基于一种新知识库结构的电机设计专家系统推理机

推理机与知识库的 表达形式密切相关，现有电机设计系统存在规则表达形式不直观的问题，影响了知识的形象，使用和维护，为解决这一问题，文章首先定位了一种直观，自然的规则表达形式，给出了相应的知识库结构和完善的语法规则，然后开发了相应的推理机；最后将其应用于永磁直流电动机设计专家系统，应用效果证明是正确的，有效。

The Inference Mechanism Basing on A New Kind of Knowledge-base Structure in Electrical Machine Design Expert System

The inference mechanism is related to the structure of knowledge base,and the expression form of knowledge.The expression form of rules in existing electrical machine design is not easy to read or use,which affects the utilization of knowledge and maintenance of knowledge-base.To overcome this problem,a kind of expression form of rules that is easy to read and use,the structure of knowledge-base and corresponding grammar are given in this paper.Secondly,the corresponding inference mechanism is developed.Finally,the application to the design expert system of permanent magnet direct current motor verifies the validity and correctness of the work in this paper.