An effective strategy for the multibody simulation of jointed FE models in the framework of the floating frame of reference formulation

Wolfgang Witteveen, Hans Irschik

Research output: Contribution to conferencePaper

Abstract

In multibody systems (MBS), where elastic bodies are represented in the frame work of the ‘floating frame of reference formulation’ (FFRF), structural deformation is usually computed by the superposition of time invariant trial vectors (commonly called ‘modes’). However, the mode bases, which are discussed in the literature, do not take joints into special account at the stage of mode generation. In the presented paper we propose a problem-oriented extension of classical mode bases in order to consider the presence of joints. In the novel extension which we call ‘Joint Interface Modes’ (JIMs), Newton’s 3rd law across the joint is taken into account at the stage of mode generation, which leads to a superior convergence at the stage of mode based computation.
Original languageEnglish
Publication statusPublished - 2008
EventGAMM 2008 - Bremen, Germany
Duration: 31 Mar 20084 Apr 2008

Conference

ConferenceGAMM 2008
CountryGermany
CityBremen
Period31.03.200804.04.2008

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