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Nonlinear Dynamics of Beams with Stochastic Parameter Variations

Manohar, CS and Gupta, Sayan (2001) Nonlinear Dynamics of Beams with Stochastic Parameter Variations. In: IUTAM Symposium on Nonlinearity and Stochastic Structural Dynamics, 85 . pp. 133-145.

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The aim of this paper is to investigate the steady state response of beams under the action of random support motions. The study is of relevance in the context of earthquake response of extended land based structures such as pipelines and long span bridges, and, secondary systems such as piping networks in nuclear power plant installations. The following complicating features are accounted for in the response analysis: (a) differential support motions: this is characterized in terms of cross power spectral density functions associated with distinct support motions, (b) nonlinear support conditions, and (c) stochastically inhomogeneous stiffness and mass variations of the beam structure; questions on non-Gaussian models for these variations are considered. The method of stochastic finite elements is combined with equivalent linearization technique and Monte Carlo simulations to obtain response moments.

Item Type: Journal Article
Publication: IUTAM Symposium on Nonlinearity and Stochastic Structural Dynamics
Publisher: Kluwer Academic Publishers
Additional Information: Copyright of this article belongs to Kluwer Academic Publishers.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 10 Nov 2011 04:16
Last Modified: 10 Nov 2011 04:16
URI: http://eprints.iisc.ac.in/id/eprint/39559

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