Experimental and Numerical Analysis of Nonlinear Phenomena in a Stochastically Excited Beam System with Impact

✍ Scribed by N.Van De Wouw; H.L.A.Van Den Bosch; A.De Kraker; D.H.Van Campen

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 590 KB
• Volume: 9
• Category: Article
• ISSN: 0960-0779
• DOI: 10.1016/s0960-0779(98)00073-3

✦ Synopsis

The response of strongly nonlinear dynamic systems to stochastic excitation exhibits many interesting characteristics[ In this paper\ a strongly nonlinear beam!impact system under broad and small banded\ Gaussian noise excitations is investigated[ The response of this system is investigated numerically as well as experimentally[ The emphasis lies on frequency domain characteristics[ Phenomena like multiple resonance frequencies and stochastic equivalents of harmonic and subharmonic solutions are found[ Improved understanding of these stochastic response characteristics is obtained by comparing them to nonlinear periodic response features of the system[ It is shown that these stochastic response phenomena can provide information on the periodic response characteristics of the system[ The observed stochastic characteristics have more general value and meaning than mere application to this system suggests[ Þ 0887 Elsevier Science Ltd[ All rights reserved[