基于关系对象Petri网的飞机装配系统模型快速构建方法  

Rapid modeling method for aircraft assembly system based on relation-based object Petri nets

作　　者：张杰[1] 李原[1] 张开富[1] 余剑峰[1] 

机构地区：[1]西北工业大学现代设计与集成制造技术教育部重点实验室,陕西西安710072

出　　处：《计算机集成制造系统》2010年第6期1195-1201,共7页Computer Integrated Manufacturing Systems

基　　金：国家863/CI MS主题资助项目(2006AA04Z161);国家科技支撑计划资助项目(2006BAF01A03);陕西省科技发展计划资助项目(2007K05-02)~~

摘　　要：为支撑飞机装配系统分析与优化,提出了基于关系对象Petri网的装配系统模型快速构建方法。依据现场组织模式分析了装配作业单元分解结构,给出了装配系统关系对象Petri网的模型定义,建立了作业单元对象和关系的表示方法。以模型定义与表示为基础,阐述了装配元对象和逻辑对象模型的构建步骤与规则。采用对象简化网对模型状态空间进行压缩,并建立了基于线性不变量的模型特性验证方法。以某型飞机机翼装配单元为对象进行了实例分析,结果证明了该方法的有效性。To support aircraft assembly system analysis and optimization,a rapid modeling method of Relation-based Object Petri Nets（R-OPN）was proposed.According to the on-site organization mode,the decomposition structure of assembly jobs were analyzed,the definition of R-OPN was presented,the representation of object and relationship for assembly unit were established.Then,the construction steps and rules for assembly system modeling were explained,which included how to construct assembly meta-object and logic object.An object simplified net was used to decrease model complexity,and a linear invariant method utilized in model validation was presented.Furthermore,an example of the R-OPN model of an aircraft wing assembly was analyzed,and the result demonstrated the effectiveness of this method.

关 键 词：关系对象 PETRI网 装配系统 建模 飞机制造 

分 类 号：TH186[机械工程—机械制造及自动化]