A flywheel model open water performance test method and device

Abstract

The present invention relates to the field of open-water performance testing of marine propellers, and more specifically to a method and apparatus for testing the open-water performance of a flywheel propeller model for high-speed boats, for conducting open-water performance research on flywheel propellers. The method of the present invention comprises: installing a test device, rotating a flywheel via a motor, and providing a forward velocity to the flywheel via a trailer; the flywheel moves forward at a constant speed while paddling water at a certain depth, obtaining the flywheel torque via a torque sensor between the flywheel and the motor shaft system, and obtaining the flywheel's lift and thrust via a force balance on the test device. The present invention is suitable for open-water performance testing of marine propellers.

Description

Technical Field

[0001] The invention relates to the field of open water performance testing of marine propellers, and in particular to an open water performance testing method and device for a flywheel propeller model for high-speed boats. Background Art

[0002] Flywheel propulsion is a newly emerging propulsion system for high-speed boats. It is an improved and optimized version of the traditional paddle wheel propeller and offers greater advantages and a wider range of applications than paddle wheels. As a new marine propulsion system, research into its structure and open-water performance is necessary to facilitate subsequent design and performance optimization. Marine propulsion systems typically obtain their open-water performance through model open-water performance testing.

[0003] Conventional marine propulsion systems primarily consist of propellers. Open-water dynamometers are primarily used to measure propeller speed, thrust, torque, and other open-water performance parameters during open-water propeller model testing. However, flywheel propulsion differs from conventional marine propulsion systems in its usage mode, thrust, and torque direction. Currently, specialized testing instruments and methods are unavailable. Therefore, a completely new testing system and the design and development of a flywheel propulsion model open-water performance testing method are necessary. Summary of the Invention

[0004] The purpose of the present invention is to provide a flywheel model open water performance test method and device for conducting open water performance research of a flywheel propeller.

[0005] The technical solution of the present invention is:

[0006] A flywheel model open water performance test method, comprising:

[0007] The test device is installed, the flywheel is driven to rotate by the motor, and the trailer provides the flywheel with forward speed; the flywheel moves forward at a constant speed while paddling water at a constant speed in water at a certain depth, the flywheel torque is obtained through the torque sensor between the flywheel and the motor shaft system, and the lift and thrust of the flywheel are obtained through the force balance on the test device.

[0008] The test device comprises:

[0009] Trailer 1, measuring bridge 2, round pipe 3, mounting base 4, dynamometer 5, motor 6, reducer 7, coupling A8, torque sensor 9, coupling B10, guide seat 11, flywheel 12, connecting rod 13;

[0010] The trailer 1 ensures the running speed; the measuring bridge 2 is connected to one end of the round tube 3 to control the lifting of the round tube 3; one end of the round tube 3 is connected to the measuring bridge 2, and the other end is connected to the force measuring balance 5; one side of the mounting base 4 is connected to the force measuring balance 5, and the other side is connected to the motor 6, the reducer 7, the torque sensor 9, and the guide seat 11; one side of the force measuring balance 5 is connected to the round tube 3, and the other side is connected to the mounting base 4; the motor 6 is installed on the mounting base 4, and the output end is connected to the reducer 7; one end of the reducer 7 is connected to the motor 6, and the other end is connected to the coupling Coupling A8; one end of coupling A8 is connected to reducer 7, and the other end is connected to torque sensor 9; one end of torque sensor 9 is connected to coupling A8, and the other end is connected to coupling B10; one end of coupling B10 is connected to torque sensor 9, and the other end is connected to connecting rod 13, and guide seat 11 is installed on mounting base 4, and connecting rod 13 passes through the hole of guide seat 11; flywheel 12 is connected to guide seat 11; one end of connecting rod 13 is connected to flywheel 12, and the other end passes through guide seat 11 and is connected to coupling B10.

[0011] Also includes:

[0012] Adjust the flywheel to the test height via the measuring bridge.

[0013] After connecting the flywheel, turn on the motor and observe whether the flywheel rotates at a uniform speed. If not, adjust the coaxiality of each connecting part until the flywheel rotates at a uniform speed.

[0014] Repeat the test after adjusting different vehicle speeds, different flywheel drafts, and different types of flywheels to test the flywheel resistance and torque.

[0015] A flywheel model open water performance test device, comprising:

[0016] Trailer 1, measuring bridge 2, round pipe 3, mounting base 4, dynamometer 5, motor 6, reducer 7, coupling A8, torque sensor 9, coupling B10, guide seat 11, flywheel 12, connecting rod 13;

[0017] The trailer 1 ensures the running speed; the measuring bridge 2 is connected to one end of the round tube 3 to control the lifting of the round tube 3; one end of the round tube 3 is connected to the measuring bridge 2, and the other end is connected to the force measuring balance 5; one side of the mounting base 4 is connected to the force measuring balance 5, and the other side is connected to the motor 6, the reducer 7, the torque sensor 9, and the guide seat 11; one side of the force measuring balance 5 is connected to the round tube 3, and the other side is connected to the mounting base 4; the motor 6 is installed on the mounting base 4, and the output end is connected to the reducer 7; one end of the reducer 7 is connected to the motor 6, and the other end is connected to the coupling Coupling A8; one end of coupling A8 is connected to reducer 7, and the other end is connected to torque sensor 9; one end of torque sensor 9 is connected to coupling A8, and the other end is connected to coupling B10; one end of coupling B10 is connected to torque sensor 9, and the other end is connected to connecting rod 13, and guide seat 11 is installed on mounting base 4, and connecting rod 13 passes through the hole of guide seat 11; flywheel 12 is connected to guide seat 11; one end of connecting rod 13 is connected to flywheel 12, and the other end passes through guide seat 11 and is connected to coupling B10.

[0018] The motor drives the flywheel to rotate, and the trailer provides the flywheel with forward speed; the flywheel moves forward at a constant speed while paddling water at a constant speed in water at a certain depth. The flywheel torque is obtained through the torque sensor between the flywheel and the motor shaft system, and the lift and thrust of the flywheel are obtained through the force balance on the test device.

[0019] Repeat the test after adjusting different vehicle speeds, different flywheel drafts, and different types of flywheels to test the flywheel resistance and torque.

[0020] The advantages of the present invention are:

[0021] This test method and device aims to fill the gaps in existing domestic test methods and has developed a special open-water performance test method for a flywheel propeller model. The advantages of this invention are:

[0022] 1) The test method is simple in principle and reliable in operation.

[0023] 2) The test data is accurate, reliable and has good repeatability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and examples, but they are not intended to limit the present invention.

[0026] This invention primarily supplements existing tests and tests a new marine propulsion system to facilitate the design and performance optimization of future flywheel propulsion systems. The main principle is: a motor drives the flywheel, while a high-speed trailer provides forward velocity. The flywheel plows through water at a constant speed while simultaneously moving forward. A torque sensor between the flywheel and the motor shaft system measures the flywheel's torque, while a six-component force balance at the top of the device measures the flywheel's lift and thrust.

[0027] The main contents of the present invention include:

[0028] 1) Design and installation of test equipment

[0029] like Figure 1 The entire test device mainly includes: trailer 1, measuring bridge 2, round tube 3, mounting base 4, force balance 5, motor 6, reducer 7, coupling A8, torque sensor 9, coupling B10, guide seat 11, flywheel 12, and connecting rod 13. Among them, trailer 1 mainly ensures the running speed; measuring bridge 2 is used to connect one end of round tube 3 and can control the lifting and lowering of round tube 3; one end of round tube 3 is connected to measuring bridge 2, and the other end is connected to force balance 5; mounting base 4 is connected to the balance on one side, and to motor 6, reducer 7, torque sensor 9, and guide seat 11 on the other side; force balance 5 is connected to round tube 3 on one side, and to mounting base 4 on the other side; motor 6 is installed on mounting base 4, and the output end is connected to reducer 7; one end of reducer 7 is connected to motor 6, and the other end is connected to coupling Coupling A8; one end of coupling A8 is connected to reducer 7, and the other end is connected to torque sensor 9; one end of torque sensor 9 is connected to coupling A8, and the other end is connected to coupling B10; one end of coupling B10 is connected to torque sensor 9, and the other end is connected to connecting rod 13, and guide seat 11 is installed on mounting base 4, and connecting rod 13 passes through the hole of guide seat 11; flywheel 12 is connected to guide seat 11; one end of connecting rod 13 is connected to flywheel 12, and the other end passes through guide seat 11 and is connected to coupling B10.

[0030] Install the round tube 3 on the measuring bridge 2 and fix it, install the force measuring balance 5 on one side of the mounting base 4, and tighten the motor 6, reducer 7, torque sensor 9, and guide seat 11 in sequence on the other side of the mounting base 4. The motor 6 is connected to the reducer 7, and the other end of the reducer 7 is connected to the torque sensor 9 through the coupling A8. The other end of the torque sensor 9 is connected to the connecting rod 13 of the guide seat 11 through the coupling A10. Finally, connect the flywheel 12 to the other end of the connecting rod 13.

[0031] 2) Test steps

[0032] The main experimental steps of the present invention include:

[0033] 1. Install the corresponding equipment and sensors on the mounting base and connect them to each other. After connecting the flywheel, turn on the motor and observe whether the flywheel rotates at a uniform speed. If not, adjust the coaxiality of each connection until the flywheel rotates at a uniform speed.

[0034] 2. Install the round pipe on the trailer test bridge, and install the debugged test device and flywheel on one end of the round pipe;

[0035] 3. Adjust the flywheel test height through the measuring bridge;

[0036] 4. After the balance reaches zero, start the trailer and accelerate to the test speed and stabilize;

[0037] 5. After the test is completed, the trailer is returned to the dock and the test data is recovered;

[0038] 6. Adjust different vehicle speeds, different flywheel draft depths, and different types of flywheels to test flywheel resistance and torque;

[0039] 7. Repeat steps 1 to 7 until all tests are completed.

Claims

1. A flywheel model open water performance test method, characterized in that: include: Install the test device, use the motor to drive the flywheel to rotate, and the trailer provides the flywheel with forward speed; The flywheel moves forward at a constant speed while paddling water at a constant speed in water at a certain depth. The flywheel torque is obtained through a torque sensor between the flywheel and the motor shaft system, and the lift and thrust of the flywheel are obtained through a force balance on the test device. The test device comprises: Trailer (1), measuring bridge (2), round pipe (3), mounting base (4), force balance (5), motor (6), reducer (7), coupling A (8), torque sensor (9), coupling B (10), guide seat (11), flywheel (12), connecting rod (13); The trailer (1) ensures the running speed; the measuring bridge (2) is connected to one end of the round tube (3) to control the lifting of the round tube (3); one end of the round tube (3) is connected to the measuring bridge (2), and the other end is connected to the force balance (5); one side of the mounting base (4) is connected to the force balance (5), and the other side is connected to the motor (6), the reducer (7), the torque sensor (9), and the guide seat (11); one side of the force balance (5) is connected to the round tube (3), and the other side is connected to the mounting base (4); the motor (6) is mounted on the mounting base (4), and the output end is connected to the reducer (7); one end of the reducer (7) is connected to the motor (6), and the other end is connected to the coupling The coupling A (8) is connected to the reducer (7) at one end and to the torque sensor (9) at the other end; the torque sensor (9) is connected to the coupling A (8) at one end and to the coupling B (10) at the other end; the coupling B (10) is connected to the torque sensor (9) at one end and to the connecting rod (13) at the other end; the guide seat (11) is installed on the mounting base (4), and the connecting rod (13) passes through the hole of the guide seat (11); the flywheel (12) is connected to the guide seat (11); the connecting rod (13) is connected to the flywheel (12) at one end and passes through the guide seat (11) at the other end and is connected to the coupling B (10).

2. A flywheel model open water performance test method according to claim 1, characterized in that: Also includes: Adjust the flywheel to the test height via the measuring bridge.

3. A flywheel model open water performance test method according to claim 2, characterized in that: Also includes: After connecting the flywheel, turn on the motor and observe whether the flywheel rotates at a uniform speed. If not, adjust the coaxiality of each connecting part until the flywheel rotates at a uniform speed.

4. A flywheel model open water performance test method according to claim 1, characterized in that: Also includes: Repeat the test after adjusting different vehicle speeds, different flywheel drafts, and different types of flywheels to test the flywheel resistance and torque.

5. A flywheel model open water performance test device, characterized in that: include: Trailer (1), measuring bridge (2), round pipe (3), mounting base (4), force balance (5), motor (6), reducer (7), coupling A (8), torque sensor (9), coupling B (10), guide seat (11), flywheel (12), connecting rod (13); The trailer (1) ensures the running speed; the measuring bridge (2) is connected to one end of the round tube (3) to control the lifting of the round tube (3); one end of the round tube (3) is connected to the measuring bridge (2), and the other end is connected to the force balance (5); one side of the mounting base (4) is connected to the force balance (5), and the other side is connected to the motor (6), the reducer (7), the torque sensor (9), and the guide seat (11); one side of the force balance (5) is connected to the round tube (3), and the other side is connected to the mounting base (4); the motor (6) is mounted on the mounting base (4), and the output end is connected to the reducer (7); one end of the reducer (7) is connected to the motor (6), and the other end is connected to the coupling The coupling A (8) is connected to the reducer (7) at one end and to the torque sensor (9) at the other end; the torque sensor (9) is connected to the coupling A (8) at one end and to the coupling B (10) at the other end; the coupling B (10) is connected to the torque sensor (9) at one end and to the connecting rod (13) at the other end; the guide seat (11) is installed on the mounting base (4), and the connecting rod (13) passes through the hole of the guide seat (11); the flywheel (12) is connected to the guide seat (11); the connecting rod (13) is connected to the flywheel (12) at one end and passes through the guide seat (11) at the other end and is connected to the coupling B (10).

6. A flywheel model open water performance test device as claimed in claim 5, characterized in that: The motor drives the flywheel to rotate, and the trailer provides the flywheel with forward speed; the flywheel moves forward at a constant speed while paddling water at a constant speed in water at a certain depth. The flywheel torque is obtained through the torque sensor between the flywheel and the motor shaft system, and the lift and thrust of the flywheel are obtained through the force balance on the test device.

7. A flywheel model open water performance test device according to claim 6, characterized in that: Repeat the test after adjusting different vehicle speeds, different flywheel drafts, and different types of flywheels to test the flywheel resistance and torque.

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