Piston type impact buffering device based on magnetorheological elastomer particles

Abstract

The invention discloses a piston type impact buffering device based on magnetorheological elastomer particles. The device comprises a cylinder body, a piston rod, a guide sleeve, an end cover, a piston, the magnetorheological elastomer particles, a control circuit and a controller, wherein the inner section of the cylinder body is circular; the end cover is arranged at one end of the cylinder body; the guide sleeve is arranged at the other end of the cylinder body; a through hole is arranged in the axis of the guide sleeve; the piston rod stretches into the cylinder body through the through hole in the axis of the guide sleeve; a through hole channel is arranged in the axis of the piston rod to arrange the control circuit; the tail end of the piston rod is connected to the piston; the piston is formed by two groups of excitation coils and an iron core; the outer diameter of the piston is smaller than the inner diameter of the cylinder body; and the magnetorheological elastomer particles are filled in the cylinder body. According to an energy dissipation device, a novel energy absorption and dissipation scheme is provided through the controllable magnetorheological elastomer particles, and the technical problems that a traditional magnetorheological fluid damper cannot be completely sealed, particle sedimentation fails, and potential pollution is generated to the environment aresolved.

Description

technical field [0001] The invention relates to a damper, in particular to a piston-type impact buffer device based on magnetorheological elastomer particles. Background technique [0002] Dampers are an important part of mechanical vibration control systems. The energy-absorbing and dissipating material used in the magnetorheological fluid damper is magnetorheological fluid, and the damping force of the magnetorheological fluid is changed by applying and controlling a magnetic field. Magneto-rheological fluid dampers have broad application prospects in mechanical and civil engineering because of their simple structure, low energy consumption, and real-time adjustment of the damping force by changing the magnetic field to achieve active or semi-active vibration control. Ideal form of damper. [0003] The existing magnetorheological fluid damper has the following obvious disadvantages: the magnetorheological fluid is prone to particle sedimentation failure, sealing failure ...

AI Technical Summary

Problems solved by technology

It can solve the problem of difficult sealing and anti-leakage existing in magnetorheological fluid materials, making the structure simple, compact and durable

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