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. (C) 2021 Elsevier Ltd. All rights reserved.
Experimental observations of nonlinear vibration localization in a cyclic chain of weakly coupled nonlinear oscillators / Niedergesäß, B.; Papangelo, A.; Grolet, A.; Vizzaccaro, A.; Fontanela, F.; Salles, L.; Sievers, A. J.; Hoffmann, N.. - In: JOURNAL OF SOUND AND VIBRATION. - ISSN 0022-460X. - 497:(2021), p. 115952. [10.1016/j.jsv.2021.115952]
Experimental observations of nonlinear vibration localization in a cyclic chain of weakly coupled nonlinear oscillators
A. Papangelo;
2021-01-01
Abstract
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. (C) 2021 Elsevier Ltd. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
