Ship sailing resistance simulation test device

Abstract

The utility model discloses a ship sailing resistance simulation test device, and relates to the technical field of ship model experiments. The device comprises an outer box, a test mechanism, a fixing mechanism and a simulation mechanism arranged on the outer side of the outer box, the simulation mechanism comprises a water suction pipe, a water discharge pipe, a water injection pipe, a water discharge pipe and a water pump, the water suction pipe is fixedly connected below the right side of the outer box, the water discharge pipe is fixedly connected above the left side of the outer box, and the water pump drives water circulation to simulate ship countercurrent sailing; the fixing mechanism comprises a movable groove, a telescopic pipe, a retention plate, a clamping groove and a spring, the movable groove is formed below the right side of the inner wall of the outer box, the right side of the inner wall of the movable groove is fixedly connected with the telescopic pipe, the retention plate is slidably connected with the inner wall of the movable groove, and the right side is fixed to one end of the telescopic pipe; the test mechanism realizes resistance data acquisition through components such as a motor, a screw rod and a tension sensor. The device expands the resistance simulation test scene, improves the cost performance, reduces the experiment cost, and is suitable for the multi-scene simulation test of the ship navigation resistance.

Description

Technical Field

[0001] This application relates to the field of ship model experiment technology, specifically a ship navigation resistance simulation test device. Background Technology

[0002] Resistance simulation involves testing a ship model to measure the resistance it experiences at different speeds. Ship resistance prediction is a crucial aspect of ship design. Currently, the calculation and prediction of resistance for actual ships primarily relies on ship model tests, which are time-consuming and costly. With the rapid development of computer technology, CFD methods based on fluid dynamics offer greater flexibility and cost-effectiveness.

[0003] Patent CN214241176U discloses a simulation device for measuring the resistance experienced by a ship navigating within a sunshade sphere. This device realistically simulates the physical phenomenon of a ship navigating on a water surface covered with sunshade spheres, while avoiding the drawbacks of large-scale water tanks, such as long construction periods, high construction costs, and complex technology. It optimizes the motion complexity of the resistance experienced by a ship on water covered by shaded spheres, and designs an experimental device for measuring the resistance of a ship navigating within shaded spheres. However, this device can only simulate the navigation resistance under varying numbers of sunshade spheres, and all simulations are conducted under calm water conditions. It cannot simulate the situation of a ship sailing against the current, resulting in a low cost-effectiveness and high experimental cost. Utility Model Content

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this application provides a ship navigation resistance simulation test device, which solves the problems of existing devices being unable to simulate ship sailing against the current, having low cost-effectiveness, and high experimental costs.

[0006] Technical solution

[0007] To achieve the above objectives, this application provides the following technical solution: a ship navigation resistance simulation test device, comprising an outer casing, a test mechanism for testing ship navigation resistance, and a fixing mechanism for fixing underwater terrain models at different water depths during a single voyage. The outer casing is provided with a simulation mechanism for simulating different water flow states. The simulation mechanism includes a suction pipe and a discharge pipe. The suction pipe is fixedly connected to the lower right side of the outer casing, and the discharge pipe is fixedly connected to the upper left side of the outer casing. The bottom of the test mechanism is fixedly connected to the upper left side of the outer casing, and the fixing mechanism is located below the inner wall of the outer casing.

[0008] By adopting the above technical solution, water can be extracted from the outer box using a suction pipe and then transported back into the outer box using a discharge pipe, thereby achieving the purpose of recycling the water inside the outer box and creating a countercurrent situation, thus expanding the simulable scenarios.

[0009] Preferably, the simulation mechanism further includes a water injection pipe and a drain pipe, wherein the water injection pipe is fixedly connected to the upper rear side of the outer casing, and the drain pipe is fixedly connected to the lower front side of the outer casing.

[0010] By adopting the above technical solution, water can be injected into the outer box using a water injection pipe, and the water used for the simulation test can be easily discharged using a drain pipe.

[0011] Preferably, the simulation mechanism further includes a water pump, the top of which is fixedly connected to the bottom of the outer casing, the right side of which is fixedly connected to one end of the suction pipe, and the left side of which is fixedly connected to one end of the discharge pipe.

[0012] By adopting the above technical solution, water can be pumped out of the outer box using a water pump and then injected into the outer box through a water discharge pipe under water pressure, thus achieving the purpose of water circulation.

[0013] Preferably, the test mechanism includes a fixed frame and a motor. The bottom of the fixed frame is fixedly connected to the top left side of the outer casing, the motor is fixedly connected to the top of the fixed frame, the output shaft of the motor is fixedly connected to a screw, and a movable plate is threadedly connected to the side of the screw. The front and rear sides of the movable plate are slidably connected to the front and rear sides of the inner wall of the fixed frame.

[0014] By adopting the above technical solution, the output shaft of the motor at the top of the fixed frame can be used to drive the screw to rotate. The rotation of the screw drives the moving plate, which is slidably connected to the inner wall of the fixed frame, to move up and down, providing power support for the operation of the test.

[0015] Preferably, the testing mechanism further includes a data transmitter and a tension sensor. The bottom of the data transmitter is fixedly connected to the top right side of the moving plate, the top of the tension sensor is fixedly connected to the bottom right side of the moving plate, a pull rope is fixedly connected to the bottom of the tension sensor, and a hook is fixedly connected to one end of the pull rope.

[0016] By adopting the above technical solution, the upward movement of the movable plate can drive the pull rope at the bottom of the tension sensor to move upward. The upward movement of the pull rope causes the ship model hooked by the hook to move to the left. The data transmitter sends the data sensed by the tension sensor to the data receiver, thereby achieving the purpose of collecting simulation data in real time.

[0017] Preferably, the testing mechanism further includes a fixing rod and a limiting plate. The two ends of the fixing rod are fixedly connected to the front and rear sides of the left side of the inner wall of the outer box, and the limiting plate is fixedly connected to the surface of the fixing rod.

[0018] By adopting the above technical solution, the surface of the fixed rod can be attached to the surface of the pull rope to provide a support point for the movement of the pull rope, and the range of movement of the pull rope can be limited by the limiting plate.

[0019] Preferably, the fixing mechanism includes a movable groove and a retaining plate. The movable groove is located on the lower right side of the inner wall of the outer casing. A telescopic tube is fixedly connected to the right side of the inner wall of the movable groove. The surface of the retaining plate is slidably connected to the inner wall of the movable groove. The right side of the retaining plate is fixedly connected to one end of the telescopic tube.

[0020] By adopting the above technical solution, the telescopic tube in the movable groove can be used to provide directional guidance for the movement of the stationary plate and to provide support for the stationary plate.

[0021] Preferably, the fixing mechanism further includes a slot and a spring. The slot is located on the lower left side of the inner wall of the outer casing. One end of the spring is fixedly connected to the right side of the inner wall of the movable slot, and the other end of the spring is fixedly connected to the right side of the retaining plate. The spring is located on the outside of the telescopic tube.

[0022] By adopting the above technical solution, the left side of the underwater terrain model can be fixed by the slot, and the position of the fixing plate can be restricted to the upper right side of the underwater terrain model by the spring, so as to achieve the purpose of fixing the underwater terrain model.

[0023] Beneficial effects

[0024] This application provides a device for simulating ship navigation resistance. It has the following beneficial effects:

[0025] This ship navigation resistance simulation test device, through the setting of a simulation mechanism, injects water into the outer tank through the water injection pipe, and then the water pump drives the water suction pipe to inject the water in the outer tank into the outer tank through the water discharge pipe. After the test is completed, the water is discharged through the drain pipe, thereby achieving the purpose of simulating ship navigation against the current, expanding the resistance simulation test scenario, improving the cost-effectiveness of the test device, and reducing the cost of ship navigation resistance simulation experiments.

[0026] This ship navigation resistance simulation test device, through the setting of a fixed mechanism, moves the right-side fixed plate, causing the telescopic tube and spring in the movable slot to shorten, locking the left side of the underwater terrain model into the slot and the bottom of the model to fit against the bottom of the inner wall of the outer box. Releasing the control of the fixed plate causes the spring to extend under its own elastic force, which in turn causes the telescopic tube to extend, which in turn causes the left side of the fixed plate to fix the underwater terrain model in place, facilitating the testing of the ship's navigation resistance in different water depth scenarios. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 is a schematic diagram of the external structure of this application from a top right view;

[0029] Figure 2 is an enlarged schematic diagram of Part A of this application;

[0030] Figure 3 is an enlarged schematic diagram of Part B of this application;

[0031] Figure 4 is an enlarged schematic diagram of the structure of part C of this application;

[0032] Figure 5 is a schematic diagram of the external structure of this application from a left-side, upward-looking perspective;

[0033] Figure 6 is an enlarged schematic diagram of part D of this application;

[0034] Figure 7 is a schematic diagram of the left-side top view cross-sectional structure of this application;

[0035] Figure 8 is an enlarged schematic diagram of part E of this application.

[0036] In the diagram: 1. Outer casing; 2. Simulation mechanism; 201. Water injection pipe; 202. Drainage pipe; 203. Water suction pipe; 204. Water pump; 205. Water discharge pipe; 3. Test mechanism; 301. Fixing frame; 302. Motor; 303. Screw; 304. Moving plate; 305. Data transmitter; 306. Tension sensor; 307. Pull rope; 308. Hook; 309. Fixing rod; 310. Limiting plate; 4. Fixing mechanism; 401. Slot; 402. Movable slot; 403. Telescopic tube; 404. Fixing plate; 405. Spring. Detailed Implementation

[0037] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

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

[0039] Referring to Figures 1 and 5, this application provides a ship navigation resistance simulation test device, including an outer casing 1, a test mechanism 3 for testing ship navigation resistance, and a fixing mechanism 4 for fixing underwater terrain models at different water depths during a single voyage. A simulation mechanism 2 for simulating different water flow states is provided on the outside of the outer casing 1. The simulation mechanism 2 includes a suction pipe 203 and a discharge pipe 205. The suction pipe 203 is fixedly connected to the lower right side of the outer casing 1, and the discharge pipe 205 is fixedly connected to the upper left side of the outer casing 1. A water injection pipe 201 is fixedly connected to the upper rear side of the outer casing 1, and a drain pipe 202 is fixedly connected to the lower front side of the outer casing 1. The bottom of the test mechanism 3 is fixedly connected to the upper left side of the outer casing 1. The fixing mechanism 4 is located below the inner wall of the outer casing 1. A water pump 204 is fixedly connected to the bottom of the outer casing 1. The right side of the water pump 204 is fixedly connected to one end of the suction pipe 203, and the left side of the water pump 204 is fixedly connected to one end of the discharge pipe 205. After water is injected into the outer casing 1, the water pump 204 drives the suction pipe 203 to inject the water in the outer casing 1 into the outer casing 1 through the drain pipe 205. After the test is completed, the water is discharged through the drain pipe 202.

[0040] Referring to Figures 1, 2, 3, 4, 5, and 6, in one aspect of this embodiment, the test mechanism 3 includes a fixed frame 301 and a motor 302. The bottom of the fixed frame 301 is fixedly connected to the top left side of the outer casing 1. The motor 302 is fixedly connected to the top of the fixed frame 301. A screw 303 is fixedly connected to the output shaft of the motor 302. A movable plate 304 is threadedly connected to the side of the screw 303. The front and rear sides of the movable plate 304 are slidably connected to the front and rear sides of the inner wall of the fixed frame 301. A data transmitter 305 is fixedly connected to the top right side of the movable plate 304. A tension sensor 306 is fixedly connected to the bottom right side of the movable plate 304. A pull rope 307 is fixedly connected to the bottom of the tension sensor 306. A hook 308 is fixedly connected to one end of the pull rope 307. A fixed rod 309 is fixedly connected to the front and rear sides of the left side of the inner wall of the outer casing 1. A limit plate 310 is fixedly connected to the surface of the fixed rod 309. The hook 308 is... Hanging at the front of the ship model, the output shaft of the motor 302 on the top of the fixing frame 301 rotates, driving the screw 303 to rotate. The rotation of the screw 303 causes the moving plate 304 to move upward. The upward movement of the moving plate 304 causes the tension sensor 306 to move upward. The upward movement of the tension sensor 306 causes the pull rope 307, which is attached to the surface of the fixing rod 309 between the surface and the limiting plate 310, to move upward. The upward movement of the pull rope 307 causes the left side of the ship model to move upward. The data transmitter 305 sends the data sensed by the tension sensor 306 to the data receiver.

[0041] Referring to Figures 7 and 8, in one aspect of this embodiment, the fixing mechanism 4 includes a movable groove 402 and a retaining plate 404. The movable groove 402 is located on the lower right side of the inner wall of the outer casing 1. A telescopic tube 403 is fixedly connected to the right side of the inner wall of the movable groove 402. The surface of the retaining plate 404 is slidably connected to the inner wall of the movable groove 402. The right side of the retaining plate 404 is fixedly connected to one end of the telescopic tube 403. A slot 401 is located on the lower left side of the inner wall of the outer casing 1. A spring 405 is fixedly connected to the right side of the inner wall of the movable groove 402. The other end of the spring 405 is fixedly connected to the right side of the retaining plate 404. The spring 405 is located outside the telescopic tube 403. Moving the retaining plate 404 to the right causes the telescopic tube 403 and the spring 405 in the movable groove 402 to shorten, locking the left side of the underwater terrain model into the slot 401 and fitting the bottom of the model against the bottom of the inner wall of the outer casing 1. Releasing the retaining plate 404... Under the control of the spring 405, the spring 405 extends, causing the telescopic tube 403 to extend. The extension of the telescopic tube 403 causes the fixing plate 404 to move to the left, thus fixing the underwater terrain model.

[0042] All electrical devices in this plan are powered by an external power source.

[0043] Working principle:

[0044] In use, moving the right-side fixing plate 404 causes the telescopic tube 403 and spring 405 in the movable slot 402 to shorten, locking the left side of the underwater terrain model into the slot 401 and the bottom of the model against the bottom of the inner wall of the outer box 1. Releasing the control of the fixing plate 404 causes the spring 405 to extend, which in turn extends the telescopic tube 403. The extension of the telescopic tube 403 then moves the left side of the fixing plate 404, fixing the underwater terrain model in place. Water is then injected into the outer box 1 through the water injection pipe 201. The water pump 204 then drives the suction pipe 203 to inject water from the outer box 1 into the outer box 1 through the discharge pipe 205, simulating a ship traveling in reverse. The output shaft of the motor 302 at the top of the fixing frame 301 rotates, causing the screw 303 to rotate. The rotation of the screw 303 causes the moving plate 304 to move upwards, which in turn moves the tension sensor 306. The upward movement of the tension sensor 306 causes the tension rope 307, which is attached to the surface of the fixing rod 309 between the surface and the limiting plate 310, to move upward. The upward movement of the tension rope 307 causes the left side of the ship model to move upward. The data transmitter 305 sends the data sensed by the tension sensor 306 to the data receiver. After the test is completed, the water is drained by the drain pipe 202.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A ship navigation resistance simulation test device, comprising an outer box (1), a test mechanism (3) for testing ship navigation resistance, and a fixing mechanism (4) for fixing a water bottom terrain model of different water depths in a simulated single navigation, characterized in that: The outer box (1) is provided with a simulation mechanism (2) outside for simulating different water flow states, the simulation mechanism (2) comprises a water suction pipe (203) and a water discharge pipe (205), the water suction pipe (203) is fixedly connected with the lower right side of the outer box (1), the water discharge pipe (205) is fixedly connected with the upper left side of the outer box (1), the test mechanism (3) is fixedly connected with the left top of the outer box (1), and the fixing mechanism (4) is arranged below the inner wall of the outer box (1).

2. The ship navigation resistance simulation test device according to claim 1, characterized in that: The simulation mechanism (2) further comprises a water injection pipe (201) and a drain pipe (202), the water injection pipe (201) is fixedly connected with the upper rear side of the outer box (1), and the drain pipe (202) is fixedly connected with the lower front side of the outer box (1).

3. The ship resistance simulation test device according to claim 2, characterized in that: The simulation mechanism (2) further comprises a water pump (204), the water pump (204) is fixedly connected with the bottom of the outer box (1), one end of the water pump (204) is fixedly connected with the water suction pipe (203) on the right side, and the other end of the water pump (204) is fixedly connected with the water discharge pipe (205) on the left side.

4. The ship navigation resistance simulation test device according to claim 3, characterized in that: The test mechanism (3) comprises a fixing frame (301) and a motor (302), the fixing frame (301) is fixedly connected with the left top of the outer box (1), the motor (302) is fixedly connected with the top of the fixing frame (301), a screw rod (303) is fixedly connected with the output shaft of the motor (302), a moving plate (304) is threadedly connected with the side surface of the screw rod (303), and the moving plate (304) is slidably connected with the inner wall of the fixing frame (301) on the front and rear sides.

5. The ship resistance simulation test device according to claim 4, characterized in that: The test mechanism (3) further comprises a data transmitter (305) and a tension sensor (306), the data transmitter (305) is fixedly connected with the top right side of the moving plate (304), the tension sensor (306) is fixedly connected with the bottom right side of the moving plate (304), a pull rope (307) is fixedly connected with the bottom of the tension sensor (306), and a hook (308) is fixedly connected with one end of the pull rope (307).

6. The ship resistance simulation test device according to claim 5, characterized in that: The test mechanism (3) further comprises a fixing rod (309) and a limiting plate (310), the fixing rod (309) is fixedly connected with the left side of the inner wall of the outer box (1) on the front and rear sides, and the limiting plate (310) is fixedly connected with the surface of the fixing rod (309).

7. The ship navigation resistance simulation test device according to claim 1, characterized in that: The fixing mechanism (4) comprises a movable groove (402) and a retaining plate (404), the movable groove (402) is arranged in the lower right side of the inner wall of the outer box (1), a telescopic pipe (403) is fixedly connected with the right inner wall of the movable groove (402), and the surface of the retaining plate (404) is slidably connected with the inner wall of the movable groove (402).

8. The ship navigation resistance simulation test device according to claim 7, characterized in that: The fixing mechanism (4) further comprises a clamping groove (401) and a spring (405), the clamping groove (401) is arranged on the left lower inner wall of the outer box (1), one end of the spring (405) is fixedly connected with the right inner wall of the movable groove (402), the other end of the spring (405) is fixedly connected with the right side of the retaining plate (404), and the spring (405) is arranged on the outer side of the telescopic pipe (403).

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