基于HTCPN的型号产品协同设计工作流模型研究

Study of workflow model for collaborative design of specified type-product based on HTCPN

型号产品协同设计工作流建模是协同设计过程管理的关键环节.针对型号产品协同设计的工作流模型特点,从项目粒度、开发周期和并行度三方面分析,建立了一个在空间上三维分布的工作流模型.分析了Petri网建模方法的不足,采用扩充了定义的HTCPN对型号产品机翼协同设计的工作流模型进行建模和仿真,并从可达性、死锁和任务冲突等性能方面分析了建模的正确性.最后通过在协同设计系统中的应用,表明该工作流模型是正确可行的.

The workflow modeling of collaborative design for specified type-product is the key of process management for collaborative design. By analyzing the features of workflow model for collaborative design of specified type-product from the project size,development cycles and the degree of parallelism,a workflow model of three-dimensional distribution in space was established. Then,through the analysis of the deficiencies of the Petri Net,the workflow model was modeled and simulated by using the expanded hybrid timed colored Petri net （HTCPN） and the model was also validated from the reachability,deadlock,task conflict and so on. Finally,an application example in collaborative design system shows that the workflow model is correct and feasible.