Controllable damper with virtual inertia

Abstract

The invention discloses a controllable damper with virtual inertia, which can restrain a vibration acceleration. According to the controllable damper with the virtual inertia, 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 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 inertia can achieve an automatic controllability adjustment effect very well, has 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 specifically relates to the proposal and realization of a virtual inertial 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. Fastness and comfort are the themes of the current development of automobiles and high-speed trains. Due to the increase in speed and poor line quality, the traditional passive suspension method will be difficult to meet the requirements of the smooth running of rolling stock, because after its parameters are determined, its frequency It is also only certain that it does not have the automatic adjustment function. However, the active suspension method requires external energy to be provided, and additional force needs to be applied to the mechanical structure...

AI Technical Summary

Problems solved by technology

When the acceleration is large, the vibration speed is small. It can be seen that the damper will generate a large vibration acceleration while suppressing the vibration speed, and the vibration acceleration is not well suppressed.

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