Analysis of Electro-Thermal Coupling Topology Optimization Based on Two-Dimensional Density Method
This paper investigates the electro-thermal coupling topology optimization based on the SIMP density method.First,a SIMP density model was established,and the physical relationships and optimization objectives in the electro-thermal coupling system were analyzed.During model establishment,key parameters such as material thermal conductivity,electrical conductivity,and convective heat transfer coefficient were considered,and the concept of adaptive filter radius was introduced.The research shows that the choice of density model,the generation and distribution of Joule heat,and the setting of objective functions significantly affect the optimization results.By comparing structures optimized with different filter radii(0.2 mm,0.4 mm,and 0.8 mm),the effects of various parameters on temperature distribution and structural performance were analyzed.The experimental results demonstrate that appropriate filter radius selection can effectively improve structural performance and reduce temperature standard deviation.This study provides theoretical foundation and practical guidance for the design optimization of electro-thermal coupling systems.
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