基于IDEF的车间数字孪生模型构建方法  

Construction Method of Workshop Digital Twin Model Based on IDEF

作　　者：陈瑾 高庆霖 徐磊 庄存波[1,3] CHEN Jin;GAO Qinglin;XU Lei;ZHUANG Cunbo(School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China;Beijing Spacecrafts Co.,Ltd.,Beijing 100094,China;Yangtze Delta Region Academy of Beijing Institute of Technology(Jiaxing),Jiaxing 314000,China)

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]北京卫星制造厂有限公司,北京100094 [3]北京理工大学长三角研究院(嘉兴),嘉兴314000

出　　处：《航空制造技术》2023年第21期102-116,共15页Aeronautical Manufacturing Technology

基　　金：国家重点研发计划(2020YFB1710300);国家自然科学基金(52005042);国防基础科研项目(JCKY2020203B016)。

摘　　要：车间数字孪生模型的构建过程复杂,功能模块和数据类型多样,目前缺乏以顶层设计为导向的系统性和结构化的建模分析方法,传统单一设计结构的建模方法在构建车间数字孪生模型时易出现内容重复或遗漏,难以实现车间数字孪生模型系统性的建模要求。基于车间数字孪生模型复杂性和集成化计算机辅助制造定义方法(IDEF)类表达的多样性,提出了功能建模、信息建模、过程建模和本体建模4个维度的车间数字孪生模型结构化建模分析方法。利用IDEF0,通过功能分解、功能之间关系的分类来描述车间数字孪生模型功能;利用IDEF1x描述车间数字孪生模型运行过程中的重要信息,并定义数据实体间的相互关系;利用IDEF3,以车间数字孪生模型运行过程中数据流动过程为核心准确描述车间过程变化和状态转移;在信息建模和过程建模的基础上,利用IDEF5获取车间数字孪生模型领域的概念、术语和关系,通过车间数字孪生模型运行过程本体建模采集事实和获取知识。有效地避免了单一表达形式可能只对复杂系统中某一种特征进行描述而忽略其他重要信息的问题,为提高车间数字孪生模型建模过程语义一致性、可重用性、结构化和开发自动化奠定了基础。The construction process of workshop digital twin models is complex,with diverse functional modules and data types.Currently,there is a lack of systematic and structured modeling and analysis methods guided by toplevel design.Traditional modeling methods with a single design structure are prone to content duplication or omission when constructing workshop digital twin models,making it difficult to achieve the systematic modeling requirements of workshop digital twin models.Based on the complexity of the workshop digital twin model and the diversity of IDEF method class expressions,a structured modeling and analysis method of the workshop digital twin model from four dimensions of functional modeling,information modeling,process modeling and ontology modeling is proposed.IDEF0 is used to describe the function of the digital twin model on the shop floor through functional decomposition and classification of the relationship between functions;IDEF1x is used to describe important information during the operation of the shop floor digital twin and define the interrelationships between data entities;IDEF3 is used to accurately describe the process changes and state transfers in the workshop with the data flow process during the operation of the workshop digital twin as the core;On the basis of information modeling and process modeling,IDEF5 is used to obtain concepts,terms and relationships in the field of workshop digital twins,and to collect facts and acquire knowledge through ontology modeling of the operation process of workshop digital twins.This method effectively avoids the problem that a single expression may only describe a certain feature in a complex system and ignore other important information,laying a foundation for improving the semantic consistency,reusability,structure,and automation of the workshop digital twin modeling process.

关 键 词：数字孪生 智能制造 功能建模 信息建模 过程建模 本体建模 

分 类 号：TH18[机械工程—机械制造及自动化]