基于集合理论的机构自动化选型系统

将机构自动化选型系统分为问题空间和解空间两大部分，建立了基于集合理论的人机结合式机构自动化选型模式。从问题空间到解空间，对运动特性和功能质量采用不同的映射方式，即：由计算机精确推理，选择满足运动功能要求的机构，形成新解空间Ω'J；由人类根据Ω'J中机构的功能质量选择符合功能质量要求的可行机构和最优机构。解决了机构选型要求规范化描述和机构信息规范化表达的难点。根据提出的原理，较好地实现了机构选型的自动化。

SYSTEM FOR AUTOMATED SELECTION OF MECHANISMS BASED ON SET THEORY

The system for automated selection of mechanisms is divided into problem space and solution space and a mode for automated selecting mechanisms is set up, which is based on set theory and a working means of that man cooperates with computer. From problem space to solution space, different mapping ways are used for kinematical characteristic and function quality. Namely computer selects the mechanisms satisfying kinematical function request by exactly inference. These mechanisms form a new solution space Ω' J. According to the function quality of the mechanisms in Ω'J man selects the usable mechanisms tallying with the request of function quality and a optimum mechanism from Ω' J. Therefore, the difficult problem of standardized describing the request of selecting mechanisms and the information of a mechanism is solved. According to the advanced principle, the automated selection of mechanisms has good come true.