关键词: 多学科设计优化, 改进协同优化方法, 改进粒子群优化算法, 凝聚约束处理方法

Abstract: Aiming at the problem of calculation difficulty caused by collaborative optimization method's internal defect,an improved collaborative optimization method was proposed.By using the coherent constraint handling method,several constraint conditions of the system-level optimization equations were agglomerated into a single constraint condition.Combined with the penalty function method,this single constraint was transformed into no constraint problem.For those initial points selection which were sensitive in the conventional optimization methods,the improved swarm particle optimization method was applied in collaborative optimization.The proposed method was verified by two typical examples of numerical calculation and decelerator design,and the feasibility and effectiveness of this method was proved.

Key words: multidisciplinary design optimization, improved collaborative optimization method, improved particle swarm optimization algorithm, coherent constraint handling method