简化的结构振动自适应前馈控制方法研究  

STUDY ON SIMPLIFIED ADAPTIVE FEEDFORWARD CONTROL FOR VIBRATION REDUCTION OF STRUCTURES

作　　者：鲁民月[1] 顾仲权[1] 杨铁军[2] 

机构地区：[1]南京航空航天大学直升机旋翼动力学国家级重点实验室,南京210016 [2]哈尔滨工程大学动力与核能工程学院

出　　处：《振动与冲击》2005年第1期89-93,共5页Journal of Vibration and Shock

摘　　要：发展一种基于ARX模型描述的实时自适应前馈控制系统,并将其应用到具有拟周期扰力的结构振动控 制中。采用RLS算法处理在线辨识问题,而采用LMS算法进行控制律的更新。实时控制中,辨识和控制的计算都由高 速数字信号处理器完成。此种方法,对于周期扰力以及拟周期扰力激起的结构振动响应都有很好的控制效果。A feedforward adaptive control system based on ARX model description has been developed and applied to the control of structural vibration excited by Pseudo-periodic signals. The real-time system identification is realized by Recursive Ueast Square (RLS) method, while control by Least Mean Square (LMS) algorithm. In control system, system identification and control are calculated by high speed digital signal processing board. Exciting results are obtained when this control algorithm is applied to the structural vibration reduction with periodic and pseudo-periodic signals.

关 键 词：自适应前馈 扰力 在线辨识 高速数字信号处理器 控制方法 控制系统 控制律 拟周期 结构振动响应 简化 

分 类 号：TU311[建筑科学—结构工程] TM935[电气工程—电力电子与电力传动]