Comparison of reduction methods for deformable multibody dynamics

Parviz E. Nikravesh, Yi Shih Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Several well-known reduction methods for deformable multibody dynamics have been reviewed and compared. All of these methods have been borrowed from structural analysis. A recently proposed reduction method that is derived from the equations of motion, based on a mode condensation process, is also reviewed and compared against the other methods. The general conclusion of this investigation is that the standard condensation methods that are based only on fixed/non-moving boundary conditions should not be used in multibody dynamics. However, when the standard normal modes are accompanied by other properly selected modes, accurate results can be achieved. Similar results can also be obtained by the mode condensation method. The paper pays specific attention to two methods known as the Craig-Bampton reduction and the mode condensation.

Original languageEnglish (US)
Title of host publicationProc. of the ASME Int. Des. Eng. Tech. Conf. and Comput. and Information in Engineering Conferences - DETC2005
Subtitle of host publication5th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
Pages1303-1310
Number of pages8
StatePublished - Dec 1 2005
EventDETC2005: ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - Long Beach, CA, United States
Duration: Sep 24 2005Sep 28 2005

Publication series

NameProceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - DETC2005
Volume6 B

Other

OtherDETC2005: ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
CountryUnited States
CityLong Beach, CA
Period9/24/059/28/05

ASJC Scopus subject areas

  • Engineering(all)

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