Modeling of magnetorheological fluid damper with force lag considerations
Magnetorheological(MR)damper is one of the most promising devices for structural vibration reduction.Consequently,there has been a great deal of research effort in developing these dampers,and a wide range of modeling techniques has also been proposed.However,few studies consider effect of force lag caused by slipping of joint bearing or a little air mixing.Due to the phenomenon of residual air in damper or slipping of joint bearing has universal background,in order to describe these characteristics on force vs.velocity and force vs.displacement responses,a new alternative to existing models is proposed.On the basis of experimental results,the parameters of the model are optimized.As slipping of the joint bearing is considered,the new model can quite well capture the responses of practical damper,especially at initial segment of reverse movement of piston.Moreover,analysis shows that,in this experiment,the force lag is mainly caused by slipping of joint bearing instead of residual air in damper.
Magnetorheological fluid damper model hysteresis force lag
X.C. Guan C.F. Bian P.F. Guo J.P. Ou
School of Civil Engineering,Harbin Institute of Technology,Harbin,P.R.China School of Civil Engineering,Harbin Institute of Technology,Harbin,P.R.China;School of Civil Engineer
国际会议
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)
重庆·南京
英文
2007-05-01（万方平台首次上网日期，不代表论文的发表时间）