摘要
磁悬浮转子系统刚度、阻尼可调范围小,振动抑制能力差,限制了磁悬浮轴承的推广使用,基于磁流变效应的磁流变装置可以对自身的刚度、阻尼进行快速、可控的调节。本文以磁流变技术和磁悬浮技术为基础,对基于磁流变阻尼器的磁悬浮转子系统的机械结构进行了设计与研究,提出了一种新的结构方案,并将该结构简化为有限元模型,借助ANSYSWORKBENCH与MATLAB软件对该结构的减振特性进行了仿真分析,验证了该结构的可行性,可以通过调整阻尼器刚度、阻尼来改变转子临界转速附近的振幅,有效帮助转子系统跨越临界转速。
As for the damping controllability of MRF,structure design and research based on the MRF are made for the magnetic suspension rotor damper in this paper.According to the working principle of MRF damper,damper mechanical designare completed and the mathematical model of magnetic suspension rotor are established and simplified.Modal analysis of the rotor is simulated by the means of ANSYS and numerical simulations of amplitude of the rotor is made by the means of MATLAB.The results show that the MRF damper has a good damping effect,and can avoid the rotor resonance appropriately.
出处
《山东科技大学学报（自然科学版）》
CAS
2016年第5期109-113,120,共6页
Journal of Shandong University of Science and Technology(Natural Science)
基金
青岛市黄岛区科技计划项目(2014-1-106)
青岛市博士后研究人员应用研究项目
山东科技大学人才引进启动基金资助项目(2013RCJJ017)
关键词
磁流变
磁悬浮
有限元
临界转速
减振
MRF
magnetic suspension
finite element method
critical speed
vibration reduction
