Ship towing and measurement system suitable for curved navigable tunnel test

Abstract

The present invention relates to the technical field of ship test devices. Specifically disclosed is a ship towing and measurement system suitable for a curved navigable tunnel test. In the present invention, by controlling forward speeds of fore and aft towing carriages, a ship model can travel at a constant speed along a central line of a channel in a curved test flume. The ship model has no constraint in a vertical direction and can freely heave, and the heave of the ship model can be measured in real time during a test; the direction of travel of the towing carriages can be reversed, such that the ship model can run in two directions; the towing carriages are connected to the ship model by means of traction ropes, and the navigational resistance of the ship model is measured by means of the tension of the traction ropes during the test; and by means of the arrangement of a laser range finder and independent control of timing pulleys, accurate positioning of the ship model is realized, and it is convenient to control the displacement and the speed of the ship model. The present invention overcomes the shortcomings of the prior art in the measurement and control of a curved channel by means of the innovative design of fore and aft towing carriages running on rails, and realizes intelligent simulation of the towing of a ship in a curved channel and synchronous measurement of navigation elements.

Description

A ship towing and measurement system suitable for testing curved navigation tunnels Technical Field

[0001] This invention relates to the field of ship testing equipment technology, and in particular to a ship towing and measurement system suitable for testing curved navigation tunnels. Background Technology

[0002] Ship towing tests are an important method for analyzing the ship's resistance variations under different motion states, understanding the ship's interaction with water flow characteristics, and exploring ways to optimize ship performance. Ship towing tests have significant applications in ship design and performance optimization. Through these tests, the patterns of resistance variation under different motion states can be investigated, and the ship's interaction with water flow characteristics can be analyzed, providing crucial information for ship design and performance optimization.

[0003] Currently, there are many ship towing pools, but they are all for towing devices designed for straight waterways. There is no ship towing test device suitable for curved waterways.

[0004] Therefore, there is an urgent need to provide a ship towing and measurement system suitable for testing curved navigation tunnels, in order to address the shortcomings of existing technologies in the measurement and control of curved waterways. Summary of the Invention

[0005] The purpose of this invention is to provide a ship towing and measurement system suitable for testing curved navigation tunnels, in order to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides a ship towing and measurement system suitable for testing curved navigation tunnels, comprising:

[0007] Arc-shaped test water tank;

[0008] The track is installed on the top of the sidewalls on both sides of the arc-shaped test water tank;

[0009] A model ship, with radar rangefinders installed at both ends of its bottom, the radar rangefinders being used to measure the heave of the model ship.

[0010] Two tractor units are respectively located at the front and rear ends of the ship model. The tractor units travel along the track. Two laser rangefinders are installed on the side of the tractor units away from the ship model. The laser rangefinders are used to detect the distance from the tractor units to the inner wall of the side wall in real time.

[0011] A traction assembly is installed on the side of the tractor vehicle near the model boat, and the tractor vehicle tows the model boat through the traction assembly.

[0012] Preferably, the track has an arc-shaped structure and is concentrically arranged with the arc-shaped test water tank.

[0013] Preferably, the track is assembled from several track segments, the track segments comprising:

[0014] A track base plate, which is installed on the top of the side wall;

[0015] A track support plate, which is fixedly installed on the top of the track base plate;

[0016] A track panel is disposed between two track uprights and is fixedly connected to the top of the track uprights, with a groove formed between the track panel and the track uprights.

[0017] Preferably, the tractor unit includes:

[0018] The vehicle frame has the laser rangefinder and the traction assembly mounted on its two sides respectively. Four wheels are mounted on the vehicle frame, which is supported by the wheels in grooves on the track and travels along the track.

[0019] Two sets of drive units are respectively installed on both sides of the frame. The drive units are connected to synchronous pulleys, which are located at the bottom of the frame. A synchronous belt is fixedly connected to the side of the track near the boat model, and the synchronous pulley meshes with the synchronous belt.

[0020] A controller is mounted at the top center of the vehicle frame, and the drive unit is electrically connected to the controller.

[0021] Preferably, the driving device includes:

[0022] An electric motor is connected to the synchronous pulley via a drive shaft, and the electric motor is electrically connected to the controller;

[0023] A linear module, which is fixedly mounted on the vehicle frame, is used to adjust the position of the electric motor;

[0024] A battery for powering the electric motor and the controller.

[0025] Preferably, the linear module includes a pressure regulating plate, which is fixedly mounted on the vehicle frame; a baffle is fixedly connected to the top of the pressure regulating plate, a guide rod is slidably connected to the baffle, a slider is fixedly connected to one end of the guide rod near the electric motor, a bracket plate is fixedly connected to the slider, and the electric motor is mounted on the bracket plate; a compression spring is sleeved on the guide rod, and the two ends of the compression spring abut against the baffle and the slider, respectively.

[0026] Preferably, the traction assembly includes:

[0027] Two uprights are fixedly connected to both ends of the vehicle frame, and ball joints are installed at the bottom ends of the uprights.

[0028] A traction ring is mounted on the ball joint and is connected to the model boat via a traction rope.

[0029] Preferably, a tension sensor is provided between the traction ring and the ball joint, the tension sensor is electrically connected to the controller, and the tension sensor is used to monitor the tension of the traction rope in real time.

[0030] Preferably, the traction lifting ring is fixedly connected to the ship model.

[0031] Preferably, the synchronous belt is a T-tooth synchronous belt.

[0032] Compared with the prior art, the present invention has the following advantages and technical effects:

[0033] The present invention provides a ship towing and measurement system suitable for testing in curved navigation tunnels. By controlling the forward speed of the two tractors, the system enables the ship model to travel at a constant speed along the center line of the channel in the curved test water tank. The ship model is unrestrained in the vertical direction and can rise and fall freely, and the amount of rise and fall of the ship model can be measured in real time during the test. The direction of travel of the tractors can be changed, allowing the ship model to move in both directions. By setting up a laser rangefinder, the system can accurately position the ship model, facilitating the control of the ship model's displacement and speed.

[0034] This invention, through the innovative design of two on-orbit tractors, solves the shortcomings of existing technologies in the measurement and control of curved waterways, and realizes intelligent simulation of ship towing and synchronous measurement of navigation elements in curved waterways. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 is a schematic diagram of the ship towing and measurement system of the present invention applicable to the test of an arc-shaped navigation tunnel;

[0037] Figure 2 is a schematic diagram of the track structure of the present invention;

[0038] Figure 3 is a schematic diagram of the heave detection of the ship model according to the present invention;

[0039] Figure 4 is a schematic diagram of the structure of the tractor vehicle of the present invention;

[0040] Figure 5 is a schematic diagram of the traction component of the present invention;

[0041] In the diagram: 1. Arc-shaped test water tank; 2. Track; 3. Traction vehicle; 4. Boat model; 11. Side wall; 12. Track base plate; 13. Track upright plate; 14. Track panel; 15. Synchronous belt; 21. Traction rope; 22. Radar rangefinder; 31. Laser rangefinder; 32. Frame; 33. Support plate; 34. Compression spring; 35. Linear module; 36. Electric motor; 37. Pressure regulating plate; 38. Battery; 39. Controller; 41. Traction ring; 42. Tension sensor; 43. Ball joint; 44. Upright pole; 45. Wheel; 46. Synchronous pulley. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other. The described embodiments are merely some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention. The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] As shown in Figures 1 to 5, the present invention provides a ship towing and measurement system suitable for testing curved navigation tunnels, comprising:

[0044] Arc-shaped test water tank 1;

[0045] Track 2 is installed at the top of the sidewalls 11 on both sides of the arc-shaped test water tank 1;

[0046] The ship model 4 has radar rangefinders 22 installed at both ends of its bottom. The radar rangefinders 22 are used to measure the heave of the ship model 4.

[0047] Two tractor vehicles 3 are respectively set at the front and rear ends of the ship model 4. The tractor vehicles 3 travel along the track 2. Two laser rangefinders 31 are set on the side of the tractor vehicle 3 away from the ship model 4. The laser rangefinders 31 are used to detect the distance from the tractor vehicle 3 to the inner wall of the side wall 11 in real time.

[0048] The towing assembly is installed on the side of the towing vehicle 3 near the model boat 4. The towing vehicle 3 tows the model boat 4 through the towing assembly.

[0049] This invention enables the ship model 4 to travel at a constant speed along the center line of the channel in the arc-shaped test water tank 1 by controlling the forward speed of the two tractor vehicles 3. The ship model 4 is unrestrained in the vertical direction and can rise and fall freely. The rise and fall of the ship model 4 can be measured in real time during the test. The direction of travel of the tractor vehicles 3 can be changed, allowing the ship model 4 to run in both directions. The laser rangefinder 31 enables precise positioning of the ship model 4, facilitating the control of the displacement and speed of the ship model 4.

[0050] This invention, through the innovative design of two on-orbit tractors 3, solves the shortcomings of existing technologies in the measurement and control of curved waterways, and realizes intelligent simulation of ship towing and synchronous measurement of navigation elements in curved waterways.

[0051] Further optimization of the design: Track 2 is an arc-shaped structure, and Track 2 is concentrically set with the arc-shaped test water tank 1.

[0052] Further optimization of the design: Track 2 is assembled from several track segments, including:

[0053] Track base plate 12, which is installed on the top of side wall 11;

[0054] Track support plate 13 is fixedly installed on the top of track base plate 12;

[0055] The track panel 14 is disposed between the two track uprights 13 and is fixedly connected to the top of the track uprights 13, and a groove is formed between the track panel 14 and the track uprights 13.

[0056] The design has been further optimized, and tractor 3 includes:

[0057] The frame 32, the laser rangefinder 31, and the traction assembly are respectively installed on both sides of the frame 32; four wheels 45 are installed on the frame 32, and the frame 32 is supported in the grooves on the track 2 by the wheels 45 and travels along the track 2.

[0058] Two sets of drive units are installed on both sides of the frame 32. The drive units are connected to synchronous pulleys 46, which are located at the bottom of the frame 32. A synchronous belt 15 is fixedly connected to the side of the track plate 13 near the boat model 4. The synchronous pulley 46 meshes with the synchronous belt 15.

[0059] The controller 39 is mounted at the top center of the frame 32, and the drive unit is electrically connected to the controller 39.

[0060] Further optimization of the scheme, the drive device includes:

[0061] Electric motor 36 is connected to synchronous pulley 46 via a drive shaft, and is electrically connected to controller 39.

[0062] Linear module 35 is fixedly mounted on the frame 32 and is used to adjust the position of electric motor 36;

[0063] Battery 38 is used to power electric motor 36 and controller 39.

[0064] Further optimizing the design, the linear module 35 includes a pressure regulating plate 37, which is fixedly mounted on the frame 32. A baffle is fixedly connected to the top of the pressure regulating plate 37, and a guide rod is slidably connected to the baffle. A slider is fixedly connected to one end of the guide rod near the electric motor 36, and a bracket plate 33 is fixedly connected to the slider. The electric motor 36 is mounted on the bracket plate 33. A compression spring 34 is sleeved on the guide rod, and the two ends of the compression spring 34 abut against the baffle and the slider, respectively.

[0065] By using the compression spring 34, the synchronous pulley 46 can be pushed to engage with the synchronous belt 15 inside the track 2, ensuring the effectiveness of the transmission.

[0066] Further optimization of the scheme includes the following traction components:

[0067] Two uprights 44 are fixedly connected to both ends of the frame 32, and ball joints 43 are installed at the bottom of the uprights 44.

[0068] The towing ring 41 is mounted on the ball joint 43 and is connected to the model boat 4 via the towing rope 21.

[0069] To further optimize the design, a tension sensor 42 is installed between the traction ring 41 and the ball joint 43. The tension sensor 42 is electrically connected to the controller 39 and is used to monitor the tension of the traction rope 21 in real time.

[0070] The design has been further optimized, with a traction lifting ring 41 fixedly connected to the ship model 4.

[0071] The design was further optimized, and the timing belt 15 was changed to a T-tooth timing belt.

[0072] The ship towing and measurement system for testing curved navigation tunnels provided by this invention has the following working principle:

[0073] The boat model 4 is towed and navigated in the arc-shaped test tank 1 by two tractor units 3. A radar rangefinder 22 is installed at the front and rear of the bottom of the boat model 4 to measure the heave and sag of the boat model 4. A laser rangefinder 31 is installed on each side of the front end of the frame 32 of the tractor unit 3. During the test, the distance between the tractor unit 3 and the inner wall of the side wall 11 is detected in real time. When the distance exceeds the set range, it is determined that the tractor unit 3 has deviated from the predetermined route, and the motor speed is adjusted in time to correct the course. The frame 32 of the tractor unit 3 is equipped with four wheels 45, which are supported on the two side rails 2. The wheel rims are inserted into the grooves of the rails 2 and roll in the grooves, so that the tractor unit 3 can navigate along the rails 2. A drive unit is installed on each side of the frame 32, each drive unit having an electric motor 36. The electric motor 36 drives the synchronous wheel 46 at the bottom of the vehicle body to rotate via a transmission shaft. The electric motor 36 is fixed to the slider of the linear module 35 via a bracket plate 33, allowing it to slide laterally. There are two compression springs 34 on the rear side of the bracket plate 33, which are used to push the synchronous wheel 46 to engage with the synchronous belt 15 on the inner side of the track 2, thereby controlling the forward movement of the vehicle body. Each electric motor 36 has an independent power supply and drive module, and its speed can be controlled individually by a computer program. Two uprights 44 are fixed on the frame 32 of the tractor 3. A set of ball joints 43 is installed at the bottom of the uprights 44. A tension sensor 42 is installed at the end of the ball joint 43 and connected in series with the traction rope 21 to monitor the tension of the two traction ropes 21 in real time. The operation control of the two tractor 3s is implemented through a computer program to simulate the navigation of a ship in an arc-shaped channel and to measure navigation elements such as heave, resistance, and ship positioning.

[0074] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A ship towing and measurement system suitable for testing in curved navigation tunnels, characterized in that, include: Arc-shaped test water tank (1); Track (2), which is installed on the top of the sidewalls (11) on both sides of the arc-shaped test water tank (1); The ship model (4) is equipped with radar rangefinders (22) at both ends of its bottom. The radar rangefinders (22) are used to measure the heave of the ship model (4). Two tractor vehicles (3) are respectively set at the front and rear ends of the ship model (4). The tractor vehicles (3) travel along the track (2). Two laser rangefinders (31) are set on the side of the tractor vehicle (3) away from the ship model (4). The laser rangefinders (31) are used to detect the distance from the tractor vehicle (3) to the inner wall of the side wall (11) in real time. A traction assembly is installed on the side of the tractor (3) near the model boat (4), and the tractor (3) tows the model boat (4) through the traction assembly. The tractor (3) includes: The frame (32) is equipped with the laser rangefinder (31) and the traction assembly on both sides of the frame (32); four wheels (45) are mounted on the frame (32), and the frame (32) is supported by the wheels (45) in the grooves on the track (2) and travels along the track (2); Two sets of drive devices are installed on both sides of the frame (32). The drive devices are connected to synchronous pulleys (46), which are located at the bottom of the frame (32). A synchronous belt (15) is fixedly connected to the side of the track (2) near the boat model (4). The synchronous pulley (46) meshes with the synchronous belt (15). A controller (39) is mounted at the top center of the frame (32), and the drive unit is electrically connected to the controller (39); The driving device includes: An electric motor (36) is connected to the synchronous pulley (46) via a transmission shaft, and the electric motor (36) is electrically connected to the controller (39). A linear module (35) is fixedly mounted on the frame (32) and is used to adjust the position of the electric motor (36). A battery (38) is provided for powering the electric motor (36) and the controller (39); The linear module (35) includes a pressure regulating plate (37), which is fixedly installed on the frame (32). A baffle is fixedly connected to the top of the pressure regulating plate (37), and a guide rod is slidably connected to the baffle. A slider is fixedly connected to one end of the guide rod near the electric motor (36), and a bracket plate (33) is fixedly connected to the slider. The electric motor (36) is installed on the bracket plate (33). A compression spring (34) is sleeved on the guide rod, and the two ends of the compression spring (34) abut against the baffle and the slider, respectively.

2. The ship towing and measurement system for testing curved navigation tunnels according to claim 1, characterized in that, The track (2) is an arc-shaped structure and is concentrically set with the arc-shaped test water tank (1).

3. The ship towing and measurement system for testing curved navigation tunnels according to claim 2, characterized in that, The track (2) is assembled from several track segments, the track segments including: Track base plate (12), said track base plate (12) is installed on the top of said side wall (11); Track support plate (13), which is fixedly installed on the top of the track base plate (12); The track panel (14) is disposed between the two track uprights (13) and is fixedly connected to the top of the track uprights (13), and a groove is formed between the track panel (14) and the track uprights (13).

4. The ship towing and measurement system for testing curved navigation tunnels according to claim 1, characterized in that, The traction assembly includes: Two uprights (44) are fixedly connected to both ends of the frame (32), and ball joints (43) are installed at the bottom of the uprights (44). The traction ring (41) is installed on the ball joint (43) and is connected to the boat model (4) by the traction rope (21).

5. The ship towing and measurement system for testing curved navigation tunnels according to claim 4, characterized in that, A tension sensor (42) is provided between the traction ring (41) and the ball joint (43). The tension sensor (42) is electrically connected to the controller (39). The tension sensor (42) is used to monitor the tension of the traction rope (21) in real time.

6. The ship towing and measurement system for testing curved navigation tunnels according to claim 4, characterized in that, The traction ring (41) is fixedly connected to the ship model (4).

7. The ship towing and measurement system for testing curved navigation tunnels according to claim 1, characterized in that, The synchronous belt (15) is a T-tooth synchronous belt.

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