A physical device for simulating the effects of wind field in model tests of marine engineering

Abstract

The application provides a physical device for simulating the influence of a wind field in a model test of ocean engineering, and relates to the technical field of ocean engineering. The physical device comprises two first electric sliding rails and a central processing center. The action point of the wind force is adjusted through the central processing center, so that the known wind field action can be simulated very accurately, the wind field action is combined with the ocean environment condition more easily, the action wind in the simulated wind field mechanism is simulated and tracked separately, the additional mass of the floating body model is removed, the action of the wind with a changing direction on the floating body model is simulated by a regulation module, the ocean simulated floating body model can perform random drift movement in a large range and is tracked in real time, the error of the additional mass of the simulated floating body model in subsequent calculation is effectively reduced, the wind and the wave in the ocean environment are simulated, the simulation simulation of the ocean environment is improved, the result reliability of the model test is improved, and the operation complexity and the huge energy consumption of the traditional fan array mode for simulating the wind field are solved.

Description

Technical Field

[0001] This invention relates to the field of marine engineering technology, specifically to a physical device for simulating the influence of wind fields in marine engineering model tests. Background Technology

[0002] Marine engineering is a crucial discipline in the development, utilization, protection, and restoration of marine resources. A key aspect of marine engineering is the study of the effects of ocean surface wind fields on floating bodies such as ships and offshore platforms. Current physical simulation devices are not only difficult to implement but also prohibitively expensive. To overcome the challenges of high costs and uncontrolled environmental loads in field testing, model tests in experimental water tanks can be used to study the effects of ocean surface wind fields on floating bodies—a frequently employed research method in the field of marine engineering.

[0003] The existing patent (publication number: CN105300652A) discloses a physical device for simulating the influence of wind field in marine engineering model tests. It simulates the effect of sea surface wind field on the floating body by utilizing the reaction force of wind generated by the operation of a fan. Pressure sensors are connected to the fan and the data processing unit respectively to collect the wind force data of the fan and send it to the data processing unit for processing and display.

[0004] However, this patent fixes the fan to the simulated floating body model via a base and slide rail. Although it achieves the simulation of the effect of changing wind direction on the floating body at sea, and the floating body and wind direction are in a large range of random drifting motion, the added base, slide rail and fan change the mass of the original floating body. Although it completes the simulation of the effect of ocean wind direction, it leads to the calculation error caused by the change in mass. Moreover, it only simulates the changing wind direction and lacks the simulation of wave fluctuation in the ocean wind field, resulting in low simulation accuracy and low reliability of the model experiment results. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a physical device for simulating the influence of wind fields in marine engineering model tests. This solves the problems of calculation errors caused by changes in the mass of physical devices in traditional simulations, and the lack of simulation of wave fluctuations in the ocean wind field, which leads to low simulation accuracy and low reliability of model test results.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solution: a physical device for simulating the influence of wind field in a marine engineering model test, comprising two No. 1 electric slide rails and a central processing center, each of the two No. 1 electric slide rails having an electric slide groove on its upper end face, each of the two electric slide grooves having a No. 1 electric slider slidably disposed within its electric slide groove, each of the two No. 1 electric sliders having a support rod fixedly disposed on its upper end face, each of the two support rods having a No. 2 electric slide rail fixedly disposed on its upper end face, and a No. 2 electric slider slidably disposed on its No. 2 electric slide rail;

[0009] A mounting block is fixedly installed on the lower end face of the second electric slider. A tracking camera is embedded at the midpoint of the lower side of the front end face of the mounting block. A servo motor is embedded inside the mounting block. A rotating seat is fixedly installed at the output end of the servo motor. An electric telescopic rod is fixedly installed on the lower end face of the rotating seat. A connecting block is fixedly installed at the output end of the electric telescopic rod. A fan is fixedly installed on the lower end face of the connecting block through two connecting rods.

[0010] Preferably, the central processing center is electrically connected to a simulated wind field mechanism, which includes simulated wind action and simulated wave action.

[0011] Preferably, the wave simulation is performed by a wave-generating and wave-dissipating system to simulate ocean environmental waves. The wave-generating system includes a hydraulic wave generator, and the wave-dissipating system includes a wave-dissipating device installed on the opposite bank of the wave generator.

[0012] Preferably, the central processing center includes a control module and a tracking module.

[0013] Preferably, the control module includes steering control, wind speed control, altitude control, position control, and wave control, and the tracking module includes real-time tracking and fixed-point tracking.

[0014] Preferably, the two electric slide rails, the tracking camera, the fan, and the servo motor are all electrically connected to the central processing center. The two electric slide rails are located on both sides of the simulated water tank, and a simulated floating body model is set inside the simulated water tank.

[0015] A specific operating method for a physical device simulating the influence of wind fields in a marine engineering model experiment, characterized by comprising the following steps:

[0016] S1. Wind Farm Construction

[0017] A water tank simulating a marine environment was selected, and a simulated wind field mechanism was built inside the water tank to simulate a marine wind field. The constructed simulated wind field mechanism was then electrically connected to the central processing center.

[0018] S2. Floating Body Simulation

[0019] The simulated floating model is placed in the pool, and the simulated wind field mechanism simulates the acting wind and waves, and the tracking module tracks it.

[0020] (III) Beneficial Effects

[0021] This invention provides a physical device for simulating the influence of wind fields in marine engineering model experiments. It has the following beneficial effects:

[0022] 1. This invention provides a physical device for simulating the influence of wind fields in marine engineering model tests. By adjusting the point of action of the wind force through a central processing center, the known wind field effect can be simulated very accurately. It can be easily combined with its marine environmental conditions. At the same time, the wind simulation mechanism tracks and operates the wind field effect separately, removes the added mass of the floating body model, and the control module simulates the effect of changing wind direction on the floating body model. The marine simulated floating body model can perform a large range of random drifting motions and be tracked in real time, effectively reducing the error of the added mass of the simulated floating body model in subsequent calculations.

[0023] 2. This invention provides a physical device for simulating the influence of wind fields in marine engineering model tests. By adding wave simulation, it synchronously simulates the impact force and thrust of waves generated by wind fields in the marine environment on floating bodies at sea, simulates the influence of actual waves on ships or buildings, realizes the simulation of wind and waves in the marine environment, improves the simulation of the marine environment, improves the reliability of model test results, and solves the problems of complex operation and huge energy consumption of traditional wind turbine array methods for simulating wind fields. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a partial orthogonal sectional view of the present invention;

[0026] Figure 3 This is a system framework diagram of the present invention;

[0027] Figure 4 This is a structural framework diagram of the wind field simulation mechanism of the present invention;

[0028] Figure 5 This is a structural framework diagram of the control module of the present invention;

[0029] Figure 6 This is a structural framework diagram of the tracking module of the present invention.

[0030] The components include: 1. Support rod; 2. Electric slider No. 1; 3. Electric slide rail; 4. Electric slide rail No. 1; 5. Electric slide rail No. 2; 6. Electric slider No. 2; 7. Tracking camera; 8. Electric telescopic rod; 9. Connecting block; 10. Fan; 11. Mounting block; 12. Rotating seat; 13. Servo motor; 14. Connecting rod; 15. Simulated wind field mechanism; 1501. Actual wind simulation; 1502. Actual wave simulation; 16. Simulated floating body model; 17. Central processing center; 1701. Control module; 170101. Steering control; 170102. Wind speed control; 170103. Height control; 170104. Position control; 170105. Wave control; 1702. Tracking module; 170201. Real-time tracking; 170202. Fixed-point tracking. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example:

[0033] like Figure 1-6 As shown, this embodiment of the invention provides a physical device for simulating the influence of wind field in a marine engineering model test. It includes two primary electric slide rails 4 and a central processing center 17. Each of the two primary electric slide rails 4 has an electric slide groove 3 on its upper surface. Each of the two electric slide grooves 3 has a primary electric slider 2 slidably mounted inside it. Each of the two primary electric sliders 2 has a support rod 1 fixedly mounted on its upper surface. Each of the two support rods 1 has a secondary electric slide rail 5 fixedly mounted on its upper surface. A secondary electric slider 6 is slidably mounted on the secondary electric slide rail 5. The two primary electric slide rails 4 are located on both sides of a simulated water tank, and a simulated floating body model 16 is set inside the simulated water tank. The two primary electric sliders 2 are located inside the primary electric slide rails 4 for longitudinal displacement adjustment, while the secondary electric slider 6 at the upper end slides laterally on the secondary electric slide rail 5. When the simulated floating body model 16 floats, it is convenient to complete the position following adjustment.

[0034] A mounting block 11 is fixedly installed on the lower end face of the second electric slider 6. A tracking camera 7 is embedded in the lower midpoint of the front end face of the mounting block 11. A servo motor 13 is embedded inside the mounting block 11. A rotating seat 12 is fixedly installed at the output end of the servo motor 13. An electric telescopic rod 8 is fixedly installed on the lower end face of the rotating seat 12. A connecting block 9 is fixedly installed at the output end of the electric telescopic rod 8. A fan 10 is fixedly installed on the lower end face of the connecting block 9 through two connecting rods 14. The two first electric slide rails 4, the second electric slide rail 5, the tracking camera 7, the fan 10, and the servo motor 13 are all electrically connected to the central processing center 17. The central processing center 17 changes the wind force generated by the fan 10 by changing the speed of the fan 10 to simulate the wind force in the actual environment. The point of application of the wind force of the fan 10 is driven by the servo motor 13 to rotate the rotating seat 12. At this time, the fan 10 connected at the lower end rotates accordingly, thereby changing the point of application of the wind force of the fan 10. The height of the electric telescopic rod 8 can be adjusted in the vertical direction to adjust the vertical point of application of the wind force.

[0035] The central processing center 17 is electrically connected to a simulated wind field mechanism 15, which includes an action wind simulation 1501 and an action wave simulation 1502. The wave simulation 1502 simulates ocean waves through a wave-generating and wave-dissipating system. The wave-generating system includes a hydraulic wave generator, and the wave-dissipating system includes wave-dissipating devices installed on the opposite bank of the wave generator. The central processing center 17 schedules and adjusts the simulated wind field mechanism 15. According to the internal control module 1701 and tracking module 1702, the control module 1701 includes steering control 170101, wind speed control 170102, height control 170103, position control 170104, and wave control 170105, which adjust the waves in the simulated pool and the wind force at the upper end. The tracking module 1702 includes real-time tracking 170201 and fixed-point tracking 170202. According to the tracking module 1702, the floating model is oriented and tracked by wind. This not only ensures the conditions for following the wind, but also eliminates the need to install the wind power device on the floating body, avoiding the problem of increasing the mass of the floating body and adding subsequent simulation calculation steps.

[0036] A specific operating method for a physical device for simulating the influence of wind fields in a marine engineering model experiment includes the following steps:

[0037] S1. Wind Farm Construction

[0038] Select a water tank simulating a marine environment, lay two No. 1 electric slide rails 4 on both sides of the water tank, install support rods 1 on both sides of the lower end of the No. 2 electric slide rail 5, and slide a fan 10 with telescopic and steerable functions on the No. 2 electric slide rail 5 through the mounting block 11 and the No. 2 electric slider 6. At this time, the two support rods 1 are locked in the No. 1 electric slide rail 4 through the No. 1 electric slider 2. At the same time, install the hydraulic wave generator in the simulated wind field mechanism 15 in the water tank, and install the wave damping device on the opposite bank of the wave generator to complete the construction of the marine wind field simulation, and electrically connect the constructed simulated wind field mechanism 15 to the central processing center 17.

[0039] S2. Floating Body Simulation

[0040] The simulated floating body model 16 is placed in the pool. It is controlled by the central processing center 17, and the tracking camera 7 tracks the floating body. The wind field and waves are simulated by the wind simulation 1501 formed by the fan 10 and the wave simulation 1502 formed by the wave generator, thus completing the tracking simulation.

[0041] The central processing center 17 adjusts the point of action of the wind force, which can very accurately simulate the known wind field effect and is easily combined with its marine environmental conditions. At the same time, the wind simulation 1501 in the simulated wind field mechanism 15 is tracked and operated separately, the added mass of the floating body model is removed, and the control module 1701 simulates the effect of changing wind direction on the floating body model. The marine simulated floating body model 16 can perform a large range of random drifting motion and real-time directional tracking, which effectively reduces the error of the added mass of the simulated floating body model 16 in subsequent calculations. At the same time, it realizes the simulation of wind and waves in the marine environment, improves the simulation of the marine environment, improves the credibility of the model experiment results, and solves the problems of complex operation and huge energy consumption of traditional wind turbine array method for simulating wind fields.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A physical device for simulating the influence of wind fields in marine engineering model tests, comprising two No. 1 electric sliding rails (4) and a central processing center (17), characterized in that: Electric slide grooves (3) are provided on the upper surfaces of the two electric slide rails (4). Electric sliders (2) are slidably arranged in the two electric slide grooves (3). Support rods (1) are fixedly arranged on the upper surfaces of the two electric sliders (2). Electric slide rails (5) are fixedly arranged on the upper surfaces of the two support rods (1). Electric sliders (6) are slidably arranged on the electric slide rails (5). The second electric slider (6) is fixedly provided with a mounting block (11) on its lower end face. A tracking camera (7) is embedded in the lower midpoint of the front end face of the mounting block (11). A servo motor (13) is embedded inside the mounting block (11). A rotating seat (12) is fixedly provided at the output end of the servo motor (13). An electric telescopic rod (8) is fixedly provided on the lower end face of the rotating seat (12). A connecting block (9) is fixedly provided at the output end of the electric telescopic rod (8). A fan (10) is fixedly provided on the lower end face of the connecting block (9) through two connecting rods (14). The central processing center (17) includes a control module (1701) and a tracking module (1702). The two electric slide rails (4), the electric slide rail (5), the tracking camera (7), the fan (10) and the servo motor (13) are all electrically connected to the central processing center (17). The two electric slide rails (4) are located on both sides of the simulated water pool and a simulated floating body model (16) is set in the simulated water pool.

2. The physical device for simulating the influence of wind field in a marine engineering model test according to claim 1, characterized in that: The central processing center (17) is electrically connected to a simulated wind field mechanism (15), which includes an action wind simulation (1501) and an action wave simulation (1502).

3. The physical device for simulating the influence of wind field in a marine engineering model test according to claim 2, characterized in that: The wave simulation (1502) simulates ocean environmental waves through a wave-generating system and a wave-dissipating system. The wave-generating system includes a hydraulic wave generator, and the wave-dissipating system includes a wave-dissipating device installed on the opposite bank of the wave generator.

4. The physical device for simulating the influence of wind field in a marine engineering model test according to claim 1, characterized in that: The control module (1701) includes steering control (170101), wind speed control (170102), altitude control (170103), position control (170104) and wave control (170105), and the tracking module (1702) includes real-time tracking (170201) and fixed-point tracking (170202).

5. The operating method of the physical device for simulating the influence of wind field in a marine engineering model test according to any one of claims 1-4, characterized in that, Specifically, the following steps are included: S1. Wind Farm Construction Select a water tank to simulate the marine environment, build the simulated wind field mechanism (15) in the water tank to simulate the marine wind field, and electrically connect the built simulated wind field mechanism (15) to the central processing center (17); S2. Floating Body Simulation The simulated floating body model (16) is placed in the pool, and the simulated wind field mechanism (15) performs the action wind simulation (1501) and action wave simulation (1502), and the tracking module (1702) performs the follow-up tracking.

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