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An experimental system for the study of active vibration control-development and modeling

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2 Author(s)
Batta, George R. ; Dept. of Mech., Ind., & Nucl. Eng., Cincinnati Univ., OH, USA ; Chen, A.

A modular rotational vibration system designed to facilitate the study of active control of vibrating systems is discussed. The model error associated with four common types of identification problems has been studied. The general multiplicative uncertainty shape for a vibration system is small in low frequencies, large at high frequencies. The frequency-domain error function has sharp peaks near the frequency of each mode. The inability to identify a high-frequency mode causes an increase of uncertainties at all frequencies. Missing a low-frequency mode causes the uncertainties to be much larger at all frequencies than missing a high-frequency mode. Hysteresis causes a small increase of uncertainty at low frequencies, but its overall effect is relatively small.<>

Published in:

Systems Engineering, 1991., IEEE International Conference on

Date of Conference:

1-3 Aug. 1993