基于特征的工艺过程数据模型研究与应用

针对工艺知识的管理,尤其是工艺设计中的经验性知识的继承问题,对传统工艺信息模型进行扩充,提出了包含工艺设计经验性知识的工艺过程数据模型.创建过程中,将工艺设计知识划分为:设计需求、设计任务、设计方案三元组,并将制造特征作为总结工艺知识的一个层次,为灵活地继承工艺知识创造了条件.应用该数据模型,开发了工艺过程管理原型系统,实现了工艺知识的获取、评价和重用.

Research and Application on the Data Model of Process Planning

For the management of knowledge of process plan, especial the experience in process planning, this paper put forward the data model of the process including the experience of the processor. It divides the process plan to three parts: restriction, mission, and result while design the model. The data model sets the process planning of feature as basic unit, and contains experience of the processor. This data model is used in the original management system of process planning, evaluation and reuse of the knowledge of the process planning.