Modeling and analysis of smart localized structural elements for nonlinear vibration control of a taut string

Oded Gottlieb; Giuseppe Rega; Walter Lacarbonara

doi:10.1117/12.475237

10 July 2002 Modeling and analysis of smart localized structural elements for nonlinear vibration control of a taut string

Oded Gottlieb, Giuseppe Rega, Walter Lacarbonara

Author Affiliations +

Proceedings Volume 4693, Smart Structures and Materials 2002: Modeling, Signal Processing, and Control; (2002) https://doi.org/10.1117/12.475237
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

The behavior of smart localized structural elements for nonlinear vibration control of a taut string is investigated in this manuscript. A nonlinear lumped mass dynamical system is derived and analyzed numerically to reveal conditions for possible forced vibration reduction. The strategy employed consists of an open loop excitation approach enabled via actuation of a smart element by a slight harmonic change of its length. Results of a bifurcation analysis reveal possible vibration reduction via two distinct mechanisms: i) parametric excitation that enables reduction of external forcing and ii) energy transfer from the directly excited vertical response to both rotation and horizontal motions.

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Oded Gottlieb, Giuseppe Rega, and Walter Lacarbonara "Modeling and analysis of smart localized structural elements for nonlinear vibration control of a taut string", Proc. SPIE 4693, Smart Structures and Materials 2002: Modeling, Signal Processing, and Control, (10 July 2002); https://doi.org/10.1117/12.475237

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