电磁力参数快速寻优的转子多频振动抑制研究  

Multi-frequency Vibration Suppression in Rotor-Bearings System Based on Fast Optimizing Search Algorithm About the Electromagnetic Force Parameters

作　　者：姚剑飞[1] 刘亮[1] 王维民[1] 

机构地区：[1]北京化工大学机电工程学院,北京100029

出　　处：《振动．测试与诊断》2018年第4期738-743,共6页Journal of Vibration,Measurement & Diagnosis

基　　金：国家重点基础研究发展计划("九七三"计划)资助项目(2012CB026000);国家自然科学基金资助项目(51135001);中央高校基本科研业务费资助项目(JD1410;JD1713)

摘　　要：针对转子-轴承系统中的转子多频振动问题,以转子-轴承-电磁作动器系统为研究对象,建立装有电磁作动器的转子系统动力学模型,提出了一种基于电磁力参数快速寻优的转子系统多频振动主动抑制方法。采用变步长寻优策略,快速获取电磁作动器的电流最佳参数,通过向转子施加具有多个频率成分的旋转电磁力来抑制转子的多频振动。实验结果表明,快速寻优策略比整周寻优用时短,能够实现转子系统多个频率振动成分的主动抑制。A multi-frequency periodic vibration control approach is proposed for the rotor-bearings system based on the algorithm for the fast optimizing of electromagnetic parameters.First,a finite element model of the rotor-bearing-electromagnetic actuator system is established.Then,the control system optimizes the current value using varying-step optimizing algorithm.It restrains vibration by applying multiple frequency-matched control force to the rotor.The experiments are carried out on the rotor-bearings test rig and the results indicate that the proposed control strategy reduces the time compared with that of the whole circle search algorithm.This paper offers another method for active suppression of multiple frequency vibration of a rotor system.

关 键 词：多频振动 快速寻优 电磁作动器 转子-轴承系统 

分 类 号：TH113[机械工程—机械设计及理论] TP273[自动化与计算机技术—检测技术与自动化装置]