Theoretical and experimental investigation into dynamic characteristics of a rotor supported on a disk-type magnetorheological fluid damper

摘要：

The dynamic characteristics of an overhung flexible rotor supported on a disk-type magnetorheological(MR)fluid damper based on shear mode were studied both experimentally and theoretically.The effects of applied current,rotor imbalance and MR fluid on the dynamic characteristics of the rotor damper system were examined.The theoretical analysis was based on the Bingham fluid model.The theoretical results are basically in agreement with experiments for the lower weight percentage MR fluids,but there is a great difference for the higher weight percentage MR fluids.For the higher weight percentage MR fluids,a stiffening effect of the MR fluid was experimentally observed.The rheological behaviors of a real MR fluid are quite complex and the Bingham model cannot completely describe the rheological behavior of the higher weight percentage MR fluids.The stiffening effect of the MR fluid should be included in modeling the MR fluid based dampers.

关键词： magnetorheologica fluid damper rotor Bingham model active vibration control

作者: Zhu Changsheng

作者单位: College of Electrical Engineering,Zhejiang University,Hangzhou,300027,Zhejiang,P.R.of 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）