Controllable damper with virtual composite function

Abstract

The invention discloses a controllable damper with a virtual composite function, which can restrain a vibration acceleration, speed and displacement at the same time. According to the controllable damper with the virtual composite function, the vibration acceleration of a mechanical structure system is measured by an acceleration sensor; a vibration acceleration 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 through arithmetic processing of the embedded control module and transmitted to a controllable damper module; and the controllable damping module adjust a damping parameter of the mechanical structure system to change the damping of the system, so that the vibration acceleration becomes smaller and smaller, and the efficiency, accuracy, stationarity and comfort 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 composite function can achieve an automatic controllability adjustment effect very well, and is suitable for being popularized and applied in the damper field.

Description

technical field [0001] The invention belongs to the field of dampers, and in particular relates to the proposal and realization of a virtual composite 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. More and more mechanical systems are closely related to people's lives. For example, vehicles such as automobiles and high-speed trains make people travel faster and more conveniently; various lathes, milling machines, planers and other machine tools produce various workpieces for military and civilian use, etc. However, while the mechanical system brings convenience to life, it inevitably generates vibrations, which are harmful to a large extent, and the vibration acceleration will affect the comfort of passengers; the vibration speed will cause wear a...

AI Technical Summary

Problems solved by technology

Since the vibration velocity is the integral of the vibration acceleration and the differential of the vibration displacement, the phase of the vibration velocity lags behind the phase of the vibration acceleration and leads the phase of the displacement. When the acceleration and vibration displacement are large, the vibration velocity is small. It can be seen that the damper is suppressing the vibration At the same time, a larger vibration acceleration will be generated; when the vibration acceleration and vibration displacement are large, the vibration displacement and acceleration are not well suppressed due to the small vibration speed

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