Study on active vibration control for high order mode of flexible beam using smart material piezoelectric ceramic

Da-fang Wu; Liang Huang; Meng Mu; Yue-wu Wang; Shuang Wu

doi:10.1117/12.923204

12 April 2012 Study on active vibration control for high order mode of flexible beam using smart material piezoelectric ceramic

Da-fang Wu, Liang Huang, Meng Mu, Yue-wu Wang, Shuang Wu

Author Affiliations +

Proceedings Volume 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering; 84091N (2012) https://doi.org/10.1117/12.923204
Event: Third International Conference on Smart Materials and Nanotechnology in Engineering, 2011, Shenzhen, China

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.

Citation Download Citation

Da-fang Wu, Liang Huang, Meng Mu, Yue-wu Wang, and Shuang Wu "Study on active vibration control for high order mode of flexible beam using smart material piezoelectric ceramic", Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 84091N (12 April 2012); https://doi.org/10.1117/12.923204

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KEYWORDS

Active vibration control

Sensors

Control systems

Actuators

Electronic filtering

Numerical simulations

Ceramics

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