Active vibration control in Duffing mechanical systems using dynamic vibration absorbers

This paper deals with the multi-frequency harmonic vibration suppression problem in forced Duffing mechanical systems using passive and active linear mass–spring–damper dynamic vibration absorbers. An active vibration absorption scheme is proposed to extend the vibrating energy dissipation capabilit...

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Bibliographic Details
Published in:Journal of sound and vibration 2014-07, Vol.333 (14), p.3019-3030
Main Authors: Beltrán-Carbajal, F., Silva-Navarro, G.
Format: Article
Language:English
Subjects:
Absorption
Disturbances
Dynamical systems
Mechanical systems
Nonlinear dynamics
Nonlinearity
Vibration
Vibration control
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Summary:This paper deals with the multi-frequency harmonic vibration suppression problem in forced Duffing mechanical systems using passive and active linear mass–spring–damper dynamic vibration absorbers. An active vibration absorption scheme is proposed to extend the vibrating energy dissipation capability of a passive dynamic vibration absorber for multiple excitation frequencies and, simultaneously, to perform reference position trajectory tracking tasks planned for the nonlinear primary system. A differential flatness-based disturbance estimation scheme is also described to estimate the unknown multiple time-varying frequency disturbance signal affecting the differentially flat nonlinear vibrating mechanical system dynamics. Some numerical simulation results are provided to show the efficient performance of the proposed active vibration absorption scheme and the fast estimation of the vibration disturbance signal.
ISSN:0022-460X
1095-8568
DOI:10.1016/j.jsv.2014.03.002