基于广义轴理论的产品拆卸路径规划

如何将所有可行的拆卸路径进行紧凑、合理的表达是实现产品拆卸路径规划时首要解决的问题.为此,要对指定拆卸类型下的装配体进行有效的子装配体聚类.为在产品拆卸路径规划中实现子装配体聚类的优化,同时避免传统方法所造成的组合爆炸等问题,引用并扩展了表达零件问紧密程度的配合关系等概念,并结合对装配结构和装配过程的深入分析,提出符合工程语义的广义轴理论以及拆卸优先级修正系数等概念.在具体操作上,首先借助邻接矩阵的表达形式并结合同轴度系数函数和拆卸优先级别系数分配表等对应关系得到同轴隶属度矩阵及其修正矩阵.然后,结合模糊数学中模糊聚类分析的有关算法,得到具有传递性的模糊等价矩阵以及分属不同截距下的动态产品聚类关系图.最后,结合此关系图和拆卸优先级别系数分配表,实现子装配体的聚类优化.经验证,所提方法增强了拆卸路径划分同工程实际的一致性,同时减少了计算工作量.

Disassembly Sequence Planning Based on Generalized Axis Theory

How to obtain the compact and reasonable expression of all feasible disassembly paths has become the most important problem to be resolved in disassembly sequence planning. In order to optimize the sub-assembly clustering in planning of disassembly path, and to avoid combination explosion problem of calculation caused by traditional method,a theory of generalized axis conformed with the engineering semantic information and the concept about disassembly priority adjustment coefficient are put forward, consid...