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http://dx.doi.org/10.5050/KSNVN.2006.16.6.651

A Simple Feed-forward Active Control Method for the Shock Response of a Flexible Beam: Experiments and Its Performance Analysis  

Pyo, Sang-Ho (안동대학교 기계공학부)
Shin, Ki-Hong (안동대학교 대학원 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.16, no.6, 2006 , pp. 651-657 More about this Journal
Abstract
Active control method is applied to a flexible beam excited by a shock impulse in order to reduce the residual vibrations after the shock event. It is assumed that the shock input can be measured and is always occurred on the same point of the beam. If the system is well identified and the corresponding inverse system is designed reliably, it has shown that a very simple feed-forward active control method may be applied to suppress the residual vibrations without using error sensors and adaptive algorithm. Both numerical simulations and experimental results show a promising Possibility of applying to a practical problem. Also, the performance of the method is examined by considering various practical aspects : shock duration, shock magnitude, and control point.
Keywords
Active Control; Simple Feed-forward Control; Flexible Beam; Piezoceramic Actuator; Residual Vibration;
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