干摩擦力影响下振动主动控制系统模型的修正。  

Model Update of Active Vibration Control System Influenced by Dry Friction Force

作　　者：赵钟磊 贾建援[2] 

机构地区：[1]空军第二研究所,北京100085 [2]西安电子科技大学机电工程学院,西安710071

出　　处：《振动．测试与诊断》2006年第1期61-63,共3页Journal of Vibration,Measurement & Diagnosis

摘　　要：在利用电磁作动器对微型盘进行振动主动控制的试验中,发现电磁执行装置中的干摩擦力对控制效果有相当大的影响,为此分析了干摩擦力对隔振系统的影响,得出了基于干摩擦力影响下的振动主动控制系统模型,并结合算例分别对考虑干摩擦影响和不考虑干摩擦影响的情况进行了仿真。仿真结果证实:干摩擦力对振动主动控制的效果有着重要不良影响,如果不能正确考虑其在控制系统模型中的作用,将会导致一些错误的发生,乃至控制系统失控。In the test of the electromagnetically active vibration isolation system used in miniature HDD, It is found that the dry friction force in the electromagnetic actuator has a large influence on control results. This paper presents a active control system model considering the dry friction. Two simulations are done, one ignoring the dry friction, the other taking it into account. The results show that the dry friction force in the electromagnetic actuator has much bad influence on the control system , and there would be a lot of mistakes even the system invalidation if it is treated improperly.

关 键 词：振动 电磁作动器 干摩擦力 主动控制 模型修正 

分 类 号：TB114.2[理学—运筹学与控制论]