Experimental observations of nonlinear vibration localization in a cyclic chain of weakly coupled nonlinear oscillators

Experimental observations of nonlinear vibration localization in a cyclic chain of weakly coupled nonlinear oscillators

Experimental results on nonlinear vibration localization in a cyclic chain of weakly coupled oscillators with clearance nonlinearity are reported. Numerical modelling and analysis complements the experimental study. A reduced order model is derived and numerical analysis based on the harmonic balanc...

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Bibliographic Details
Published in:Journal of sound and vibration Vol. 497; p. 115952
Main Authors: Niedergesäß, B., Papangelo, A., Grolet, A., Vizzaccaro, A., Fontanela, F., Salles, L., Sievers, A.J., Hoffmann, N.
Format: Journal Article
Language:English
Published: Amsterdam Elsevier Ltd 14-04-2021
Elsevier Science Ltd
Subjects:
Chains
Clearance
Cyclic structure
Harmonic balance method
Localization
Mathematical models
Nonlinear equations
Nonlinear systems
Nonlinearity
Numerical analysis
Oscillators
Reduced order models
Vibration
Vibration localization
Vibration localization
Clearance
Cyclic structure
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Summary:Experimental results on nonlinear vibration localization in a cyclic chain of weakly coupled oscillators with clearance nonlinearity are reported. Numerical modelling and analysis complements the experimental study. A reduced order model is derived and numerical analysis based on the harmonic balance method demonstrates the existence of multiple classes of stable spatially localized nonlinear vibration states. The experiments agree very well with the numerical results. The findings suggest that vibration localization due to fundamentally nonlinear effects may also arise in mechanical structures with relevance in engineering.
ISSN:0022-460X
1095-8568
DOI:10.1016/j.jsv.2021.115952