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机械产品的装配序列直接影响到产品质量和成本,装配序列规划是产品设计的重要内容.为快速实现产品装配序列规划,根据零部件间的装配优先关系,提出了一种改进的装配序列规划方法,并基于蚁群算法予以实现.该方法充分考虑装配过程中的几何约束关系,并引入稳定性、装配经验等因素的影响,以稳定性、装配经验、装配工具和方向的改变次数为影响因子构建优化目标评价体系,使所得解更具有实际指导意义.在求解过程中,根据几何约束关系运用动态候选集合策略限制蚁群的搜索空间,提高了搜索效率;考虑稳定性因素的影响改进了蚁群的状态转移规则,同时引入局部-全局信息素更新规则,保证了蚁群获得最优或近优解.最后,通过实例研究验证了算法的可行性和高效性.
The assembly sequence of mechanical products directly affects the product quality and cost, and assembly sequence planning is an important part of product design.To quickly realize the assembly sequence planning of products, an improved assembly sequence planning method is proposed according to the assembly priority among components , Which is based on the ant colony algorithm.This method takes full account of the geometric constraints in the assembly process and introduces the influence of stability, assembly experience, assembly experience and the number of change of direction as the influence factors In the process of solving the problem, the dynamic candidate set strategy is used to limit the search space of the ant colony according to the geometric constraints, and the search efficiency is improved. The influence of the stability factor is improved. Group state transition rules, while introducing local - global pheromone update rules, to ensure that the ant colony get the optimal or near optimal solution.Finally, the feasibility and efficiency of the algorithm is verified through case studies.