Attachment of Mating Faces: an Interrelational Feature Approach
1998 (English)In: 8th Int. ANSYS Conference, August 17-19 1998, Pittsburgh, PA, USA, 1998Conference paper (Other academic)
Many engineering systems are characterized by a physical behavior that to a large extent is determined by complex interactions between subsystems. FE modeling and simulation of the physical behavior of complex systems is enabled by methods and technologies that allow subsystems to be modeled independently of other subsystems, and where systems models can be aggregated from a set of submodels, that that may be defined at various levels of abstraction, i.e. detailed, coarse, and condensed superelements. A method to attach pairs of nodally incompatible submodels is presented in this paper. A major benefit of the approach is that FE submodels and superelements are treated with the same formalism. The essence of the approach starts by first establishing a master-slave relation between sets of nodes on mating faces, followed by a Delaunay triangulation of the selected master node set, and finally a step where each slave nodal degree of freedom (DOF) is mapped to the DOFs of the three most appropriate master nodes. The method is robust and it has been developed as a support tool for FE modeling and simulation of multiphysics behavior of complex systems. It has been implemented in the general purpose FE software ANSYS as a macro library.
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IdentifiersURN: urn:nbn:se:kth:diva-19451OAI: oai:DiVA.org:kth-19451DiVA: diva2:338046
QC 201008102010-08-102010-08-102010-08-11Bibliographically approved