DocumentCode :
620236
Title :
Amended disturbance observer design and its application in active vibration control for piezoelectric structure
Author :
Li Shengquan ; Zhao Rong ; Li Juan ; Mo Yueping
Author_Institution :
Sch. of Energy & Power Eng., Yangzhou Univ., Yangzhou, China
fYear :
2013
fDate :
25-27 May 2013
Firstpage :
3028
Lastpage :
3033
Abstract :
To improve the vibration suppression performance of LQR based real structural vibration control system, an amended disturbance observer design method was presented for an all-clamped stiffened panel with unmodeled error, harmonic effect and acceleration sensor noise. Then, a compound control strategy is proposed to suppress the structural vibration excited by external sinusoidal disturbance, via combing the amended DOB and the traditional LQR optimized by the chaos sequence. Both theory analysis and vibration control experiment results have shown good disturbances and measurement noise rejection performances of the proposed active vibration control strategy.
Keywords :
elasticity; linear quadratic control; noise abatement; observers; piezoelectric devices; sensors; structural panels; vibration control; LQR; acceleration sensor noise; active vibration control strategy; all-clamped stiffened panel; amended DOB; amended disturbance observer design method; chaos sequence; compound control strategy; external sinusoidal disturbance; harmonic effect; measurement noise rejection performances; piezoelectric structure; real structural vibration control system; structural vibration suppression; unmodeled error; vibration suppression performance improvement; Accelerometers; Mathematical model; Noise; Noise measurement; Resonant frequency; Vibration control; Vibrations; active vibration control; disturbance observer (DOB); optimal control; piezoelectric; stiffened panel;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control and Decision Conference (CCDC), 2013 25th Chinese
Conference_Location :
Guiyang
Print_ISBN :
978-1-4673-5533-9
Type :
conf
DOI :
10.1109/CCDC.2013.6561465
Filename :
6561465
Link To Document :
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