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Active reflection compensation servo-type single-board wave making device

A wave-making device and compensating technology, which is applied in measuring devices, fluid dynamics tests, and machine/structural component tests, etc., can solve problems such as low control accuracy, wave environment simulation distortion, and high cost, and simplify the drive mechanism , Improve the frequency response, improve the effect of control accuracy

Inactive Publication Date: 2010-09-15
中国船舶重工集团公司第七〇二研究所
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Problems solved by technology

The presence of re-reflected waves in the test pool will distort the expected incident wave field, distort the simulation of the wave environment, and thus affect the accuracy of the model test results. This is a problem that has plagued wave model tests for a long time.
[0003] The wave-making driving devices of the existing wave-making machines are mainly blowers, inertial motors or hydraulic driving devices. The wave-making devices using blowers or inertial motors have the disadvantages of low wave simulation frequency and low control accuracy. More complex, higher cost, higher maintenance costs

Method used

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  • Active reflection compensation servo-type single-board wave making device
  • Active reflection compensation servo-type single-board wave making device
  • Active reflection compensation servo-type single-board wave making device

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Embodiment Construction

[0017] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, the present invention includes a computer-controlled drive system A, a mechanical system B and a wave measurement feedback system C connected in sequence.

[0019] See figure 1 , The computer-controlled drive system A is composed of a computer control unit 1, a motor drive unit 2 and an AC servo motor 3. The computer control unit 1 receives the target signal, drives the AC servo motor 3 through the motor drive unit 2, the AC servo motor 3 transmits the kinetic energy to the mechanical system B, and feeds back the position signal to the computer control unit 1 and the motor drive unit 2, and the computer control unit 1 Simultaneously receive the wave height feedback signal from the wave measurement feedback system C.

[0020] See figure 1 , Mechanical system B is composed of coupling 4, bearing 5, screw m...

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Abstract

The invention provides an active reflection compensation type single-board wave making device which comprises a computer control and drive system, a mechanical system and a wave measurement and feedback system which are sequentially connected. By adopting an active reflection compensation wave making technology, waves meeting the requirement of test precision are made, and meanwhile, waves reflected from a ship model, an opposite pool wall and a wave absorber can be effectively eliminated; and more than 80 percent of reflection waves are absorbed, thus the condition that the reflection waves strike a wave making mechanism to generate reflection waves once again is avoided so as to effectively improve the wave simulation quality of a pool or a water tank. A servo motor is used as a drive device, and a stepper motor control card and an encoder counting card are adopted to carry out two-position control, thereby the frequency response and the wave making control precision are improved, the drive mechanism is simplified and the maintenance cost is greatly reduced.

Description

technical field [0001] The invention belongs to the field of hydrodynamic testing, and relates to a single-plate wave simulation mechanism for a water tank or a pool, in particular to an active reflection compensation servo single-plate wave-making device. Background technique [0002] In the wave simulation test, the surrounding walls of the test pool are a closed boundary. When the wave generated by the wave maker on one side of the pool is transmitted to the object under test or the pool wall in the pool, reflected waves will be generated; When it is transmitted to the wave generator, a re-reflected wave will be generated. The re-reflected wave does not exist on the actual sea surface, because the boundary of the actual sea surface is open, and the energy of the reflected wave has been consumed during the transmission process in the vast sea area. The presence of re-reflected waves in the test tank will distort the expected incident wave field, distort the simulation of ...

Claims

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Application Information

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IPC IPC(8): G01M10/00E02B1/02
Inventor 顾民魏纳新孙强祁江涛
Owner 中国船舶重工集团公司第七〇二研究所
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