real-time acquisition and closed-loop control of key parameters such as water flow velocity, crack state, pressure, and temperature during the test, improving the safety, controllability, and test accuracy of the entire machine under deep-sea high-pressure dynamic simulation conditions.

[0110] Example 9

[0111] Example 9, based on Example 1, also has the following implementation method:

[0112] like Figure 1 The deep-sea environment simulation test equipment shown includes a data acquisition component 7 comprising a clock synchronization module 71, a multi-channel signal conditioning module 72, and a data acquisition module 73. The clock synchronization module 71 is used to convert a single-channel clock signal into a multi-channel synchronous clock to ensure the time consistency of parameter sampling for each channel of the data acquisition module 73. The multi-channel signal conditioning module 72 is used for preprocessing data from each channel. The data acquisition module 73 is used to acquire the pressure environment parameters and temperature environment parameters of the high-pressure chamber 2, the water flow velocity parameters of the motion simulation component 3, the crack size parameters of the crack simulation component 4, and the state parameters of the test object.

[0113] Specifically, by setting a clock synchronization module, the present invention can convert a single clock signal into multiple synchronous clock signals, thereby providing a unified time reference for multiple data acquisition channels in the acquisition system, ensuring strict synchronization of data in each channel in the time dimension, effectively avoiding sampling deviation and data distortion caused by clock asynchrony, improving the time consistency and data reliability of multi-parameter synchronous acquisition, and providing an accurate timing basis for subsequent correlation analysis and comprehensive evaluation of experimental data.

[0114] Specifically, the multi-channel signal conditioning module can perform preprocessing such as filtering, amplification, isolation, and linearization on various types and ranges of signals from different sensors, thereby improving the signal-to-noise ratio and stability of the signals, ensuring that various parameter signals have good quality before being transmitted to the acquisition module, enhancing the acquisition system's adaptability to complex signal environments, protecting the back-end acquisition circuit from interference and damage, and improving the overall signal acquisition quality and operational safety of the system.

[0115] Specifically, the acquisition module can comprehensively collect pressure environment parameters and temperature environment parameters inside the high-pressure chamber, as well as water flow velocity parameters related to the motion simulation component, crack size parameters related to the crack simulation component, and state parameters of the test object. This enables centralized monitoring and data acquisition of multi-physics field, multi-object, and multi-dimensional parameters in deep-sea simulation experiments, providing detailed and accurate data support for comprehensively evaluating the performance, structural response, and safety status of the test object in complex dynamic environments.

[0116] Furthermore, through the collaborative work of the above modules, this invention achieves high-precision, multi-channel, and synchronized acquisition of key environmental and experimental parameters during deep-sea environment simulation experiments, ensuring the integrity, consistency, and traceability of experimental data, thereby improving the monitoring capabilities, analytical depth, and experimental effectiveness of the experimental process.

[0117] Example 10

[0118] Example 10, based on the above examples, also has the following implementation method:

[0119] A control method for a deep-sea environment simulation test device, comprising the deep-sea environment simulation test device, motion simulation test object 91, and crack simulation test object 92 as described above, includes the following steps:

[0120] S1. Install the motion simulation test object 91 and the crack simulation test object 92 onto the motion simulation component 3 and the crack simulation component 4 respectively;

[0121] S2. After placing the simulation device 300 into the high-pressure chamber 2 and sealing it, connect the measurement and control device 200 to the high-pressure chamber 2.

[0122] S3. Activate high-pressure pump station 1 to raise the pressure inside high-pressure chamber 2 to the required simulated test water pressure. The pressurization and depressurization processes can be carried out in stages, with simulation tests conducted at different pressure levels. Observe and record the state parameters of the test object under different pressures, during the pressurization process, and during the depressurization process through data acquisition component 7. The high-pressure fluid generated by the high-pressure pump station is transported to the sealed high-pressure chamber through high-pressure pipelines, thereby simulating the required deep-sea high-pressure environment inside the chamber.

[0123] Specifically, when conducting deep-sea environment simulation experiments, the motion simulation test object and the crack simulation test object are first confirmed to be in place. Then, a watertight cable is used to connect the simulation device to the watertight interface of the end cap of the high-pressure chamber. After the end cap is installed and sealed, the multi-parameter measurement and control device is connected to the end cap. The power is turned on, and the power supply voltage and data link are checked to ensure they are normal. After all modules complete their self-tests, the high-pressure pump station is turned on to raise the pressure inside the high-pressure chamber to the required simulated test water pressure. The pressurization and depressurization processes can be carried out in stages, with simulation experiments conducted at different pressure levels to observe the state parameters of the test objects under different pressures, during the pressurization process, and during the depressurization process.

[0124] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, by installing the motion simulation test object and the crack simulation test object respectively on the corresponding motion simulation component and crack simulation component, the synchronous or independent simulation of the deep-sea dynamic water flow environment and the structural crack defect environment is realized, so that the test object can be tested under composite conditions that are closer to the real service conditions, thereby improving the pertinence and engineering applicability of the test.

[0125] Specifically, the simulation device was placed entirely within the high-pressure chamber and sealed before being connected to the monitoring and control system. This ensured structural integrity, sealing safety, and system controllability under high-pressure conditions, providing a reliable physical basis and control interface for conducting simulation tests under high-pressure conditions, ensuring the safety, stability, and operability of the test process. By activating the high-pressure pump station to raise the pressure within the high-pressure chamber to the required simulated water pressure, and supporting segmented control of the pressurization and depressurization processes, the test could be conducted in stages at different pressure levels. This facilitated the gradual examination of the structural response, performance changes, and failure modes of the test object at different stages such as pressure rise, high-pressure maintenance, and pressure drop, more realistically simulating the complex pressure environment that deep-sea equipment might experience in actual operations, thus enhancing the comprehensiveness and scientific rigor of the test.

[0126] Specifically, by collecting data from the components to record the state parameters of the test object in real time under different pressures and pressure changes, multi-parameter, multi-stage, and high-precision test data can be obtained. This provides detailed evidence for analyzing the mechanical behavior, sealing performance, structural integrity, and functional reliability of the test object under high pressure and dynamic pressure change conditions, thereby improving the effectiveness, traceability, and depth of analysis of the test data.

[0127] This invention features a simple structure and reliable function. The designed motion simulation component generates a controllable water flow by adjusting the motor speed and confining the water flow between the outer fixed cylinder and the inner rotating cylinder, thus reducing the impact of water flow on the pressure inside the high-pressure chamber. The designed crack simulation component can not only control the generation of cracks of controllable size under static high-pressure conditions but also simulate cracks under dynamically adjustable water flow, thus possessing both dynamic and static crack simulation testing capabilities. The designed multi-parameter measurement and control device avoids signal distortion and data errors caused by asynchrony.

[0128] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A deep-sea environment simulation test device, comprising a high-pressure simulation chamber (100) and a measurement and control device (200), characterized in that: The high-pressure simulation chamber includes a high-pressure pump station (1) and a high-pressure chamber body (2) for simulating the high-pressure environment of the deep sea. The high-pressure fluid generated by the high-pressure pump station (1) is transported to the sealed high-pressure chamber body (2) through a high-pressure pipeline. The high-pressure chamber body (2) is equipped with a simulation device (300). The simulation device (300) includes a motion simulation component (3) and a crack simulation component (4). The motion simulation component (3) is used to generate a water flow with controllable speed by rotation. The crack simulation component (4) is used to generate pre-made cracks of different sizes. The measurement and control device (200) includes a control component (6) and a data acquisition component (7). The control component (6) includes an industrial computer (61), a water flow simulation control module (62) electrically connected to the motion simulation component (3), and a crack simulation control module (63) electrically connected to the crack simulation component (4). The data acquisition component (7) is used to record the parameters inside the high-pressure chamber body (2) and the state parameters of the test object. The motion simulation component (3) includes a bracket (5), an outer fixed cylinder (32) connected to the bracket (5), an inner rotating cylinder (33) located inside the outer fixed cylinder (32), a rotating component (30) connected to the inner rotating cylinder (33), a gap (8) between the inner wall of the outer fixed cylinder (32) and the outer wall of the inner rotating cylinder (33), the outer fixed cylinder (32) having an outer fixed cylinder inner cavity (320), the outer wall of the outer fixed cylinder (32) having a first mounting hole (321) communicating with the outer fixed cylinder inner cavity (320), an arc-shaped base plate (39) connected to the first mounting hole (321), and a motion simulation test object (91) connected to the inner wall of the arc-shaped base plate (39).

2. The deep-sea environment simulation test equipment according to claim 1, characterized in that: The support (5) includes a support top plate (51), a support middle plate (52), a support bottom plate (53), a first support column (541) connected between the support top plate (51) and the support middle plate (52), and a second support column (542) connected between the support middle plate (52) and the support bottom plate (53). The outer fixed cylinder (32) is located between the support top plate (51) and the support middle plate (52). The rotating assembly (30) includes a drive part (31) located on the support bottom plate (53), a drive shaft (35) connected to the drive part (31), and a main shaft assembly (360) connected to the drive shaft (35) and the inner rotating cylinder (33).

3. The deep-sea environment simulation test equipment according to claim 2, characterized in that: The outer wall of the outer fixed cylinder (32) is fixed to the first support column (541). The main shaft assembly (360) includes a main shaft (36), a coupling (34) connected to the drive shaft (35) and the main shaft (36), a first bearing (37) located on the top plate (51) of the support and connected to the main shaft (36), and a second bearing (38) located on the middle plate (52) of the support and connected to the main shaft (36). The main shaft (36) passes through the middle plate (52), the outer fixed cylinder (32), the inner rotating cylinder (33), and the top plate (51) of the support.

4. The deep-sea environment simulation test equipment according to claim 2, characterized in that: The crack simulation component (4) includes a push rod assembly (41) fixed to the middle plate (52) of the bracket, a connecting rod (42) connected to the push rod assembly (41), and a clamping assembly (43) connected to the connecting rod (42). The outer wall of the outer fixed cylinder (32) is provided with a second mounting hole (322) communicating with the inner cavity (320) of the outer fixed cylinder. The clamping assembly (43) is embedded into the second mounting hole (322).

5. The deep-sea environment simulation test equipment according to claim 4, characterized in that: The push rod assembly (41) includes a linear stroke motor (411), a push rod (412) connected to the linear stroke motor (411) and the connecting rod (42) respectively, and a watertight housing (413) connected to the outside of the linear stroke motor (411). The connecting rod (42) is provided with a fixing part (421) that cooperates with the outer fixed cylinder (32). The connecting rod (42) is fixed to the outer wall of the outer fixed cylinder (32). The clamping assembly (43) includes a base plate (431) connected to the inside of the second mounting hole (322), a fixed clamp (433) located on the base plate (431), a movable clamp (432) connected to the connecting rod (42) and movable relative to the fixed clamp (433), and a crack simulation test object (92) connected between the movable clamp (432) and the fixed clamp (433).

6. The deep-sea environment simulation test equipment according to claim 5, characterized in that: The lower end of the connecting rod (42) is connected to the push rod (412), the middle part of the connecting rod (42) is connected to the outer wall of the outer fixed cylinder (32) through the fixing part (421), and the upper end of the connecting rod (42) is connected to the movable clamp (432). In the initial position, the movable clamp (432) is in contact with the fixed clamp (433). When the linear stroke motor (411) is running, the moving direction of the upper end of the connecting rod (42) is opposite to the moving direction of the push rod (412).

7. The deep-sea environment simulation test equipment according to claim 2, characterized in that: The motion simulation component (3) includes a compensator (310) located on the support base plate (53), the high-pressure chamber (2) is provided with a high-pressure chamber cavity (20) into which the simulation device (300) extends, and an end cap (21) covering the opening of the high-pressure chamber cavity (20), and the measurement and control device (200) is connected to the data port of the end cap (21).

8. The deep-sea environment simulation test equipment according to claim 1, characterized in that: The acquisition component (7) includes a clock synchronization module (71), a multi-channel signal conditioning module (72), and an acquisition module (73). The clock synchronization module (71) is used to convert a single clock signal into a multi-channel synchronous clock. The multi-channel signal conditioning module (72) is used for preprocessing the data of each channel. The acquisition module (73) is used to acquire the pressure environment parameters, temperature environment parameters, water flow velocity parameters of the motion simulation component (3), crack size parameters of the crack simulation component (4), and state parameters of the test object of the high-pressure chamber (2).

9. A control method for a deep-sea environment simulation test device, characterized in that: The test includes the deep-sea environment simulation test equipment, motion simulation test object (91), and crack simulation test object (92) as described in any one of claims 1-8, and includes the following steps: S1. Install the motion simulation test object (91) and the crack simulation test object (92) onto the motion simulation component (3) and the crack simulation component (4) respectively. S2. After placing the simulation device (300) into the high-pressure chamber (2) and sealing it, connect the measurement and control device (200) to the high-pressure chamber (2). S3. Turn on the high pressure pump station (1) to raise the pressure inside the high pressure chamber (2) to the required simulated test water pressure; the pressurization and depressurization processes can be carried out in stages, and simulated tests can be carried out at different pressure levels. The state parameters of the test object under different pressures, pressurization processes and depressurization processes can be observed and recorded by the acquisition component (7).

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