A wave-based sub-structuring approach for fast vehicle body optimisation
by Stijn Donders, Rabah Hadjit, Marc Brughmans, Luc Hermans, Wim Desmet
International Journal of Vehicle Design (IJVD), Vol. 43, No. 1/2/3/4, 2007

Abstract: Conventional sub-structuring methods involve the coupling of substructure models through the common Degrees of Freedom (DOF). A wave-based sub-structuring approach is being developed, using a set of basis functions that describe the dynamic behaviour at the coupling interfaces. The interface DOFs are expanded in terms of these basis functions, typically reducing the size of the interface description and hence resulting in faster assembly predictions. Obtaining suitable basis functions is a critical step in the wave-based sub-structuring procedure. The procedure is first demonstrated on a two-plate assembly structure. The industrial applicability is then demonstrated on three real test cases from the automotive industry.

Online publication date: Sun, 04-Feb-2007

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