In this article we simplify turbine supercharger impeller as a model, which was jointed of axial symmetry entity elements and plane shell elements, for finite elements analysis (FEA).

利用循环对称条件，将增压器叶轮简化为由实体单元与平面壳体单元组合而成的有限元分析模型。

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Using Finite Element Method of Lines smash the area in semidiscretization with plane or axial symmetry element which is develop by the postgraduate last session;

空间上采用有限元线法进行半离散化，采用已有的轴对称单元、平面单元；

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