Electrorheological elastomer shock absorber with self-coupling function

Abstract

The invention belongs to the field of structural and mechanical vibration isolation. For shock absorbing devices adopting intelligent materials, it is needed to apply external magnetic field or electric field excitation, it is needed to extra supply energy for shock absorbers, a corresponding control algorithm is designed, so that a vibration isolation system becomes complicated. The invention provides an electrorheological elastomer shock absorber with a self-coupling function. A plurality of power generating pull rods are installed between a shock absorbing pressing rod and the inner cavitytop surface of an upper shell, and an dielectric elastomer stack for power generation is on the upper portions of the power generating pull rods; flexible electrodes between dielectric elastomer thinpieces are in spaced connection with positive and negative electrode extraction electrodes; electrode pieces between electrorheological elastomer single bodies are in spaced connection with positive and negative electrodes of the dielectric elastomer stack; the shock absorbing pressing rod transmits vibration energy to the dielectric elastomer power generating pull rods and the dielectric elastomer stack therein is driven to undergo tension and compression deformation; the dielectric elastomer stack and an electrorheological elastomer laminated construction below the shock absorbing pressing rod are good in rigidity matching performance; and a strong electric field can be provided, and the self-coupling function is achieved.

Description

Technical field [0001] The invention relates to a shock absorber, and more specifically, to an electrorheological elastic body shock absorber with a self-coupling function. Background technique [0002] At present, the most commonly used technology in the field of mechanical vibration reduction is still passive vibration isolation, such as metal springs, rubber springs, gas-filled springs, and hydraulic shock absorbers. Although the overall vibration damping performance of this type of shock absorber is good, because its stiffness and damping are uncontrollable, it is only suitable for certain fixed vibration conditions and lacks the flexibility of vibration control; and this type of shock absorber is generally resistant to transverse shear The defect of poor performance, and gas-filled springs and hydraulic shock absorbers have high requirements for sealing. Once the gas or hydraulic oil leaks, the vibration reduction effect will be lost. The use of active vibration isolation t...

AI Technical Summary

Problems solved by technology

The permanent magnet power generation voltage is proportional to the cutting frequency of the coil, so it is difficult to generate high voltage under the condition of small amplitude and low frequency, and the coil needs to consider the heat release under the condition of long-term vibration, so it is necessary to increase the heat dissipation unit Increased device complexity

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