[1]QIU Zhi-cheng,WU Hong-xin.Adaptive control for vibration of flexible structures based on the characteristic model[J].CAAI Transactions on Intelligent Systems,2007,2(5):36-41.
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Adaptive control for vibration of flexible structures based on the characteristic model

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 2 Number of periods: 2007 5 Page number: 36-41 Column: 学术论文—智能系统 Public date: 2007-10-25
Title:
Adaptive control for vibration of flexible structures based on the characteristic model
Author(s):
QIU Zhi-cheng1;  WU Hong-xin2
1. School of Mechanical Engineering, South China University of Technology, Guang zhou 510641, China；
 2.Beijing Institute of Control Engineering, Chinese Academy of Space Technology, Beijing 100080, China
Keywords:
flexible structures;  active vibration control;  characteristic model;  adaptive co ntrol
CLC:
TP273
DOI:
-
Abstract:
Spacecraft are kinds of coupled systems made up of rigid bodies and flexible ap pendages. Vibration is unavoidably induced by attitude control or external excit ations. Low amplitude vibration near the equilibrium point is especially difficu lt to suppress, and this is harmful to stability and attitude control accuracy. To solve this problem, a golden section adaptive control method based on the cha racteristic model was adopted, in which a differential damping term was introduc ed to suppress vibration. An experimental setup was designed and manufactured to verify this approach. The effectiveness of active vibration controllers at supp ressing unwanted vibration due to environmental excitation was investigated, esp ecially undesirable oscillations caused by motor torque during hub slewing. Expe rimental results show that this algorithm not only increases the effectiveness of vibration damping but also damps low amplitude vibrations near the equilibri um point faster than traditional control schemes, proving that this control sche me improves control of vibration.
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