Automatically approximating the material properties and boundary conditions applied to a axisymmetric thermal analysis of a quasi-axisymmetric component
FINITE ELEMENTS IN ANALYSIS AND DESIGN(2024)
摘要
This paper describes an innovative method which automatically calculates the material properties and boundary conditions which must be applied to an axisymmetric Finite Element (FE) model of a quasi-axisymmetric component, to account for the fact that some regions in a quasiaxisymmetric model are not fully axisymmetric. The automated process has been implemented using the Application Programming Interface (API) of a commercial FE package and builds on an existing process which automatically creates an axisymmetric FE mesh from a 3D CAD model of a quasi-axisymmetric component. The method is demonstrated for a series of component models. For the thermal analysis of an aerospace turbine rear structure model, the FE model was created from the 3D CAD model in approximately 2 min and gave nodal temperatures within 9% of a 3D FE model.
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关键词
Idealisation,Quasi-axisymmetric models,Axisymmetric models,Finite element analysis,Heat transfer applications
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