Study on the Nonlinear Suspension Characteristic of Magnetic Suspended Vibration Isolator

摘要：

　　The definition of stiffness and damping for magnetic suspended vibration isolator was proposed in this paper.The coupling relationship between system controller parameters,mechanical structure parameters and dynamic stiffness is revealed by studying the nonlinear stiffness and damping of magnetic suspension vibration isolator.The frequency domain characteristics of nonlinear stiffness of magnetic suspended vibration isolator are studied combined PID control law.The results show that the system has high support stiffness in low frequency and high frequency bands.The amplitude-frequency characteristics of lower stiffness in middle frequency band are bathtub-shaped.The dynamic stiffness of the system can flexibly designed by changing the controller parameters in the stable region of the system.

关键词： magnetic suspended vibration isolator nonlinear stiffness damping PID control

作者: Weiwei Zhang Cuicui Ji Tingting Wang

作者单位: School of Mechanical and Electrical Engineering,Hohai University,ChangZhou,213022

会议类型: 国际会议

会议名称: the 16th International Symposium on Magnetic Bearings (第十六届国际磁悬浮轴承大会) (ISMB6)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2018-08-13（万方平台首次上网日期，不代表论文的发表时间）