工程信息结构的语义模型  

A SEMANTIC MODEL OF ENGINEERING INFORMATION STRUCTURE

作　　者：曹化工[1] 秦友淑[1] 

机构地区：[1]武汉华中理工大学计算机科学与工程系

出　　处：《计算机辅助设计与图形学学报》1996年第1期42-47,共6页Journal of Computer-Aided Design & Computer Graphics

基　　金："863"高技术计划自动化领域CIMS主题资助

摘　　要：本文提出一种新的语义模型，该模型能够支持ＣＩＭ工程中相互联系的各类数据（如机械工程中的产品因、工艺规程、工艺装备等）的结构化管理。首先定义了问题范围内的对象与对象类；在研究对象间联系的基础上建立起对象、对象类之间的语义关系；然后定义了作用于语义关系和对象上的操作，从而得出一种面向工程信息结构的语义模型。模型描述了一个项目（对象类、语义关系和操作的集合）的层次结构。通过在共享对象上建立等价语义关系，能够将项目的层次结构图转化为项目树，进而可用树结构实现对ＣＩＭ工程中产品及各类相关数据的结构化管理。This paper presents a new semantic model which can support the structural management for various kinds of relative data (for example,product graphs,processspecifications, technological equipments and etc. ) in CIM. Following the definitions ofobject and object class in the problem filed,this paper establishes semantic relationsbetween objects on the basis of researching the connections between objects and thengives the difinition of operations upon objects and semantic relations so that a semanticmodel of engineering information structure-oriented is obtained.The model presents the hierarchical structure of a project (a set of object classes,semantic relations and operations).The structure graph of a project can be able totransformed into a tree by establishing equivalent relations to shared objects, further aproduct and their interrelated data in CIM engineering can be managed structurally bythe way of a tree.

关 键 词：CIM 工程信息 结构化管理 语义模型 

分 类 号：TH166[机械工程—机械制造及自动化]