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Finite element analysis software is the main tool for the analysis and verification of complex lug. The commercial software represented by ANSYS occupies the main position in the field of finite element. Based on the open source finite element software SALOME and Code_Aster, using Python language and Pyqt5 framework, a lug simulation system is developed, which has the functions of guide type lug rapid modeling, automatic high-quality mesh generation, automatic acquisition of lug linearization path, automatic evaluation and report issue. The system is completely independent and controllable and replaces the conventional method of manually defining the stress linearization path, which effectively improves the evaluation efficiency of the lug. At the same time, the calculation results are compared with the ANSYS calculation results, and the error is less than 3%, which meets the accuracy requirements.
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