关键词: 飞机装配工艺, 公差设计模型, 灰色关联, 粒子群优化算法, 多目标优化设计

Abstract: To consider the influence of tolerance on manufacturing cost comprehensively,assembly cost was introduced to the tolerance optimization design model of aircraft assembly.Aiming at the typical assembly method,a multi-objective optimization design model based on manufacturing cost and quality loss was developed,which realized the tolerance optimization design under different assembly methods. The grey correlation theory combined with particle swarm optimization algorithm was applied to tolerance optimization design,and an improved strategy with tolerance design features was proposed to achieve the solution of the model effectively.Taking a typical aircraft component as example,the effectiveness of proposed method was verified,and the results of different assembly methods were also analyzed.

Key words: aircraft assembly process, tolerance design model, grey correlation, particle swarm optimization algorithm, multi-objective optimization design