自供能磁流变阻尼器电参数影响特性及隔振性能  

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

作　　者：高翔 牛军川[1,2] 刘知辉 田莉莉[1] Gao Xiang;Niu Junchuan;Liu Zhihui;Tian Lili(School of Mechanical Engineering,Shandong University,Jinan 250061;Key Laboratory of High-efficiency and Clean Mechanical Manufacture(Shandong University),Ministry of Education,Jinan 250061)

机构地区：[1]山东大学机械工程学院,济南250061 [2]高效洁净机械制造教育部重点实验室,济南250061

出　　处：《汽车工程》2020年第1期88-93,共6页Automotive Engineering

基　　金：国家自然科学基金(51275275,51675306)资助

摘　　要：为探究电学参数对自供能磁流变阻尼器的影响,首先建立了含整流电路的自供能磁流变阻尼器电路模型,推导电路的频响函数,减小发电模块的电阻与电感能够显著提高阻尼器的电能利用率。随即引入基于Bingham模型的含自供能磁流变阻尼器的1/4车辆悬架系统,推导机电耦合方程,分别在时域和频域研究悬架系统的隔振性能,探究电学参数改变时传递率的变化规律。研究表明,与被动悬架相比,含自供能磁流变阻尼器悬架系统的簧载质量速度与加速度分别降低了51%和78%,传递率幅值降低约5 dB。增大电阻将降低隔振能力,增大电感与电容值,隔振效果变差,在高于第2阶固频区域内更为显著。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.

关 键 词：自供能磁流变阻尼器 电学参数 机电耦合模型 隔振性能 

分 类 号：U463.33[机械工程—车辆工程]