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.
出处
《计算机集成制造系统》
EI
CSCD
北大核心
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)~~
关键词
关系对象
PETRI网
装配系统
建模
飞机制造
relation-based object
Petri nets
assembly system
modeling
aircraft manufacturing
作者简介
作者简介:张杰(1979-),男,浙江诸暨人,博士后,研究方向:装配系统分析与规划、装配现场控翩,E—mail:npu—zj@263.net;
李原(1964-),女,陕西西安人,教授,研究方向:先进装配与连接、装配现场控制;
张开富(1977-),男,四川安岳人,副教授,研究方向:飞机柔性装配系统、先进装配工艺;
余剑锋(1974-),男,湖北十堰人,副教授,研究方向:先进装配与连接、装配现场控制。