Nonlinear Normal Modes of a Continuous Cantilever Beam with Nonlinear Energy Sink Absorber

Yong Chen; Yi Xu

doi:10.4028/www.scientific.net/AMM.325-326.214

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 325-326Nonlinear Normal Modes of a Continuous Cantilever...

Nonlinear Normal Modes of a Continuous Cantilever Beam with Nonlinear Energy Sink Absorber

Abstract:

Using nonlinear energy sink absorber (NESA) is a good countermeasure for vibration suppression in wide board frequency region. The nonlinear normal modes (NNMs) are helpful in dynamics analysis for a NESA-attached system. Being a primary structure, a cantilever beam whose modal functions contain hyperbolic functions is surveyed, in case of being attached with NESA and subjected to a harmonic excitation. With the help of Galerkins method and Raushers method, the NNMs are obtained analytically. The comparison of analytical and numerical results indicates a good agreement, which confirms the existence of the nonlinear normal modes.

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Periodical:

Applied Mechanics and Materials (Volumes 325-326)

Pages:

214-217

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.325-326.214

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Online since:

June 2013

Authors:

Yong Chen, Yi Xu

Keywords:

Continuous Cantilever Beam, Nonlinear Energy Sink Absorber, Nonlinear Normal Mode

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References

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