RESEARCH PAPERS: Design Engineering Papers

On the Dynamic Simulation of Large Nonlinear Mechanical Systems. Part 1: An Overview of the Simulation Technique. Substructuring and Frequency Domain Considerations

[+] Author and Article Information
R. J. Cipra

School of Mechanical Engineering, Purdue University, West Lafayette, Ind.

J. J. Uicker

Department of Mechanical Engineering, The University of Wisconsin, Madison, Wis.

J. Mech. Des 103(4), 849-856 (Oct 01, 1981) (8 pages) doi:10.1115/1.3254997 History: Received June 01, 1980; Online November 17, 2009


In Part 1 an analytical technique is presented for determining the dynamic response of large complex nonlinear systems. The simulation technique is aimed at this class of problems having many describing coordinates, a complex model description, and nonlinear effects which need to be included for sufficient accuracy. The technique uses substructuring to look at complex systems, frequency reduction to handle large numbers of coordinates, and a numerical integration technique which includes the nonlinear effects. The method is seen to have much potential and can be applied to various problems including those having changing topology. The technique can be applied to any large nonlinear problem for which an appropriate model can be formulated.

Copyright © 1981 by ASME
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