A method for reduction of number of actuators in independent modal space control

作     者：Hwang, JH Kim, JS Baek, SH 

作者机构：Hankuk Aviat Univ Dept Aeronaut & Mech Engn Koyang 412791 Kyounggi Do South Korea Hongik Univ Dept Mech Engn Seoul South Korea 

出 版 物：《KSME INTERNATIONAL JOURNAL》 (韩国机械工程师学会国际杂志)

年 卷 期：1999年第13卷第1期

页      面：42-49页

核心收录：

学科分类：08[工学] 0802[工学-机械工程] 

主　　题：vibration control asymptotic stability switching algorithm number of actuators IMSC 

摘      要：In this paper, a modified Independent Modal Space Control (IMSC) that relaxes the fundamental hardware requirement of IMSC is proposed for handling the vibration and attitude control problem of large, flexible structures. The method incorporates a new switching algorithm for dynamically selecting controlled modes and a novel design technique for determining the modal control force. The main advantage of the proposed method is that it minimizes the discontinuity of the modal control forces and assures the asymptotic stability of the closed-loop system. The simplicity and efficiency of the method is demonstrated through an example involving vibration control of a cantilevered beam. The system performance and stability of the proposed method is compared with previously published methods that also seek to reduce the number of actuators in IMSC.