Method and system for controlling mechanical vibration

A technology of mechanical vibration and mechanical system, applied in the control/regulation system, mechanical oscillation control, non-electric variable control and other directions, can solve the problems of unadjustable change of adjustment time, long oscillation period of two weeks, etc., to achieve optimal work efficiency, The effect of work efficiency and operation safety

Active Publication Date: 2021-07-23
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

However, the adjustment time of these methods is twice the damped oscillation period, the adjustment time is fixed and cannot be adjusted, and the two-week oscillation period is too long for many applications.

Method used

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  • Method and system for controlling mechanical vibration
  • Method and system for controlling mechanical vibration
  • Method and system for controlling mechanical vibration

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Embodiment Construction

[0021] The control method and system provided by mechanical vibration will be described in detail below with reference to the accompanying drawings and specific embodiments. In the following description, various aspects of the present invention will be described. However, those skilled in the art can implement the present invention by using only some or all of the structures or processes of the present invention. For clarity of explanation, specific numbers, arrangements and sequences are set forth, but it will be apparent that the invention may be practiced without these specific details. In other instances, well-known features have not been described in detail in order not to obscure the invention.

[0022] figure 1 Give a diagram of the vibration control process for a single-mode mechanical system. Send the drive command to the vibration controller for filtering. The filtered instructions are used to drive the movement of the mechanical system to achieve the task of vibr...

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Abstract

The invention provides a control method and system for a mechanical vibration problem. A lightweight mechanical system can continuously vibrate in a movement process. The continuous vibration has a great influence on the safe operation of a mechanical system. The invention provides a novel vibration control method. Technical means can be provided for various types of mechanical vibration control problems. The vibration control method provided by the invention is essentially a complex of a notch and a low-pass filter. The notch filtering characteristic of the complex suppresses the vibration of a main vibration mode, and the low-pass filtering characteristic of the complex controls the vibration of a high mode. When the mechanical system only has one vibration mode, one vibration controller is used. When the mechanical system has a plurality of vibration modes, a vibration controller is designed by using the information of the first two vibration modes, so as to control all the vibration modes. The invention further provides an engineering implementation scheme of the method in various mechanical systems.

Description

technical field [0001] The invention relates to providing a new control method and system for a mechanical system to achieve the purpose of reducing vibration. Use the vibration controller to filter the driving instructions, and use the filtered instructions to drive the movement of the mechanical system to achieve the purpose of vibration control. Background technique [0002] Under the demand of lightweight structure, many mechanical systems have light and thin structures. Typical lightweight structures include beams, shafts, connecting rods, plates, ropes, and membranes. This lightweight structure has the technical characteristics of low frequency and small damping, and has a continuous vibration phenomenon. Continuous vibration affects the motion performance of mechanical systems and threatens safe work. Main vibration control methods: smooth curve, inputshaping and closed-loop feedback control. [0003] Smooth curves are widely used in CNC systems. It has a low-pas...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D19/02
CPCG05D19/02
Inventor 黄杰龙震海叶家辉高天天丁敏灵
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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