新型磁流变液多间隙双质量飞轮研究

摘要/Abstract

摘要： 针对目前磁流变液双质量飞轮装置中普遍存在的刚度突变和可传递阻尼力矩较小的问题，提出了一种具有多工作间隙及可获得良好多级非线性扭转刚度的新型多间隙磁流变液双质量飞轮。通过对其磁感应强度及阻尼力矩进行理论分析，并对其结构设计进行优化，得到优化后结构的磁感应强度分布并实现了阻尼力矩的最大化，进而将磁感应强度和阻尼力矩的计算值与仿真值分别进行对比，最后对其固有特性及受迫振动进行分析。结果表明：新型多间隙磁流变液双质量飞轮有利于改善车辆动力传动系减振效果，不同工况下提供相匹配的输入电流可使减振效果达到最佳，可传递的阻尼力矩远大于普通磁流变液双质量飞轮。研究成果可为新型多间隙磁流变液双质量飞轮的设计提供理论参考。

关键词: 磁流变液多间隙双质量飞轮, 磁感应强度, 阻尼力矩, 减振

Abstract: Aiming at the key problems of the stiffness mutations and smaller damping torque in a magnetorheological fluid dual mass flywheel, a novel MRF-MDMF was proposed to obtain good multistage nonlinear torsional stiffnesses. Through the theoretical analyses of magnetic induction intensity and damping torques of MRF-MDMF, and the optimization of its structure, the magnetic induction intensity distribution of optimized structure and the maximum of damping torques were conducted. Then，the calculated values of magnetic induction and damping torques were compared with the simulation values. Finally, the natural characteristics and the forced vibration were analyzed. The results show that MRF-MDMF is conducive to the improvements of damping effects of powertrain, the matching input currents are used to achieve the best damping effect in different conditions, and its damping torques are far greater than that of the ordinary magnetorheological fluid dual mass flywheel. The results provide a precious theoretical reference for the design of MRF-MDMF.

Key words: magnetorheological fluid multi-gap dual mass flywheel(MRF-MDMF), magnetic induction intensity, damping torque, vibration damping

中图分类号:

U463.2

李斌;李华;姚进. 新型磁流变液多间隙双质量飞轮研究[J]. 中国机械工程.

LI Bin;LI Hua;YAO Jin. Research on a Novel MRF-MDMF[J]. China Mechanical Engineering.

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