论文部分内容阅读
从参数化模型和模型拓扑特征出发,提出了一套六面体网格重构的有限元模型建模方法.同时,使用随动点来约束网格的拓扑边界,保证网格的正交性,确保了网格重构后的网格质量;结合现有的商用软件ICEM的网格生成算法,开发了基于特征的参数化有限元(FE)建模程序.最终,针对航空发动机低压涡轮带冠叶片的叶冠参数进行的多学科优化(MDO),实例验证了网格重构方法的有效性和可行性.
Based on the parametric model and the topological features of the model, a finite element modeling method of hexahedral mesh reconstruction is proposed. At the same time, the follow point is used to constrain the topological boundary of the mesh to ensure the orthogonality of the mesh, Based on the mesh generation algorithm of ICEM, a feature-based parametric finite element (FE) modeling program was developed.Finally, aiming at the problem that aeroengine low-pressure turbine with crown blades (MDO) with leaf-crown parameters, and the examples verify the effectiveness and feasibility of the mesh reconstruction method.