转子-轴承系统中电磁阻尼器理论研究  

Theoretical Research of Electromagnetic Damper in a Rotor-Bearing System

作　　者：童水光[1] 汪希萱[1] 

机构地区：[1]浙江大学化工过程机械研究所,杭州310027

出　　处：《振动工程学报》1992年第1期17-24,共8页Journal of Vibration Engineering

摘　　要：本文对转子轴承系统中电磁阻尼器控制进行理论研究.首先给出带电磁阻尼器的一般线性多自由度转子轴承系统的振动方程;推导出电磁阻尼器产生的电磁力与线圈中的电流,转子线位移和磁性材料性能之间的关系式.然后用状态空间分析方法对振动方程进行解耦,求出受控转子轴承系统的振动响应.最后求出最优控制下反馈电流和状态量之间的关系式.The paper research on the rotor-bearing system controled actively by electromagnetic dampers. Firstly, the vibration equation of general linear multi-freedom flexible rotor-bearing system with the electromagnetic dampers is described. The relationship among the electromagnetic force generated by damper、current on coils、displacement of rotor and magnetic material characteristic is obtained. Then the vibration equation is discoupled by means of state space analysis, the forced vibration response is solved. Finally, the relative formula of optimal control feedback current and state variable is presented.

关 键 词：电磁轴承 电磁阻尼器 振动控制 

分 类 号：O32[理学—一般力学与力学基础]