Author:

Keywords:

noise and vibration engineering

Abstract:

Conventional substructuring methods involve the coupling of substructure models through the common degrees of freedom (DOFs). A Wave-Based Substructuring (WBS) approach is being developed, using a set of basis functions that describe the dynamic behavior 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 WBS procedure. The procedure is first demonstrated on a two-plate assembly structure, to obtain fast predictions of elastic coupling stiffness modifications. The industrial applicability is demonstrated on two automotive test cases.