Optimal Design of MR Damper and Dynamic Characteristics

摘要：

Magnetorheological(MR)fluid dampers offer rapid variation in damping properties in a reliable fail-safe manner and low power consumption.These characteristics make them ideal for semi-active control in structures and vehicle applications in order to efficiently suppress vibration.This paper describes the design,manufacturing and characterizing of a prototype MR damper.The MR damper’s working principle is discussed and governed equations are derived by using Bingham plastic model.The optimal dimensions of the MR damper are obtained by finite element analysis.Furthermore,the Bouc-Wen model is used to describe the dynamic characteristics of the prototype MR damper.All optimized parameters in model are obtained by a least-squares optimization method.Theoretical and experimental results demonstrate that the model can describe the dynamic characteristics of the MR damper accurately,thus can be used to implement semi-active suspension control system with the MR damper in vehicle.

关键词： MR damper Optimal design Finite element analysis Dynamic characteristics

作者: L. Zheng Y.N. Li J.S. Wei S.S. Li R.G. Li

作者单位: State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing,China Chongqing Zhongyi Shock Absorber Factory,Chongqing,China

会议类型: 国际会议

会议名称: The World Forum on Smart Materials and Smart Structures Technology(SMSST07)(2007年世界智能材料与智能结构技术论坛)

会议地点: 重庆·南京

会议语种:英文

在线出版日期: 2007-05-01（万方平台首次上网日期，不代表论文的发表时间）