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| A Structured Mesh Optimization Method for Polygonal Columnar Thermal Analysis Model Based on Drosophila Algorithm |
| Guo Yuxuan1,2, Zhang Xiaoping1,2, Liu Donghao1,2, Zhang Zhu2, Zhu Guanghui3 |
1. National-Local Joint Engineering Laboratory of Marine Mineral Resources Exploration Equipment and Safety Technology Hunan University of Science and Technology Xiangtan 411201 China;
2. College of Information and Electrical Engineering Hunan University of Science and Technology Xiangtan 411201 China;
3. Xiangtan Electric Manufacturing Co. Ltd Xiangtan 411101 China |
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Abstract The structured mesh generation in polygonal cylindrical thermal analysis model has low quality, such as rotor guide bar of AC traction motor. Therefore, an optimized method of structured mesh generation is proposed. In this paper, the solution domain model of AC traction motor thermal analysis is established, and the quadrilateral region mass calculation method of AC traction motor polygonal cylinder model is determined. Then, a quadrilateral region division method of polygonal cylinder model based on built-in quadrilateral is proposed, and the fruit fly optimization algorithm (FOA) is used to optimize the comprehensive quality of each partition mode to obtain the corresponding optimal partition mode. Through the finite element method, the proposed method is compared with the traditional structured mesh generation method, and its effect is verified. Finally, the above analysis is further verified by experiments. The results show that compared with the traditional structured mesh generation method, the method proposed in this paper greatly improves the mesh generation of the polygon cylinder model of AC traction motor, thereby improving the accuracy of thermal analysis of AC traction motor, which has good application value.
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Received: 09 April 2020
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2021, Vol. 36 
