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virtual elastic controllable damper

A damper and elastic technology, which is applied in the field of the proposal and implementation of virtual elastic controllable dampers, can solve the problem that vibration displacement is not well suppressed, and achieve controllable automatic adjustment, strong practicability, and cost control. Effect

Inactive Publication Date: 2015-10-07
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that while the damper suppresses the vibration velocity, the vibration displacement is not well suppressed

Method used

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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 virtual elastic controllable damper includes a sensor module, a signal acquisition and processing module, an embedded control module and a controllable damper module; the sensor module includes a displacement sensor and a measurement circuit for measuring the mechanical structure system The vibration displacement and the measured vibration displacement signal are delivered to the signal acquisition and processing module; the signal acquisition and processing module includes a differentiator, a multi-way switch, a sample holder and an analog-to-digital converter A / D, and the differentiator will The vibration displacement signal is converted into a vibration velocity signal, the multi-way switch and the sample holder sample the vibration displacement signal and the vibration velocity signal, and the sample...

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Abstract

The invention discloses a controllable damper with virtual elasticity, which can restrain vibration displacement. According to the controllable damper with the virtual elasticity, the vibration displacement of a mechanical structure system is measured in real time by a displacement sensor; a vibration displacement signal is processed by a signal acquiring and processing module, and a signal which can be identified by an embedded control module is obtained; the optimum damping value is obtained by the embedded control module through arithmetic processing and transmitted to a controllable damper module; the controllable damping module adjusts a damping parameter of the mechanical structure system to change the damping of the system; therefore, the vibration displacement becomes smaller and smaller, and the efficiency and accuracy of the mechanical structure system such as a machine tool and the like are not influenced no matter how a system operation environment changes. Besides, the controllable damper with the virtual elasticity can achieve an automatic controllability adjustment effect very well, has quite high practicability, and is suitable for being popularized and applied in the damper field, and structural complexity of the system is not increased.

Description

technical field [0001] The invention belongs to the field of dampers, and in particular relates to the proposal and realization of a virtual elastic controllable damper. Background technique [0002] In recent years, with the rapid development of science and technology and the unprecedented increase in productivity, people have put forward higher requirements for the dynamic performance of structures and mechanical systems. With the development of modern production technology, machine tools (milling machines, planers, lathes, etc.) Precision and precision are the themes in the development of mechanical structure systems such as machine tools. In the process of machine tool processing, mechanical vibration will inevitably occur. These vibrations may cause a certain displacement deviation, thereby affecting the surface quality of the workpiece, accelerating the wear between the tool and the machine tool, and seriously causing the machine tool to fail to work normally. work e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/50F16F9/53
Inventor 陈春俊何洪阳林建辉刘璐孙宇
Owner SOUTHWEST JIAOTONG UNIV
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