Movable propelling system test bed

Abstract

The invention relates to a mobile propulsion system test bench, which comprises a mobile platform, a water tank and a propulsion test platform, and is characterized in that the water tank is fixedly arranged on the mobile platform; the propulsion test platform is installed in a water pool, is fixed relative to the water pool, and is used for simulating a propulsion system and collecting test data. The pool can be installed on the mobile platform, the propulsion test platform is arranged in the pool and used for simulating a propulsion system and collecting test data, site selection does not need to be considered, the pool can be erected on an open space, the test site is not limited, the propulsion test platform is installed in the pool, and the test data can be obtained through movement of the mobile platform. The water flow acting on the propulsion test platform can be formed in the pool to simulate the load applied to the propulsion test platform, and at the moment, the propulsion test platform can collect test data under different loads so as to realize the load test of the propulsion system of the ship.

Description

Technical Field

[0001] The present invention relates to the technical field of propulsion systems, and in particular to a mobile propulsion system test bench. Background Art

[0002] With the continuous development of marine technology, load testing of ship propulsion systems is necessary to lay the foundation for subsequent technology research and development and engineering applications. Currently, load testing of ship propulsion systems is conducted in water tanks. The flow rate and direction of the water in the tank can be controlled by turbines and other equipment to adjust the load of the ship propulsion system. The operating status of the ship propulsion system under different loads can be tested.

[0003] The propulsion system test bench needs to be sited in advance, including natural waters such as ponds and lakes or artificially prepared pools. The test site is fixed, which greatly limits the number of propulsion system test benches and affects the development of ship technology. Summary of the Invention

[0004] In view of this, it is necessary to provide a mobile propulsion system test bench to solve the problem that the test site of the propulsion system test bench is fixed, which greatly limits the number of propulsion system test benches and affects the development process of ship technology.

[0005] The present invention provides a mobile propulsion system test bench, comprising a mobile platform, a water pool and a propulsion test platform. The water pool is fixed on the mobile platform; the propulsion test platform is installed in the water pool and fixed relative to the water pool, and is used to simulate the propulsion system and collect test data.

[0006] Furthermore, the propulsion test platform includes a hull and a propulsion test piece. The hull is installed in a water pool and fixed relative to the water pool. The propulsion test piece is installed on the hull to simulate the propulsion system and collect test data.

[0007] Furthermore, the propulsion test piece includes an electric motor, a propeller and a force measuring unit, wherein the electric motor, the propeller and the force measuring unit are all installed on the hull, the propeller extends into the water pool, and the measuring end of the force measuring unit is connected to the propeller for detecting the torque of the propeller.

[0008] Furthermore, the propulsion test platform also includes an electric power component and / or a fuel power component, and the electric power component and / or the fuel power component are electrically connected to the electric motor.

[0009] Furthermore, the electric power component includes a battery pack, a battery management system and a DC converter. The battery pack is electrically connected to the battery management system, and the battery pack is electrically connected to the electric motor via the DC converter.

[0010] Furthermore, the fuel power component includes a fuel tank, a turbine, a generator and a rectifier, the fuel tank is connected to the turbine, the turbine is connected to the generator, and the generator is electrically connected to the electric motor via the rectifier.

[0011] Furthermore, the propulsion test platform also includes a detection component, which is installed in the water pool and is used to detect water flow signals.

[0012] Furthermore, it also includes a control platform, which is installed on the mobile platform and connected to the propulsion test platform, and is used to control the movement of the propulsion test platform and receive test data.

[0013] Furthermore, the control platform includes a communication module, a data acquisition module and a controller. The data acquisition module is connected to the propulsion test platform via the communication module for receiving test data. The controller is connected to the propulsion test platform via the communication module for controlling the action of the propulsion test platform.

[0014] Furthermore, the mobile platform includes several first test vehicles and one second test vehicle, the propulsion test platforms are several and are respectively installed on several of the first test vehicles, and the control platform is installed on the second test vehicle.

[0015] Compared with the existing technology, a water pool can be installed on a mobile platform, and a propulsion test platform can be set up in the water pool to simulate the propulsion system and collect test data. There is no need to consider the site selection. The water pool can be set up on a flat open space. The test site is not limited. The propulsion test platform is installed in the water pool. Through the movement of the mobile platform, a water flow acting on the propulsion test platform can be formed in the water pool to simulate the load applied to the propulsion test platform. At this time, the propulsion test platform can collect its test data under different loads to realize the load test of the ship's propulsion system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a mobile propulsion system test bench provided in an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure of the propulsion test platform. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0018] like Figure 1-2As shown, the present invention provides a mobile propulsion system test bench, which includes a mobile platform 100, a water pool 200 and a propulsion test platform 300. The water pool 200 is fixed on the mobile platform 100; the propulsion test platform 300 is installed in the water pool 200 and is fixed relative to the water pool 200, and is used to simulate the propulsion system and collect test data.

[0019] During implementation, a water pool 200 can be installed on the mobile platform 100, and a propulsion test platform 300 can be set up in the water pool 200 to simulate the propulsion system and collect test data. There is no need to consider the site selection. The water pool 200 can be set up on a flat open space. The test site is not limited, and the propulsion test platform 300 is installed in the water pool 200. Through the movement of the mobile platform 100, a water flow acting on the propulsion test platform 300 can be formed in the water pool 200 to simulate the load applied to the propulsion test platform 300. At this time, the propulsion test platform 300 can collect its test data under different loads to realize the load test of the ship's propulsion system.

[0020] The mobile platform 100 in this embodiment can adopt a mobile test vehicle. By moving the mobile test vehicle, the water in the pool 200 forms a water flow, thereby simulating the load acting on the propulsion test platform 300. It can be understood that the mobile test vehicle can simulate the load requirements of the propulsion test platform 300 under different vehicle speeds, as well as uniform speed, acceleration and deceleration.

[0021] The pool 200 in this embodiment can be made of materials such as stainless steel and can be directly installed on the mobile platform 100, replacing the traditional method of manually preparing the pool 200, which requires steps such as digging a pit and waterproofing, and the assembly method is simple.

[0022] The propulsion test platform 300 in this embodiment is installed in the water pool 200 and fixed relative to the water pool 200, and is used to simulate the propulsion system and collect test data.

[0023] In one embodiment, the propulsion test platform 300 includes a hull 310 and a propulsion test piece 320. The hull 310 is installed in the pool 200 and fixed relative to the pool 200. The propulsion test piece 320 is installed on the hull 310 to simulate the propulsion system and collect test data.

[0024] It can be understood that the above-mentioned hull 310 can be fixed on the mobile platform 100 and / or the pool 200, which can be achieved through connecting beams, brackets and other structures, with stable connection being preferred. At the same time, the propulsion test piece 320 is equivalent to the power structure on the hull 310, which is installed on the hull 310 and acts on the water in the pool 200.

[0025] Among them, the propulsion test piece 320 includes an electric motor 321, a propeller 322 and a force measuring unit 323. The electric motor 321, the propeller 322 and the force measuring unit 323 are all installed on the hull 310. The propeller 322 extends into the pool 200. The measuring end of the force measuring unit 323 is connected to the propeller 322 for detecting the torque of the propeller 322.

[0026] In one embodiment, the force measuring unit 323 may be a load cell installed on the propeller 322 .

[0027] To provide power to the motor 321 , in one embodiment, the propulsion test platform 300 further includes an electric power component 330 and / or a fuel power component 340 , and the electric power component 330 and / or the fuel power component 340 are electrically connected to the motor 321 .

[0028] It is understood that the propulsion test platform 300 can be powered by pure electric power, fuel-fired power generation, or hybrid power. This allows verification of system stability under navigational conditions, torque balancing algorithms for multiple electric motors 321, energy management for electric ships, and battery energy distribution technology.

[0029] The propulsion test piece 320 further includes a propulsion frequency converter 324 , and the electric power component 330 and / or the fuel power component 340 are electrically connected to the electric motor 321 via the propulsion frequency converter 324 .

[0030] The electric power component 330 in this embodiment includes a battery pack 331 , a battery management system 332 and a DC converter 333 . The battery pack 331 is electrically connected to the battery management system 332 , and the battery pack 331 is electrically connected to the motor 321 via the DC converter 333 .

[0031] The fuel power component 340 in this embodiment includes a fuel tank 341, a turbine 342, a generator 343 and a rectifier 344. The fuel tank 341 is connected to the turbine 342, the turbine 342 is connected to the generator 343, and the generator 343 is electrically connected to the motor 321 via the rectifier 344.

[0032] The fuel power unit 340 further includes an intake and exhaust system 342a installed on the turbine 342 and a motor auxiliary device 343a installed on the generator 343. The motor auxiliary device 343a includes a motor oil supply system and a motor excitation power supply.

[0033] In order to facilitate the measurement of other information during the ship propulsion system test, the propulsion test platform 300 in this embodiment further includes a detection member 350 . The detection member 350 is installed in the water pool 200 and is used to detect water flow signals.

[0034] In one embodiment, the detection component 350 includes a flow meter 351 , which is installed in the pool 200 and located at the front end of the propeller 322 near the bow of the hull 310 , for detecting the flow rate of water about to hit the propeller 322 .

[0035] In one embodiment, the detection component 350 includes a chiller 352 and a temperature sensor 354. The chiller 352 includes a water tank and a water pump. The water tank is connected to the cooling pipe of the propulsion test component 320 via the water pump, and is used to perform water cooling on the propulsion test component 320. The temperature sensor 354 is installed in the water tank, and the change in water temperature facilitates the subsequent calculation of the total loss of the ship's power system.

[0036] In one embodiment, the detection component 350 also includes an electrical performance sensor 353 and a mechanical sensor 355, wherein the electrical performance sensor 353 is installed on the motor 321 and can be used to collect voltage and current signals, and the mechanical sensor 355 is installed on the motor 321 to measure the torque of the propeller 322.

[0037] In order to control the operation of the propulsion test platform 300, this embodiment also includes a control platform 400. The control platform 400 is installed on the mobile platform 100 and connected to the propulsion test platform 300 for controlling the movement of the propulsion test platform 300 and receiving test data.

[0038] In one embodiment, the control platform 400 includes a communication module 410, a data acquisition module 420, and a controller 440. The data acquisition module 420 is connected to the propulsion test platform 300 via the communication module 410 to receive test data. The controller 440 is connected to the propulsion test platform 300 via the communication module 410 to control the operation of the propulsion test platform 300. Signals can be transmitted between the control platform 400 and the propulsion platform. The control platform 400 also includes a data monitoring module 430 to facilitate data monitoring.

[0039] It is understood that the upper-level functions of control platform 400 can perform parameter testing on propulsion test platform 300 and analyze, process, and back up test data. Furthermore, a connection interface is provided via a switch. Control platform 400 can collect sensor signals such as voltage, current, temperature, speed, torque, and flow. Controller 440 is used to control the power or torque of motor 321.

[0040] At the same time, the control platform 400 can send different instructions to the mobile platform 100 to simulate different navigation conditions encountered in actual operation and make an effective evaluation of the operation of the propulsion test platform 300.

[0041] To facilitate control of multiple propulsion test platforms 300 and improve test efficiency, in one embodiment, the mobile platform 100 includes a plurality of first test vehicles 110 and a second test vehicle 120 , the propulsion test platforms 300 are mounted on the plurality of first test vehicles 110 , and the control platform 400 is mounted on the second test vehicle 120 .

[0042] Compared with the existing technology: a water pool 200 can be installed on the mobile platform 100, and a propulsion test platform 300 can be set up in the water pool 200 to simulate the propulsion system and collect test data. There is no need to consider the site selection. The water pool 200 can be set up on a flat open space. The test site is not limited, and the propulsion test platform 300 is installed in the water pool 200. Through the movement of the mobile platform 100, a water flow acting on the propulsion test platform 300 can be formed in the water pool 200 to simulate the load applied to the propulsion test platform 300. At this time, the propulsion test platform 300 can collect its test data under different loads to realize the load test of the ship's propulsion system.

[0043] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A mobile propulsion system test bench, characterized in that: include: Mobile platforms; A water pool, which is fixed on the mobile platform; The propulsion test platform is installed in the water pool and fixed relative to the water pool, and is used to simulate the propulsion system and collect test data.

2. The mobile propulsion system test bench according to claim 1, characterized in that: The propulsion test platform includes a hull and a propulsion test piece. The hull is installed in a water pool and fixed relative to the water pool. The propulsion test piece is installed on the hull and is used to simulate a propulsion system and collect test data.

3. The mobile propulsion system test bench according to claim 2, characterized in that: The propulsion test piece includes an electric motor, a propeller and a force measuring unit. The electric motor, the propeller and the force measuring unit are all installed on the hull. The propeller extends into the water pool. The measuring end of the force measuring unit is connected to the propeller for detecting the torque of the propeller.

4. The mobile propulsion system test bench according to claim 3, characterized in that: The propulsion test platform further includes an electric power component and / or a fuel power component, and the electric power component and / or the fuel power component are electrically connected to the electric motor.

5. The mobile propulsion system test bench according to claim 4, characterized in that: The electric power component includes a battery pack, a battery management system and a DC converter. The battery pack is electrically connected to the battery management system, and the battery pack is electrically connected to the electric motor via the DC converter.

6. The mobile propulsion system test bench according to claim 4, characterized in that: The fuel power component includes a fuel tank, a turbine, a generator and a rectifier. The fuel tank is connected to the turbine, the turbine is connected to the generator, and the generator is electrically connected to the electric motor via the rectifier.

7. The mobile propulsion system test bench according to claim 1, characterized in that: The propulsion test platform further includes a detection component installed in the water pool for detecting water flow signals.

8. The mobile propulsion system test bench according to claim 1, characterized in that: It also includes a control platform, which is installed on the mobile platform and connected to the propulsion test platform, and is used to control the movement of the propulsion test platform and receive test data.

9. The mobile propulsion system test bench according to claim 8, characterized in that: The control platform includes a communication module, a data acquisition module and a controller. The data acquisition module is connected to the propulsion test platform via the communication module for receiving test data. The controller is connected to the propulsion test platform via the communication module for controlling the action of the propulsion test platform.

10. The mobile propulsion system test bench according to claim 8, characterized in that: The mobile platform includes several first test vehicles and one second test vehicle. The propulsion test platforms are several and are respectively installed on the several first test vehicles. The control platform is installed on the second test vehicle.

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