Long term structural dynamics of mechanical systems with local nonlinearities

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This paper deals with the long term behavior of periodically excited mechanical systems consisting of linear components and local nonlinearities. The number of degrees of freedom of the linear components is reduced by applying a component mode synthesis technique. Lyapunov exponents are used to identify the character of the long term behavior of a nonlinear dynamic system, which may be periodic, quasi-periodic or chaotic. Periodic solutions are calculated efficiently by solving a two-point boundary value problem using finite differences. Floquet multipliers are calculated to determine the local stability of these solutions and to identify local bifurcation points. The methods presented are applied to a beam system supported by a one-sided linear spring, which reveals very rich, complex dynamic behavior. [Author abstract; 17 Refs; In English]
Originele taal-2Engels
Pagina's (van-tot)147-153
TijdschriftJournal of Vibration and Acoustics
Nummer van het tijdschriftapril
StatusGepubliceerd - 1996


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