A test apparatus for simulating actual marine service environment and its usage method

Abstract

This invention belongs to the field of underwater vehicle testing technology, specifically relating to a testing device and its method for simulating actual marine service environments. The testing device includes a housing, a base plate detachably mounted to the housing, multiple simulation areas set on the base plate or the side wall of the housing, a wave-generating mechanism and a water depth / pressure simulation mechanism mounted on the side wall of the housing, a sea breeze simulation mechanism mounted on the housing, a first lighting module, and several first visual capture modules. This invention uses a wave-generating mechanism, a water depth / pressure simulation mechanism, and a sea breeze simulation mechanism to create a marine service environment. Multiple simulation areas are set on the base plate or the side wall of the housing. Several three-dimensional lifting columns are adjusted in height relative to the polygonal submerged surface through corresponding telescopic drive mechanisms to simulate seabed topography, providing different working environments for the test object. This solves the problem in existing technologies where the simulated marine environment differs significantly from reality, resulting in the inability to optimize the shape design and comprehensively evaluate service performance.

Description

Technical Field

[0001] This invention belongs to the field of underwater vehicle testing technology, specifically relating to a testing device and its method of use that simulates the actual marine service environment. Background Technology

[0002] In recent years, underwater vehicles (UVs) have been widely used in civilian and military fields, undertaking tasks such as marine environmental monitoring and seabed mapping. However, complex seabed topography, alternating hot and cold liquid flow environments, and the salt spray corrosion of seawater itself can cause adverse effects on UVs, such as poor navigation stability and surface corrosion damage. In particular, there are challenging problems such as attitude adjustment and hovering under multi-factor coupled environments, trajectory disturbance when multiple test objects are working simultaneously, navigation stability under complex terrain, and trajectory planning under complex operating conditions. Therefore, it is necessary to design an effective means to simulate a certain environment in marine service to test and evaluate the corrosion and aging performance of UVs. For example, patent CN104155233B discloses a test device simulating a splash zone, and patent CN202494622U discloses an accelerated corrosion test device for simulating tidal range environments.

[0003] However, there is no existing experimental device that can couple multiple factors such as complex terrain, ambient temperature, seawater flow velocity, wind direction and direction, water depth and pressure, and salt spray corrosion. Furthermore, it is impossible to conduct relevant research on the navigation planning problem of individual objects and the trajectory disturbance coupling problem of group objects under complex terrain. As a result, it is impossible to conduct comprehensive evaluation of shape optimization design, resistance to interference under complex working conditions, and the resistance of manufacturing materials to high temperature, corrosion, and high-speed coupling environments. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, such as targeted design, inability to optimize shape design, and comprehensive evaluation of resistance to complex working conditions and corrosion resistance of manufacturing materials. This invention provides a test device and its usage method that decouples the complex marine environment into multiple factors, including complex topography, ambient temperature, seawater flow velocity, wind direction and distance, water depth and pressure, and salt spray corrosion, and designs targeted solutions for each factor, ultimately coupling them into a test device that simulates the actual marine service environment.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] As a first aspect, a test device for simulating an actual marine service environment includes a box, a base plate detachably installed with the box, multiple simulation areas disposed on the base plate or the side wall of the box, a wave-making mechanism and a water depth and pressure simulation mechanism installed on the side wall of the box, a sea breeze simulation mechanism installed on the box, a first lighting module distributed on the box, and a number of first visual capture modules installed on the base plate and the inner wall of the box.

[0007] Each of the simulated areas includes a polygonal sunken surface disposed on the inner surface of the base plate or the inner wall of the box, a plurality of telescopic drive mechanisms vertically and fully disposed on the polygonal sunken surface, a three-dimensional lifting column fixedly connected to the telescopic ends of some of the telescopic drive mechanisms, a second vision capture module fixedly connected to the telescopic ends of another portion of the telescopic drive mechanisms, a temperature adjustment module evenly distributed on the polygonal sunken surface, and a plurality of foaming modules installed on the polygonal sunken surface; the temperature adjustment module is installed on the three-dimensional lifting column at the corresponding position;

[0008] The three-dimensional lifting columns simulate different ocean seabed topography in the height direction through the corresponding telescopic drive mechanism; the second visual capture modules are distributed and installed on the edge of the polygonal sinking surface, and the second lighting modules are evenly distributed on the polygonal sinking surface. The second lighting modules are installed on the top or side of the three-dimensional lifting column at the corresponding position.

[0009] Furthermore, the multiple simulated regions have different shapes, and the polygonal sunken surface includes one of a triangular plane, a rectangular plane, a circular plane, and a hexagonal plane.

[0010] Furthermore, the sea breeze simulation mechanism includes:

[0011] A box-side guide rail symmetrically installed on the upper edge of the box body and two box-side slides that slide in cooperation with the box-side guide rail;

[0012] A travel guide rail is fixedly installed between the two box-side slides and slides along the box-side slides on the box-side guide rail;

[0013] The travel slide is slidably connected to the intermediate track.

[0014] At least one fan assembly is fixedly mounted to the travel slide;

[0015] The fan assembly includes a fan mounting body fixedly installed with the travel slide and four sets of fans rotatably mounted around the fan mounting body via spherical bearings; in use, the four sets of fans and the fan mounting body rotate at multiple pitch angles via spherical bearings to simulate different wind directions in the ocean.

[0016] Furthermore, the telescopic drive mechanism includes a base fixedly mounted on the base plate and a miniature electric telescopic push rod with its fixed end fixedly mounted on the base;

[0017] The three-dimensional lifting column and the second vision capture module are installed at the telescopic end of the corresponding miniature electric telescopic push rod.

[0018] Furthermore, when the simulated area is set on the base plate, the first lighting module includes base plate lighting lamps evenly distributed on the base plate and box body light strips surrounding the inner periphery of the box body;

[0019] When the simulated area is set on the side wall of the enclosure, the first lighting module includes side wall lights evenly distributed on the side wall of the enclosure and enclosure light strips surrounding the inner periphery of the enclosure; the enclosure light strips are set between two vertically adjacent simulated areas.

[0020] Furthermore, the temperature control module includes an electric heating rod installed inside the three-dimensional lifting column and a temperature sensor installed on the three-dimensional lifting column; wherein,

[0021] Temperature sensors are not installed on the three-dimensional lifting column equipped with electric heating rods.

[0022] Furthermore, it also includes a salinity adjustment assembly, which includes a salinity regulator installed above the tank, a four-way salt pipe connected to the output port of the salinity regulator, and a salinity meter installed on the base plate; one end of the four-way salt pipe is connected to the output port of the salinity regulator, and the other three ends extend to the water inlet of the wave-making mechanism.

[0023] Furthermore, it also includes a drainage assembly located at the bottom of the housing; the drainage assembly includes a drain outlet located on the housing and a drain screw installed on the drain outlet.

[0024] Furthermore, the wave-making mechanism includes a wave-making pump; the water depth pressure simulation mechanism includes a booster installed on the housing; the wave-making pump and the booster are located on the same vertical plane.

[0025] Furthermore, the three-dimensional lifting column adopts a cuboid structure or a columnar structure with rounded edges.

[0026] Secondly, the method of using the test apparatus for simulating an actual marine service environment as described above includes the following steps:

[0027] Step 1: Adjust the height of several three-dimensional lifting columns in each simulation area to form the required ocean seabed topography;

[0028] Step 2: Inject water into the tank, adjust the temperature of the water in the tank through several temperature adjustment modules, and adjust the salinity of the water in the tank through a salinity adjustment component.

[0029] Step 3: Create waves with a preset speed and waveform using a wave-making mechanism;

[0030] Step 4: Adjust the sea breeze simulation mechanism to simulate the position, blowing distance, and blowing direction of the environmental fluid in the test object;

[0031] Step 5: Set the foaming mechanism in each of the simulation areas to control the bubble rate, density and size of the output bubbles;

[0032] Step Six: Adjust the output pressure of the booster mechanism to simulate the test object at different water depths;

[0033] Step 7: Place the simulated test object into the water inside the tank to begin operation;

[0034] Step 8: Use the first vision capture module and / or the second vision capture module to perform real-time visual capture of the test object's posture and record the data information of the test object at any time; the data information of the test object at any time includes the three-dimensional image when passing through, the forward speed, the salinity of the water, the temperature of the water, and the simulated area it is located in;

[0035] Step 9: After the test is completed, the test object is drained of water. The drainage component is opened to drain the water from the tank, and the test is ready for the next test.

[0036] Specifically, when multiple simulation areas are set on the base plate, different terrains are set for the multiple simulation areas;

[0037] When a test object is in operation, it is used to study the impact of terrain turbulence on the test object's working state;

[0038] When multiple test objects work in a team, the effects of terrain turbulence and track disturbance on the working state of the test objects are studied.

[0039] The beneficial effects of the experimental apparatus for simulating actual marine service environment and its method of use according to the present invention are:

[0040] The experimental apparatus of this invention is equipped with a wave-generating mechanism, a water depth and pressure simulation mechanism, and a sea breeze simulation mechanism to create a marine service environment. Multiple simulation areas are set on the bottom plate or side wall of the enclosure. These simulation areas are fully covered with several telescopic drive mechanisms, the telescopic direction of which is perpendicular to the polygonal sinking surface. Several three-dimensional lifting columns adjust their height relative to the polygonal sinking surface through corresponding telescopic drive mechanisms to simulate seabed topography, providing different working environments for the test object. Temperature regulation devices are installed on some of the three-dimensional lifting columns, and several foaming modules are installed on the polygonal sinking surface. This couples the effects of complex topography, ambient temperature, seawater flow velocity, wind direction and distance, water depth and pressure, and salt spray corrosion on the test object, comprehensively evaluating its service performance in complex marine environments. This solves the problem in existing technologies where the simulated marine environment differs significantly from reality, making it impossible to optimize the shape design and comprehensively evaluate service performance.

[0041] Meanwhile, when multiple simulated areas are adjusted to present different terrains through corresponding telescopic drive mechanisms, multi-selection planning of the test object's trajectory allows for the study of the impact of various terrain turbulence on the test object, especially terrain turbulence coupled with high speed, high temperature, and complex terrain. When the test object is a combination of multiple individual units, the impact of trajectory disturbance on the test object's working state can be simulated, further ensuring that the simulation device of this invention can be used for experimental research on single and multiple test objects, demonstrating its close fit to the actual marine environment and comprehensive detection capabilities. Attached Figure Description

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0043] Figure 1 This is a perspective view of the experimental apparatus in Embodiment 1 of the present invention.

[0044] Figure 2 This is a top view of the experimental apparatus in Embodiment 1 of the present invention.

[0045] Figure 3 This is a partial structural schematic diagram of the experimental apparatus in Embodiment 1 of the present invention.

[0046] Figure 4 This is a schematic diagram of the sea breeze simulation mechanism in Embodiment 1 of the present invention.

[0047] Figure 5 yes Figure 2 Enlarged view of point A in the middle.

[0048] Figure 6 This is a three-dimensional view of any simulated region in Embodiment 1 of the present invention.

[0049] Figure 7 This is a diagram showing the arrangement of the triangular simulated regions in Embodiment 1 of the present invention.

[0050] Figure 8 This is a diagram showing the arrangement of the hexagonal simulated regions in Embodiment 1 of the present invention.

[0051] Figure 9 This is a diagram showing the arrangement of the circular simulated region in Embodiment 1 of the present invention.

[0052] Figure 10 This is a diagram showing the arrangement of the rectangular simulated region in Embodiment 1 of the present invention.

[0053] Figure 11 A schematic diagram of the three-dimensional structure of the three-dimensional lifting column in Embodiment 1 of the present invention.

[0054] Figure 12 This is an installation diagram of the second vision capture module and the telescopic drive mechanism in Embodiment 1 of the present invention.

[0055] Figure 13 This is an installation diagram of the electric heating rod and the corresponding telescopic drive mechanism in Embodiment 1 of the present invention.

[0056] Figure 14 This is an installation diagram of the temperature sensor and the corresponding telescopic drive mechanism in Embodiment 1 of the present invention.

[0057] Figure 15 This is an installation diagram of the second lighting module in Embodiment 1 of the present invention.

[0058] Figure 16 This is a simplified view of the simulated submarine plain landform in Embodiment 1 of the present invention.

[0059] Figure 17 This is a simplified view of the simulated submarine trench topography in Embodiment 1 of the present invention.

[0060] Figure 18 This is a simplified view of the simulated submarine ridge landform in Embodiment 1 of the present invention.

[0061] Figure 19 This is a simplified view of the simulated seafloor hill landform in Embodiment 1 of the present invention.

[0062] Figure 20 This is a flowchart of the method of using the experimental apparatus in Embodiment 1 of the present invention.

[0063] Figure 21 This is a simplified view of the flight path of the test object within the base plate area in Embodiment 1 of the present invention.

[0064] Figure 22 This is a simplified side view of the flight path of the test object in Embodiment 1 of the present invention.

[0065] Figure 23 This is a cross-sectional view of the experimental apparatus in Embodiment 2 of the present invention.

[0066] In the diagram: 1. Box body, 2. Base plate, 3. Simulation area, 31. Polygonal sunken surface, 32. Telescopic drive mechanism, 321. Base, 322. Miniature electric telescopic push rod, 33. Three-dimensional lifting column, 34. Second vision capture module, 35. Temperature adjustment module, 351. Electric heating rod, 352. Temperature sensor, 36. Foaming module, 37. Second lighting module, 4. Wave-making mechanism, 5. Water depth and pressure simulation mechanism, 6. Sea breeze simulation mechanism, 61. Box side guide rail, 62. Box side slide, 63. Travel guide rail, 64. Travel slide, 65. Fan assembly, 651. Fan mounting body, 652. Fan, 7. First lighting module, 71 / 71-1. Box body light strip, 8. First vision capture module, 9. Salinity adjustment assembly, 91. Salinity regulator, 92. Four-way salt pipe, 93. Salinity meter, 10. Drainage assembly, 102. Drainage screw. Detailed Implementation

[0067] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0068] like Figure 1 and Figure 20 The specific embodiment of the test device method for simulating the actual marine service environment of the present invention shown includes a box 1, a base plate 2 detachably installed with the box 1, multiple simulation areas 3 set on the base plate 2 or the side wall of the box 1, a wave-making mechanism 4 and a water depth and pressure simulation mechanism 5 installed on the side wall of the box 1, a sea breeze simulation mechanism 6 installed on the box 1, a first lighting module 7 distributed on the box 1, and a number of first visual capture modules 8 installed on the base plate 2 and the inner wall of the box 1. Further, in this embodiment, any simulation area 3 includes a polygonal sinking surface 31 set on the inner surface of the base plate 2 or the inner wall of the box 1, a number of telescopic drive mechanisms 32 vertically and fully laid on the polygonal sinking surface 31, a three-dimensional lifting column 33 fixedly connected to the telescopic ends of some of the telescopic drive mechanisms 32, a second visual capture module 34 fixedly connected to the telescopic ends of another part of the telescopic drive mechanisms 32, a temperature adjustment module 35 evenly distributed on the polygonal sinking surface 31, and a number of foaming modules 36 installed on the polygonal sinking surface 31; the temperature adjustment module 35 is installed on the three-dimensional lifting column 33 at the corresponding position.

[0069] In this simulation, several three-dimensional lifting columns 33, through corresponding telescopic drive mechanisms 32, extend and retract in the height direction to simulate different elevations of the ocean floor. Several second visual capture modules 34 are distributed and installed on the edges of a polygonal sunken surface 31. Second lighting modules 37 are evenly distributed on the polygonal sunken surface 31, and are installed on the top or sides of the three-dimensional lifting columns 33 at corresponding positions. Several second visual capture modules 34 are distributed along the edges of the polygonal sunken surface 31 within a simulation area 3, such as... Figure 4 As shown, the second visual capture module 34 is installed on the telescopic end of the corresponding telescopic drive mechanism 32. The second visual capture module 34 can be height adjusted along with the corresponding telescopic drive mechanism 32 to accurately capture the 3D view of the test object and its motion state at different times.

[0070] The experimental apparatus of this invention is equipped with a wave-generating mechanism 4, a water depth and pressure simulation mechanism 5, and a sea breeze simulation mechanism 6 to form a marine service environment. Multiple simulation areas 3 are set on the bottom plate 2 or the side wall of the box 1. Several telescopic drive mechanisms 32 are fully installed on the simulation areas 3. The telescopic drive mechanisms 32 extend and retract in a direction perpendicular to the polygonal sunken surface 31. Several three-dimensional lifting columns 33 are adjusted in height relative to the polygonal sunken surface 31 via corresponding telescopic drive mechanisms 32 to simulate seabed topography, providing different working environments for the test object. Temperature regulation devices are installed on some of the three-dimensional lifting columns 33, and several foaming modules 36 are installed on the polygonal sunken surface 31. This couples the effects of complex topography, ambient temperature, seawater flow velocity, wind direction and distance, water depth and pressure, and salt spray corrosion on the test object, comprehensively evaluating its service performance in complex marine environments. This solves the problems in existing technologies where incomplete simulation of the marine environment prevents comprehensive evaluation of shape optimization design, resistance to complex working conditions, and the resistance of manufacturing materials to high temperatures, corrosion, and high-speed coupling environments.

[0071] It should be further noted that the multiple simulation regions 3 have different shapes, and the polygonal sunken surface 31 includes one of the following: triangular plane, rectangular plane, circular plane and hexagonal plane.

[0072] Example 1

[0073] This embodiment includes four simulation regions 3, whose corresponding polygonal sunken surfaces 31 are respectively triangular planes, rectangular planes, circular planes and hexagonal planes, and all four simulation regions 3 are set on the base plate 2.

[0074] like Figures 1 to 15As shown, in this embodiment, the base plate 2 and the box 1 are detachably connected. The inner surface of the base plate 2 has four simulation areas 3 of different shapes. Each simulation area 3 includes a polygonal sunken surface 31, and several telescopic drive mechanisms 32 are arranged inside the polygonal sunken surface 31. Most of the telescopic drive mechanisms 32 are fixedly connected to the telescopic ends of three-dimensional lifting columns 33, and a small portion of the telescopic drive mechanisms 32 are fixedly connected to the telescopic ends of second vision capture modules 34. Several foaming modules 36 and temperature adjustment modules 35 are evenly distributed on the polygonal sunken surface 31. The temperature adjustment modules 35 are installed on the three-dimensional lifting columns 33 at corresponding positions. The second vision capture modules 34 are distributed and installed on the edges of the polygonal sunken surface 31. Second lighting modules 37 are evenly distributed on the polygonal sunken surface 31. The second lighting modules 37 are installed on the top or side of the three-dimensional lifting columns 33 at corresponding positions. In specific applications, one part of the telescopic drive mechanism 32 controls the raising and lowering of the three-dimensional lifting column 33 within a certain distance. The area can simulate complex ocean seabed topography by moving the three-dimensional lifting column 33 up and down at different heights. Another part of the telescopic drive mechanism 32 controls the position of the second visual capture module 34 in the water to adapt to the ocean seabed topography simulated in the simulated area 3, enabling accurate information capture of the test object. In this embodiment, the three-dimensional lifting column 33 adopts a cuboid structure or a columnar structure with rounded edges. To reduce the influence of water on the three-dimensional lifting column 33 and the mutual influence between the three-dimensional lifting columns 33, the three-dimensional lifting column 33 in this embodiment can be selected as a columnar structure with rounded edges.

[0075] The marine seabed topography in this embodiment includes seabed plains, seabed trenches, seabed ridges, and seabed hills. Specifically, the height of the three-dimensional lifting column 6 is adjusted as follows: Figures 16 to 19 Specifically, in this first embodiment, the triangular simulation area is used to simulate the seafloor plain landform, the hexagonal simulation area is used to simulate the seafloor trench landform, the circular simulation area is used to simulate the seafloor ridge landform, and the rectangular simulation area is used to simulate the seafloor hill landform.

[0076] When the simulation area 3 is set on the base plate 2, a first lighting module 7 and a second lighting module 37 are provided to ensure clear shooting by the first visual capture module 8 and the second visual capture module 34. Lights are also provided at the four corners of the first visual capture module 8 and the second visual capture module 34, enabling multiple second visual capture modules 34 and / or second visual capture modules 34 within the range of the test object to perform visual capture. In this embodiment, both the second visual capture modules 34 and the second visual capture module 34 use cameras. To meet the shooting requirements, the distribution of the box light strip 71 around the inner perimeter of the box 1 is arranged according to the shooting requirements. When the simulation area 3 is set on the base plate 2, the first lighting module 7 includes a box light strip 71 surrounding the inner perimeter of the box 1, with the box light strip 71 positioned close to the base plate 2. Second lighting modules 37 are provided on the top and sides of the three-dimensional lifting columns 33 within the simulation area 3, evenly distributed within the area, to provide light when the environment is dark. These modules work in conjunction with the camera lights on the first visual capture module 8 and the second visual capture module 34 to perform real-time visual capture of the test object's posture.

[0077] like Figures 11 to 15 As shown, the telescopic drive mechanism 32 in this embodiment includes a base 321 fixedly installed on the base plate 2 and a miniature electric telescopic push rod 322 fixedly installed on the base 321. The three-dimensional lifting column 33 and the second vision capture module 34 are installed on the telescopic end of the corresponding miniature electric telescopic push rod 322.

[0078] In this first embodiment, the temperature control module 35 includes an electric heating rod 351 installed inside the three-dimensional lifting column 33 and a temperature sensor 352 installed on the three-dimensional lifting column 33; wherein, the temperature sensor 352 is not installed on the three-dimensional lifting column 33 where the electric heating rod 351 is installed. Specifically, as shown... Figure 13 and Figure 14 As shown, some of the three-dimensional lifting columns 33 in the simulation area 3 are equipped with electric heating rods 351, which are evenly distributed in the simulation area 3. Temperature sensors 352 are provided on the top of the three-dimensional lifting columns 33 that are adjacent to or not adjacent to the three-dimensional lifting columns 33 equipped with electric heating rods 351, which are evenly distributed in the simulation area 3. The heating time and heat preservation time of the electric heating rods 351 are controlled in real time according to the detection values ​​and experimental requirements.

[0079] like Figure 2 and Figure 3 As shown, foaming mechanisms are provided in both the simulation area 3 and the surface of the base plate 2. The foaming mechanisms here are foaming machines, which are evenly distributed in the simulation area 3. Of course, to ensure the accuracy of the simulation, foaming machines can also be evenly set on the inner surface of the base plate 2. Bubbles of different rates, densities and sizes are output through the air outlet at the top of the foaming machine to simulate seabed bubbles and to study the cavitation corrosion of the test object by the bubbles.

[0080] In this embodiment, the water depth and pressure simulation mechanism 5 uses a booster, and the wave-making mechanism 4 uses a wave-making pump. The booster and the wave-making pump are located on the same vertical surface. The booster is located to the lower right of the wave-making pump and above the light strip 71 on the housing, used to simulate different water depth pressures. Figure 7 As shown, the simulation device in this embodiment also includes a drainage assembly 10 located at the bottom of the tank 1. The drainage assembly 10 includes a drain outlet on the tank 1 and a water outlet screw 102 installed on the drain outlet. A drain hole is provided at the connection between the bottom plate 2 and the tank 1. The drain hole is sealed by the water outlet screw 102. A sealing ring is provided at the contact point between the water outlet screw 102 and the tank 1. A wave generator pump is provided on the tank 1 and is connected to the tank 1 by multiple bolts. After the simulation experiment is completed, the water outlet screw 102 on the drain outlet is opened to drain the water in the tank.

[0081] like Figure 3 and Figure 4 As shown, the sea breeze simulation mechanism 6 includes a box-side guide rail 61 symmetrically installed on the upper edge of the box body 1, two box-side slides 62 that slide in cooperation with the box-side guide rail 61, a travel guide rail 63, a travel slide 64, and at least one fan assembly 65. The travel guide rail 63 is fixedly installed between the two box-side slides 62 and slides on the box-side guide rail 61 following the box-side slides 62. The travel slide 64 is slidably connected to the middle rail. In this embodiment, there are two fan assemblies 65, and the two fan assemblies 65 are fixedly installed with the travel slide 64.

[0082] In a preferred embodiment, the fan assembly 65 in this first embodiment includes a fan mounting body 651 fixedly mounted to the travel slide 64 and four sets of fans 652 rotatably mounted around the fan mounting body 651 via spherical bearings. In use, the four sets of fans 652 rotate with the fan mounting body 651 at multiple pitch angles via the spherical bearings to simulate different wind directions in the ocean. In this first embodiment, the use of spherical bearings allows for adjustment of the pitch angle of the fans 652. By adjusting the pitch angle of the fans 652, the actual sea breeze direction can be simulated. By adjusting the travel of the fans 652 mounted on the travel guide rail 63, the wind path of the sea breeze can be simulated, providing different working environments for the test object and facilitating improvements and optimizations.

[0083] The experimental apparatus of this embodiment also includes a salinity adjustment component 9. The salinity adjustment component 9 includes a salinity regulator 91 installed on the top of the tank 1, a four-way salt pipe 92 connected to the output port of the salinity regulator 91, and a salinity meter 93 installed on the base plate 2. One end of the four-way salt pipe 92 is connected to the output port of the salinity regulator 91, and the other three ends extend to the inlet of the wave-making mechanism 4. Specifically, a salinity meter 93 is provided on the inner surface of the base plate 2, and a salinity regulator 91 is provided on the top of the tank 1. The salinity regulator 91 is connected to the wave-making pump through the four-way salt pipe 92, which is connected to the inlet of the wave-making pump. The salinity of the salinity obtained by the salinity regulator 91 through the salinity meter 93 is used to prepare a salt solution of appropriate proportion and input it into the water tank through the wave-making pump.

[0084] Based on the method of using the experimental apparatus of Embodiment 1 above, such as Figure 20 As shown, it includes the following steps:

[0085] Step 1: Adjust the height of several three-dimensional lifting columns 33 in each simulation area 3 to form the required ocean seabed topography;

[0086] Step 2: Inject water into tank 1, adjust the temperature of the water in tank 1 through several temperature adjustment modules 35, and adjust the salinity of the water in tank 1 through salinity adjustment component 9;

[0087] Step 3: The wave-generating mechanism 4 generates waves with a preset speed and waveform;

[0088] Step 4: Adjust the sea breeze simulation mechanism 6 to simulate the position, blowing distance, and blowing direction of the environmental fluid in the test object;

[0089] Step 5: Set the foaming mechanism in each simulation region 3 to control the bubble rate, density and size of the output bubbles;

[0090] Step Six: Adjust the output pressure of the booster mechanism to simulate the test object at different water depths;

[0091] Step 7: Place the simulated test object into the water inside chamber 1 to begin operation;

[0092] Step 8: Use the first visual capture module 8 and / or the second visual capture module 34 to perform real-time visual capture of the test object's posture and record the data information of the test object at any time. The data information of the test object at any time includes the three-dimensional image when passing through, the forward speed, the salinity of the water, the temperature of the water, and the simulated area 3 it is located in.

[0093] Step 9: After the test is completed, drain the water from the test object and open the drainage component 10 to drain the water from the tank 1, and wait for the next test process.

[0094] In this embodiment, when multiple simulation areas 3 are set on the base plate 2, different terrains are set in the multiple simulation areas 3. When a test object is working, the influence of terrain turbulence on the working state of the test object is studied. When multiple test objects work in a team, the influence of terrain turbulence and track disturbance on the working state of the test object is studied.

[0095] Combination Figure 21 Note that the test subject can travel around or through the area shown on the base plate 2 of this invention, and can also move horizontally or vertically within the area. The trajectory map can be combined with... Figure 21 The shown route generates multiple motion paths, controlling four areas of the base plate 2 to form different terrains. One or more test objects can enter and work within these areas. When a single test object is working, the impact of terrain turbulence on its working state is studied. When multiple test objects work in a team, the impact of terrain turbulence and trajectory disturbance on their working state is studied. (Combined with the appendix...) Figure 22 The triangular area represents a plain, and the hexagonal area represents a ridge. When the test subject passes through this terrain area along the flight path, it can choose to detour through the hexagonal and triangular areas, go straight through the hexagonal and triangular areas, or choose to pass through both in a combination. By using multiple passage methods, the impact of various terrain turbulence on the test subject can be studied. The test subject is visually captured by the first visual capture module 8 and the second visual capture module 34 set on the three-dimensional lifting column 33, the inner surface of the box 1, and the surface of the base plate 2 within the area. This allows for the study of the impact of temperature and speed in various environments on the test subject's motion state and hovering posture.

[0096] The specific usage process of this embodiment in actual work is as follows: First, the required working environment conditions of the test object are determined. The three-dimensional lifting column 33 in the area of ​​the base plate 2 is controlled by a micro motor push rod to form the required ocean seabed topography according to the required conditions. The water tank is filled with an appropriate amount of water according to the required working environment conditions of the test object. The salinity and temperature of the water are adjusted in real time by controlling the electric heating rod 351 and the salinity regulator 91 according to the required simulated environmental conditions. The wave pump forms the required rate and waveform of the waves. By controlling the speed and pitch angle of the top fan 652 and the stroke of the fan mounting body 651 on the stroke guide rail 63, the required direction and range of the sea breeze for the test object are formed, which in turn affects the speed of the fluid in the environment where the underwater test object is located. According to the required sea breeze range, one or both sets of fans 652 can be selected to work. The bubble rate, bubble density and bubble size of the bubbles output from the air outlet are controlled by the foam generator set in the control area and on the surface of the base plate 2. The pressure booster is adjusted to simulate different pressures so that the test object is in different water depths. The test object is placed underwater for operation. Cameras installed in various areas of the bottom, on the inner surface of the tank 1, and on the surface of the bottom plate 2 capture the test object's real-time posture visually, observing and recording the 3D image and forward speed as the test object passes. The tank's light strip 71 and illumination lamps provide light in low-light conditions, aiding in the real-time posture capture and recording of the 3D image and forward speed. A salinity meter 93 and a temperature sensor 352 record the salinity and temperature of the test object in the underwater working environment. After completing the work and data recording in the designated area, the test object is brought out of the water, and the drain screw 102 is opened to drain the liquid inside the tank 1 through the drain hole. In this embodiment, the three-dimensional lifting column 33, salinity regulator 91, electric heating rod 351, wave pump, and fan 652 can be controlled according to actual working needs to simulate different working conditions, allowing the test object to work in simulated underwater environments for experimentation. Furthermore, when multiple simulated areas 3 are adjusted to different terrains through the corresponding telescopic drive mechanism 32, multiple selection planning of the test object's trajectory can be carried out. This allows for the study of the impact of various terrain turbulence on the test object, as well as the study of the impact of trajectory disturbance on the test object's working state. This further ensures the simulation device of the present invention is consistent with the actual marine environment and has comprehensive detection capabilities.

[0097] Example 2

[0098] like Figure 23 As shown, the difference between this embodiment two and embodiment one is that the four simulated regions 3 are arranged opposite each other on two sides of the box 1, as follows: Figure 11As shown, the three-dimensional lifting column 33 in the simulated area 3 on the side of the box 1 is arranged in the same manner as in Embodiment 1, and is equipped with temperature sensor 352, electric heating rod 351, etc. Foaming machines are also installed in the simulated area 3, on the polygonal sunken surface 31 in the simulated area 3, and on the inner surface of the base plate 2. It should be noted that in this Embodiment 2, when the simulated area 3 is set on the side wall of the box 1, the first lighting module 7 includes a box light strip 71 surrounding the inner perimeter of the box 1; the box light strip 71 is set between two vertically adjacent simulated areas 3. Here, the box light strip 7125 needs to be adjusted to the required position. Figure 11 The location shown.

[0099] The actual usage process of this embodiment 2 is as follows: First, determine the required working environment conditions of the test object. The three-dimensional lifting column 33 in the simulated area 3 on the side of the box 1 forms the required ocean seabed topography according to the required conditions, controlled by a micro motor push rod. The water tank is filled with an appropriate amount of water according to the required working environment conditions of the test object. The salinity and temperature of the water are adjusted to the required simulated conditions by the electric heating rod 351 and the salinity regulator 91 according to the required simulated environmental conditions. The wave pump forms the required speed and waveform of the waves. By controlling the speed and pitch angle of the top fan 652 and the stroke of the fan mounting body 651 on the stroke guide rail 63, the required blowing direction and range of the sea breeze for the test object are formed. According to the required sea breeze range, one or both sets of fans 652 can be selected to work, thereby affecting the speed of the fluid in the environment where the test object is located. The bubble rate, bubble density and bubble size of the bubbles output from the air outlet are controlled by the foaming machine set in the control area and on the surface of the bottom plate 2. The pressure is adjusted to simulate different pressures, so that the test object is in different water depths. The test object is brought underwater for operation. Cameras installed in various areas at the bottom, on the inner surface of the tank 1, and on the surface of the bottom plate 2 are used to visually capture the real-time posture of the test object. The three-dimensional image and forward speed of the test object as it passes through are observed and recorded. In this second embodiment, the corresponding height of the tank light strip 71 is adjusted. The lighting in the first embodiment remains unchanged in the second embodiment. It is also installed on the top of the three-dimensional lifting column 33 and evenly distributed in the area. The tank light strip 71 and the lighting provide light sources when the environment is dark, assisting the camera lighting in visually capturing the real-time posture of the test object. The three-dimensional image and forward speed of the test object as it passes through are observed and recorded. The salinity and temperature of the test object in the underwater working environment are recorded by the salinity meter 93 and the temperature sensor 352. After the work and data recording in the set area are completed, the test object is brought out of the water. The water outlet screw 102 is opened to drain the liquid inside the tank 1 through the drain hole, waiting for the next test process to start.

[0100] Combining Embodiments 1 and 2, this invention ingeniously controls the three-dimensional lifting column 33 using a miniature electric actuator to simulate complex seabed topography in multiple simulated areas 3, providing different working environments for the test object and evaluating its service performance in complex marine environments. This invention features cameras on the outer surface of the three-dimensional lifting column 33, the inner surface of the housing 1, and the surface of the base plate 2. When the test object is working at the bottom, real-time attitude visual capture is performed by multiple first visual capture modules 8 and second visual capture modules within the test object's range, forming a 3D view of the test object and its motion state at different times. Waves of different speeds are generated by the wave-making mechanism 4 to study the impact of different working environments on the test object's working and hovering attitudes. The pitch angle of the fan 652 is adjusted to simulate the actual sea breeze direction, and the stroke of the fan mount 651 on the travel guide rail 63 is adjusted to simulate the sea breeze distance, providing different working environments for the test object and facilitating its improvement and optimization. A foaming machine is installed on the base plate 2 or housing 1 to simulate seabed bubbles and study the cavitation corrosion of the test object caused by these bubbles. The pressurization mechanism is used to simulate pressure at different water depths. This invention includes a salinity meter 93 and a temperature sensor 352. Based on the detected salinity and temperature, the heating and holding times of the electric heating rod 351 can be adjusted. The prepared salt solution is input into the water tank via the salinity adjustment component 9 and the wave-making mechanism 4, thus controlling the salinity and temperature of the water tank. The experimental device of this invention decouples the complex marine environment into multiple factors, including complex topography, ambient temperature, seawater flow velocity, wind direction and direction, water depth and pressure, and salt spray corrosion. Through structural design, it ultimately couples and simulates the complex marine environment, achieving comprehensive, accurate, and controllable simulation of the marine service environment.

[0101] It should be understood that the specific embodiments described above are for illustrative purposes only and are not intended to limit the scope of the invention. Obvious variations or modifications derived from the spirit of the invention are still within the protection scope of the invention.

Claims

1. A test device for simulating actual marine service environment, characterized in that: It includes a housing (1), a base plate (2) detachably mounted to the housing (1), multiple simulation areas (3) set on the base plate (2) or the side wall of the housing (1), a wave-making mechanism (4) and a water depth and pressure simulation mechanism (5) installed on the side wall of the housing (1), a sea breeze simulation mechanism (6) installed on the housing (1), a first lighting module (7) distributed on the housing (1), and several first visual capture modules (8) installed on the base plate (2) and the inner wall of the housing (1); Each of the simulated areas (3) includes a polygonal sunken surface (31) disposed on the inner surface of the base plate (2) or the inner wall of the box (1), a plurality of telescopic drive mechanisms (32) vertically and fully disposed on the polygonal sunken surface (31), a three-dimensional lifting column (33) fixedly connected to the telescopic ends of some of the telescopic drive mechanisms (32), a second visual capture module (34) fixedly connected to the telescopic ends of another part of the telescopic drive mechanisms (32), a temperature adjustment module (35) evenly distributed on the polygonal sunken surface (31), and a plurality of foaming modules (36) installed on the polygonal sunken surface (31); the temperature adjustment module (35) is installed on the three-dimensional lifting column (33) at the corresponding position; Several of the three-dimensional lifting columns (33) simulate different seabed landforms in the height direction by the corresponding telescopic drive mechanism (32); several second visual capture modules (34) are distributed and installed on the edge of the polygonal sinking surface (31), and second lighting modules (37) are evenly distributed on the polygonal sinking surface (31). The second lighting modules (37) are installed on the top or side of the three-dimensional lifting column (33) at the corresponding position.

2. The test apparatus for simulating actual marine service environment according to claim 1, characterized in that: The multiple simulated regions (3) have different shapes, and the polygonal sunken surface (31) includes one of the following: a triangular plane, a rectangular plane, a circular plane, and a hexagonal plane.

3. The test apparatus for simulating actual marine service environment according to claim 1, characterized in that, The sea breeze simulation mechanism (6) includes: Box side guide rails (61) and two box side slides (62) that slide in cooperation with the box side guide rails (61) are symmetrically installed on the upper edge of the box body (1); The travel guide rail (63) is fixedly installed between the two box side slides (62) and slides on the box side guide rail (61) following the box side slides (62); The travel slide (64) is connected to the intermediate track in a sliding fit. At least one fan assembly (65) is fixedly mounted to the travel slide (64); The fan assembly (65) includes a fan mount (651) fixedly mounted to the travel slide (64) and four sets of fans (652) rotatably mounted around the fan mount (651) via spherical bearings. In use, the four sets of fans (652) rotate with the fan mount (651) at multiple pitch angles via spherical bearings to simulate different wind directions in the ocean.

4. The test apparatus for simulating actual marine service environment according to claim 1, characterized in that: The telescopic drive mechanism (32) includes a base (321) fixedly installed on the base plate (2) and a miniature electric telescopic push rod (322) with its fixed end fixedly installed on the base (321); The three-dimensional lifting column (33) and the second visual capture module (34) are installed on the telescopic end of the corresponding miniature electric telescopic push rod (322).

5. The test apparatus for simulating actual marine service environment according to claim 1, characterized in that: When the simulated area (3) is set on the base plate (2), the first lighting module (7) includes a box light strip (71) surrounding the inner periphery of the box (1), and the box light strip (71) is set close to the base plate (2); When the simulated area (3) is set on the side wall of the box (1), the first lighting module (7) includes a box light strip (71) surrounding the inner periphery of the box (1); the box light strip (71) is set between two vertically adjacent simulated areas (3).

6. The test apparatus for simulating actual marine service environment according to claim 1, characterized in that: The temperature regulation module (35) includes an electric heating rod (351) installed inside the three-dimensional lifting column (33) and a temperature sensor (352) installed on the three-dimensional lifting column (33); wherein, Temperature sensors (352) are not installed on the three-dimensional lifting column (33) which is equipped with electric heating rods (351).

7. The test apparatus for simulating actual marine service environment according to claim 5, characterized in that: It also includes a salinity adjustment component (9), which includes a salinity regulator (91) installed above the housing (1), a four-way salt pipe (92) connected to the output port of the salinity regulator (91), and a salinity meter (93) installed on the base plate (2); one end of the four-way salt pipe (92) is connected to the output port of the salinity regulator (91), and the other three ends extend to the water inlet of the wave-making mechanism (4).

8. The test apparatus for simulating actual marine service environment according to claim 1, characterized in that: It also includes a drainage assembly (10) located at the bottom of the housing (1); the drainage assembly (10) includes a drain outlet located on the housing (1) and a drain screw (102) installed on the drain outlet.

9. A method of using a test apparatus for simulating an actual marine service environment according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Adjust the height of several three-dimensional lifting columns (33) in each simulation area (3) to form the required seabed topography; Step 2: Inject water into the box (1), adjust the temperature of the water in the box (1) through several temperature adjustment modules (35), and adjust the salinity of the water in the box (1) through the salinity adjustment component (9); Step 3: Create waves with a preset speed and waveform using the wave-making mechanism (4); Step 4: Adjust the sea breeze simulation mechanism (6) to simulate the position, blowing distance, and blowing direction of the environmental fluid in which the test object is located; Step 5: Set the foaming mechanism in each of the simulation areas (3) and control the bubble rate, density and size of the output bubbles; Step Six: Adjust the output pressure of the booster mechanism to simulate the test object at different water depths; Step 7: Place the simulated test object into the water inside the box (1) and start the test; Step 8: Use the first visual capture module (8) and / or the second visual capture module (34) to perform real-time visual capture of the test object's posture and record the data information of the test object at any time; the data information of the test object at any time includes the three-dimensional image when passing through, the forward speed, the salinity of the water, the temperature of the water, and the simulated area (3) where it is located; Step 9: After the test is completed, the test object drains water. Open the drainage component (10) to drain the water in the tank (1) and wait for the next test process.

10. The method of using the test apparatus for simulating actual marine service environment according to claim 9, characterized in that: When multiple simulation areas (3) are set on the base plate (2), different terrains are set for the multiple simulation areas (3); When a test object is in operation, it is used to study the impact of terrain turbulence on the test object's working state; When multiple test objects work in a team, the effects of terrain turbulence and track disturbance on the working state of the test objects are studied.

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