Rotary type magnetorheological damper capable of outputting asymmetric damping

Abstract

The invention discloses a rotary type magnetorheological damper capable of outputting asymmetric damping. The rotary type magnetorheological damper capable of outputting the asymmetric damping comprises an outer cylinder barrel, a left end cover fixedly connected with the left end of the outer cylinder barrel and a right end cover fixedly connected with the right end of the outer cylinder barrel;an outer iron core, an iron core magnetism isolating barrel, an inner iron core, an inner cylinder barrel and a magnetorheological fluid pushing rod are sequentially arranged inside the outer cylinderbarrel from outside to inside; a first annular channel for circulation flow of magnetorheological fluid is formed between the outer iron core and the outer cylinder barrel, and a second annular channel for circulation flow of the magnetorheological fluid is formed between the inner cylinder barrel and the inner iron core; and the left end cover is provided with a first control assembly and a second control assembly which are used for controlling the magnetorheological fluid to generate different circulation flow loops in the axial direction of the outer cylinder barrel. According to the magnetorheological damper in the technical scheme, semi-active control can be realized by simple hierarchical control, and the dependences on a complex sensing system and a control system are reduced.

Description

technical field [0001] The invention relates to the field of mechanical vibration reduction, in particular to a rotary magneto-rheological damper capable of outputting asymmetrical damping. Background technique [0002] In order to meet the requirements of different vibration reduction / isolation conditions, semi-active dampers with damping controllable characteristics have been gradually researched and applied. The common semi-active dampers are linear magneto-rheological fluid dampers. Considering the working mode and motion characteristics of magnetorheological fluid, it is sometimes limited by the application space, so it is difficult to design a linear damper that meets the requirements, while the rotary magnetorheological damper has a compact structure and is easy to integrate self-sensing Self-powered modules can be used as magnetorheological energy dissipation devices, and in recent years, there have been researches and applications of rotary magnetorheological damper...

AI Technical Summary

Problems solved by technology

However, the traditional rotary magneto-rheological damper mainly outputs symmetrical damping, and in some occasions of reciprocating motion, the damping required for different motion directions is different. Simply relying on the control algorithm to achieve asymmetrical damping will increase the impact on complex sensing systems and The dependence of the control system, so in order to improve reliability, it is necessary to design a rotary magneto-rheological damper that can output asymmetrical damping

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