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 quasi-axisymmetric 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.

本文描述了一种创新方法，可自动计算必须应用于准轴对称部件的轴对称有限元 (FE) 模型的材料属性和边界条件，以考虑准轴对称模型中的某些区域是不完全轴对称。该自动化流程是使用商业 FE 包的应用程序编程接口 (API) 实现的，并建立在现有流程的基础上，该流程可根据准轴对称组件的 3D CAD 模型自动创建轴对称 FE 网格。该方法针对一系列组件模型进行了演示。对于航空涡轮机后部结构模型的热分析，在大约 2 分钟内根据 3D CAD 模型创建了 FE 模型，并给出了 3D FE 模型 9% 以内的节点温度。