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Active absorption type plate-pushing wave generation device and method based on moment feedback

An absorption-type, push-plate technology, which is applied in measuring devices, fluid dynamics tests, and machine/structural component tests, can solve the problems of low measurement accuracy of water level sensors, susceptibility to environmental influences, and unsatisfactory elimination of reflected waves. Achieve the effect of convenient acquisition, small environmental impact and high precision

Active Publication Date: 2016-03-30
TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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Problems solved by technology

However, the water level sensor has the disadvantages of low measurement accuracy and easy to be affected by the environment, and because the water level sensor is often placed at a certain distance from the wave-making plate, what is measured is not the real-time water level in front of the plate, so that the reflection wave is eliminated. not ideal

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  • Active absorption type plate-pushing wave generation device and method based on moment feedback
  • Active absorption type plate-pushing wave generation device and method based on moment feedback

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Embodiment Construction

[0013] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0014] The invention will be described in detail below with reference to the accompanying drawings and examples.

[0015] The principle of active absorbing wave-making based on torque feedback provided by the invention is that the existence of reflected waves will affect the force on the push plate, thereby affecting the torque of the servo motor; The output torque is compared with the theoretical torque under the condition of no reflection through the absorption filter, and the motion signal is corrected by real-time feedback to achieve the purpose of active absorption wave generation.

[0016] Based on the above principles, the present invention provides an active absorbing push plate wave-making device based on torque feedback, including an industrial computer 1, a controller 2, a servo motor 3, a torque ...

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Abstract

The invention provides an active absorption type plate-pushing wave generation device based on moment feedback, and the device comprises an industrial personal computer, a controller, a servo motor, a moment sensor, an absorption filter, and a push plate, wherein the industrial personal computer is connected with the controller, and is used for transmitting a position signal of a wave generator. The controller is connected with the servo motor, and drives the servo motor to rotate according to the received signal. The servo motor drives the push plate to move through a mechanical structure. The moment sensor is located in the servo motor, and is used for collecting the output torque of the motor in real time. One end of the absorption filter is connected with the moment sensor, and receives the collected real-time torque, and the other end of the absorption filter is connected with the controller, and enables a motion signal after feedback correction to be transmitted to the controller. The device is high in precision of the wave generation technology, and the impact on the device from an environment is small. The feedback signal is convenient to obtain. The wave generation technology can generate a long-time stable regular wave and random wave sequence, and improves the accuracy of wave model tests.

Description

technical field [0001] The invention belongs to the field of test devices for ships and ocean engineering, and in particular relates to an active absorbing push plate wave-making technology based on torque feedback. Background technique [0002] Wave-making technology is a necessary test device in ships and ocean engineering laboratories. Common wave-making technologies are divided into two types: push plate type and rocking plate type. In medium and shallow water tanks or pools, push plate wave-making technology is mainly used. Due to the influence of hydraulic structures and pool walls, the reflected wave will be reflected twice on the wave-making plate, so that the wave generated by the wave-making machine will deviate from the target wave, especially in the long-term irregular wave test, the secondary Adverse effects of reflections can seriously bias test results. In order to eliminate the secondary reflection, most of the push plate wavemakers in my country currently ...

Claims

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Application Information

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IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 陈汉宝张鹏陈松贵魏仁哲张华庆王收军周然陈广来周艳朝张二林左志刚
Owner TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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