关键词: 多场环境, 等截面结构, 性能分析, 结构优化, 机电产品

Abstract: Lots of products have been applied with multiple types of loading,and the operating requirements of structure in are an issue that must be considered in design phase.Aiming at the structure optimization of electromechanical products under multi-field environment,the optimization design method of equal-section part was proposed based on the differential element.Informed by finite element theory,the expression of equal-section structure and its performance under different type of loading were analyzed and discussed.After analyzing the operating requirements in multi-field environment such as temperature field and static force field,the mapping relationships between the topological change of equal-section structure and its performance in multi-field were presented.With establishing the evolution model of moment of inertia for equal-section structure under the strength requirement,the optimization design method of equal-section structure was given to meet with operating requirements in multi-field environment.The equal-section structural of door trim strip in refrigeration was analyzed and optimized with several operating requirement,and its topological optimization section was given to validate the feasibility of the proposed method.

Key words: multi-field operation, equal-section structure, performance analysis, structure optimization, electromechanical product