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A time integration algorithm based on the state transition matrix for structures with time varying and nonlinear properties

โœ Scribed by Robert E. Bartels


Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
371 KB
Volume
81
Category
Article
ISSN
0045-7949

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โœฆ Synopsis


A variable order method of integrating the structural dynamics equations that is based on the state transition matrix has been developed. The method has been evaluated for linear time variant and nonlinear systems of equations. When the time variation of the system can be modeled exactly by a polynomial it produces nearly exact solutions for a wide range of time step sizes. Solutions of a model nonlinear dynamic response exhibiting chaotic behavior have been computed. Accuracy of the method has been demonstrated by comparison with solutions obtained by established methods.