A numerical technique to predict periodic and quasi-periodic response of nonlinear dynamic systems

Sarkar, Sunetra and Venkatraman, Kartik (2003) A numerical technique to predict periodic and quasi-periodic response of nonlinear dynamic systems. In: Computers & Structures, 81 (13). pp. 1383-1393.

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Abstract

A frequency domain based algorithm using Fourier approximation and Galerkin error minimization has been used to obtain the periodic orbits of large order nonlinear dynamic systems. The stability of these periodic response is determined through a bifurcation analysis using Floquet theory. This technique is applicable to dynamic systems having both analytic and nonanalytic nonlinearities. This technique is compared with numerical time integration and is found to be much faster in predicting the steady state periodic response.

Item Type:	Journal Article
Publication:	Computers & Structures
Publisher:	Elsevier
Additional Information:	Copyright of this article belongs to Elsevier.
Keywords:	Fourier–Galerkin–Newton technique;Floquet analysis;Bifurcations
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	02 Jun 2006
Last Modified:	19 Sep 2010 04:28
URI:	http://eprints.iisc.ac.in/id/eprint/7303

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