The Structure Design And Characteristic Analysis Of Electromagnetic Self-energized MRE Shock Absorber

In this dissertation, we design a electromagnetic self-energized electromagnetic magnetorheological elastomer shock absorber contains vibration reduction and energy saving two aspects. The vibration damper utilizes electromagnetic induction principle,transforming the vibration energy into electric energy to control the stiffness and damping of the magnetorheological elastomer in the vibration damper, enabling MRE shock absorber damping. The main research work of this paper as follows:1、The electromagnetic self-energized electromagnetic magnetorheological elastomers shock absorber in power device which based on Faraday’s principle of electromagnetic are analyzed. Meanwhile, we make use of COMSOL Multiphysics software emulation to analyze the effect of vibration frequency and amplitude on its performance of power generation.2、Different types of magnetorheological elastomers were prepared by using three kinds of materials: carbonyl iron powder, silicon rubber and two methyl silicone oil, which tested in the magnetic field with no magnetic field,we make the contrast study of experimental data and analyzes it, choosing the best comprehensive performance of the magnetorheological elastomer material as the vibration damper of this paper.3、Based on the electromagnetic vibration of power generation technology and magnetorheological effect of magnetorheological materials, design and produce a electromagnetic self-energized magnetorheological elastomer shock absorber. On the shock absorber in the control current I=0A(no magnetic field), electromagnetic self-energized control current of generator for power generation, I=1A three control conditions of vibration response under different excitation frequency characteristic test experiment data, and carries on the comparative analysis of the findings: Within a certain band, compared to the performance with the effect of control current I =1A action, the vibration acceleration amplitude of the response of the shock absorber was reduced more when the control current I = 0A and no magnetic field were taken into our research. From that, we achieved the purpose of making the shock absorber damping. However at each excitation frequency,electromagnetic self-energized control current of generator for power generation andcontrol current I=1A make different effects on damping, from which we can verify that the damping performance of the electromagnetic solenoid confession elastomers shock absorber is adjustable.