自供能磁流变阻尼器电参数影响特性及隔振性能*

doi:10.19562/j.chinasae.qcgc.2020.01.013

Abstract

Abstract: In order to investigate the influence of electrical parameters on self-powered MR damper, the circuit model of self-powered MR damper with rectifier is established firstly. The frequency response function is deduced. Reducing resistance and inductance of the generator can improve electrical efficiency of self-powered MR damper significantly. Subsequently a quarter vehicle suspension system with self-powered MR damper based on Bingham model is introduced and the mechanical-electrical coupling equation is deduced. The vibration isolation capability is investigated in time and frequency domain respectively. The transmissibility is investigated with electrical parameters altering. The results show that compared with the passive suspension system sprung mass velocity and acceleration is declined by 51% and 78%, the amplitude of transmissibility is reduced about 5 dB, respectively. Enhancing resistance can weaken the vibration isolation capability. Transmissibility is mitigated due to the increment of capacitance and inductance, especially in higher frequency range

Key words: self-powered MR damper, electrical parameters, electro-mechanical coupling model, vibration isolation capability

Gao Xiang, Niu Junchuan, Liu Zhihui, Tian Lili. Electrical Parameters Influence Characteristics and VibrationIsolation Performance of Self-powered MR Damper[J].Automotive Engineering, 2020, 42(1): 88-93.

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Electrical Parameters Influence Characteristics and VibrationIsolation Performance of Self-powered MR Damper

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