基于VDEVS的离散制造车间虚拟实体行为模型描述方法  

Discrete manufacturing workshop virtual entity behavioral model description method based on VDEVS

作　　者：刘怀兰[1] 岳鹏 閤辰皓 赵文杰 LIU Huailan;YUE Peng;GE Chenhao;ZHAO Wenjie(School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;Wuhan Golden Vision Industry Co. Ltd., Wuhan 430070, China)

机构地区：[1]华中科技大学,机械工程学院,湖北武汉430074 [2]武汉高德信息产业有限公司,湖北武汉430070

出　　处：《计算机集成制造系统》2021年第10期2950-2960,共11页Computer Integrated Manufacturing Systems

基　　金：国家重点研发计划资助项目(2018YFB1701003)。

摘　　要：虚拟实体是数字孪生五维模型中重要的组成部分,其行为模型描述了物理实体在外部环境与内部运行机制作用下的实时响应及行为。针对离散制造车间数字孪生虚拟实体行为模型缺乏统一描述与精确定义的难题,提出一种使用基于值的离散事件系统规范(VDEVS)对行为模型进行描述的方法。在原有数字孪生五维模型基础上定义了数字孪生车间虚拟实体分层模型,实现了其与数字孪生车间物理实体的一一映射。通过对传统离散事件系统仿真规范(DEVS)进行扩展提出了VDEVS,从而更加精确地描述离散制造车间复杂系统级、系统级、单元级虚拟实体的行为。最后,针对某加工单元,利用基于VDEVS的方法对其行为模型进行了描述。Virtual entity is an important part of digital twin five-dimensional model,and its behavior model describes the real-time response and behavior of physical entity under the action of external environment as well as internal operation mechanism.To solve the problem of lacking uniform description and precise definition of virtual entity behavior model in discrete manufacturing workshop,a behavior model description method based on Value-based Discrete Event System Specification(VDEVS)was proposed.On the basis of the original digital twin five-dimension model,the hierarchical virtual entity model of discrete manufacturing workshop was defined,and the one-to-one mapping between this model and the physical entity of digital twin workshop was realized.By extending the traditional Discrete Event System Simulation specification(DEVS),VDEVS was more accurately describe the behavior of complex system-level,system-level and cell-level virtual entities in discrete manufacturing workshops.For one machining unit,VDEVS was used to describe its behavior model.

关 键 词：数字孪生车间 虚拟实体 基于值的离散事件系统规范 行为模型 离散制造 

分 类 号：TB49[一般工业技术]