CAJ | 학술논문

为了简便有效地表示工艺知识,提高工艺决策的自动化程度和灵活性,文章提出了一种融合规则的典型工艺表示与工艺决策方法.该方法将与典型工艺相关的信息分为不变信息和可变信息,不变信息基于统一的典型工艺信息模型进行表示,而可变信息以产生式规则形式表示,并嵌入到典型工艺中.由于每个典型工艺都有与之密切相关的一套独立规则,规则的针对性很强,所以规则的总结、形成容易,便于实现工艺决策的自动化.文中以飞机结构件的数控加工工艺为例,对融合规则的典型工艺的表示、基于制造特征的产生式规则分类和工艺决策算法进行了详细讨论.该方法已在某飞机制造企业的CAPP系统中进行了实际应用,实现了工艺决策的自动化.应用表明这种工艺知识表示及其决策方法简单有效,规则维护扩充方便.
위료간편유효지표시공예지식,제고공예결책적자동화정도화령활성,문장제출료일충융합규칙적전형공예표시여공예결책방법.해방법장여전형공예상관적신식분위불변신식화가변신식,불변신식기우통일적전형공예신식모형진행표시,이가변신식이산생식규칙형식표시,병감입도전형공예중.유우매개전형공예도유여지밀절상관적일투독립규칙,규칙적침대성흔강,소이규칙적총결、형성용역,편우실현공예결책적자동화.문중이비궤결구건적수공가공공예위례,대융합규칙적전형공예적표시、기우제조특정적산생식규칙분류화공예결책산법진행료상세토론.해방법이재모비궤제조기업적CAPP계통중진행료실제응용,실현료공예결책적자동화.응용표명저충공예지식표시급기결책방법간단유효,규칙유호확충방편.
Aim. Chinese researchers previously explored the above mentioned topic in Refs. 2, 4 and 5 but, in our opinion, their results are not useful in so far as practical applications are concerned. Our exploration, we believe, has made some progress in this respect; furthermore, the results of our exploration have been utilized with some success in the CAPP (computer aided process planning) system of a Chinese aircraft manufacturing enterprise. Sections 1, 2 and 3 of the full paper explore the rule fused technology for typical processes representation. Their core consists of: (1)a typical process is divided into variable information and invariable information; the invariable information is represented by the uniform model of the typical process, while the variable information is represented in the form of production rules which are embedded into the typical process; (2) because each typical process has a set of independent rules and the rules are closely related to the typical process, it is easy to define the rules and to automatically realize process decision making based on the rules. Section 4 explores the rule fused technology for automatic process decision and, taking as example the typical processes of groups of aircraft structure parts, discusses the automatic process decisions in some detail.