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Proceedings Paper

Study on active vibration control for high order mode of flexible beam using smart material piezoelectric ceramic
Author(s): Da-fang Wu; Liang Huang; Meng Mu; Yue-wu Wang; Shuang Wu
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Paper Abstract

In order to reduce effective load and lower the launch cost, many light-weight flexible structures are employed in spacecraft. The research of active control on flexible structural vibration is very important in spacecraft design. Active vibration control on a flexible beam with smart material piezoelectric pieces bonded in surface is investigated experimentally using independent modal space control method, which is able to control the first three modes independently. A comparison between the systems responses before and after control indicates that the modal damping of flexible structure is greatly improved after active control is performed, indicating remarkable vibration suppression effect. Dynamic equation of the flexible beam is deducted by Hamilton principle, and numerical simulation of active vibration control on the first three order vibration modes is also conducted in this paper. The simulation result matches experimental result very well. Both experimental and numerical results indicate that the independent modal control method using piezoelectric patch as driving element is a very effective approach to realize vibration suppression, which has promising applications in aerospace field.

Paper Details

Date Published: 12 April 2012
PDF: 10 pages
Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 84091N (12 April 2012); doi: 10.1117/12.923204
Show Author Affiliations
Da-fang Wu, Beihang Univ. (China)
Liang Huang, Beihang Univ. (China)
Yanshan Univ. (China)
Meng Mu, Beihang Univ. (China)
Yue-wu Wang, Beihang Univ. (China)
Shuang Wu, Beihang Univ. (China)

Published in SPIE Proceedings Vol. 8409:
Third International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Yoseph Bar-Cohen; In Lee; Jian Lu, Editor(s)

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