关键词: 装配序列规划, 遗传算法, 配合约束

Abstract: To improve the efficiency of assembly sequences planning, a new approach based on assembly constraints and genetic algorithm was proposed. Assembly constraints were classified and the characteristic dimension of each kind was defined. The concept of Feature Mark (FM) was introduced to describe assembly feature and assembly constraint. Assembly capability function was designed to measure the feasibility of assembly based on the similarity degree between FMs of parts. Then, fitness function was built according to assemble ability function. Furthermore, reserve strategy for descendants was proposed to reduce the number of useless descendants. The reserve strategy was also used to check the validity of descendants. Finally, the validity and feasibility of the abovementioned algorithm was proved by an application example.

Key words: assembly sequences planning, genetic algorithm, assembly constraint