Magnetorheological Elastomer-Magnetorheological Fluid Composite Shock Absorber for Rotational Vibration

Abstract

The invention discloses a magneto-rheological elastomer-magnetorheological fluid compound shock absorber for rotational vibration. The magneto-rheological elastomer-magnetorheological fluid compound shock absorber for rotational vibration comprises an annular magneto-rheological elastomer, a plurality of rotary brackets, coils, a pipeline, sealing elements and a magnetorheological fluid. The annular magneto-rheological elastomer is located in the center position of a whole vibration isolator, and an inner ring is used for mounting a vibrating shaft; the rotary brackets are fixed in an equallyspaced manner on an outer ring of the annular magneto-rheological elastomer; each rotary bracket comprises an arc-shaped rod and a connecting rod; the arc-shaped rod is fixed to the outer ring of theannular magneto-rheological elastomer through the connecting rod; the sealing elements are fixed to two ends of the arc-shaped rod; an arc-shaped pipeline is arranged between adjacent two arc-shaped rods in a sleeving manner; the arc-shaped rods and the arc-shaped pipelines are successively connected to form an annular structure; the pipeline is filled with the elastomer-magnetorheological fluid;the sealing elements are located in two ends of the pipeline; the sealing elements are in tight contact with the inner wall of the pipeline and can move relatively; and the coils wind the connecting rods. The magneto-rheological elastomer-magnetorheological fluid compound shock absorber for rotational vibration disclosed by the invention can change the transmissibility and consumption rate of vibration energy.

Description

technical field [0001] The invention belongs to the field of vibration damping, in particular to a magnetorheological elastomer-magnetorheological fluid composite shock absorber for rotational vibration. Background technique [0002] As a new type of intelligent material, magnetorheological materials have excellent magnetic control characteristics. Magnetorheological elastomers and magnetorheological fluids are two different magnetorheological materials, which have controllable stiffness magnetic field and damping magnetic field controllable characteristics respectively. It has great application potential in the field of vibration damping. [0003] At present, there have been some shock absorbers designed using magnetorheological elastomers as damping elements and dampers designed with magnetorheological fluids as energy-dissipating elements. However, the shock absorber designed using magnetorheological elastomer as the damping element only has the characteristics of stiffn...

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Problems solved by technology

However, the shock absorber designed using magnetorheological elastomer as the damping element only has the characteristics of stiffness control, can only change the transmission rate of vibration energy, and cannot consume vibration energy; the damper designed with magnetorheological fluid as the energy dissipation element It only has controllable damping characteristics, can only consume vibration energy, and cannot reduce the transmission rate of changing energy

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