547 - Adaptive-like active vibration supression for a nonlinear mechanical system using on-line algebraic identification
Beltrán-Carbajal F., Silva-Navarro G., Sira-Ramírez H.
Abstract
This paper deals with the attenuation problem of harmonic vibrations in nonlinear mechanical systems using active vibration absorbers and without explicitly employing vibration measurements. The algebraic identification scheme is applied for the on-line estimation of the excitation frequency and amplitude of exogenous vibrations affecting the primary mechanical system. The algebraic identification is then combined with a certainty equivalence differential flatness based controller to guarantee the asymptotic output tracking of an off-line and pre-specified output trajectory and, simultaneously, the asymptotic cancellation of the harmonic vibrations. Some numerical results show the dynamic and robust performance of the algebraic identification and the active vibration control.
Citation
Beltrán-Carbajal F.; Silva-Navarro G.; Sira-Ramírez H.: Adaptive-like active vibration supression for a nonlinear mechanical system using on-line algebraic identification, CD-ROM Proceedings of the Thirtheenth International Congress on Sound and Vibration (ICSV13), July 2-6, 2006, Vienna, Austria, Eds.: Eberhardsteiner, J.; Mang, H.A.; Waubke, H., Publisher: Vienna University of Technology, Austria, ISBN: 3-9501554-5-7
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