【摘要】 分析了虚拟柔性加工单元信息管理系统的需求 ,设计了虚拟单元信息管理系统的功能结构 .根据系统开发使用的关系数据库管理系统 ,建立了柔性加工单元扩展实体 -联系数据库模型和关系数据库 .更多还原

【Abstract】 Virtual flexible machining cell is the kernel of virtual manufacturing system. The function of controlling and cooperating the material handling of virtual manufacturing cell is implemented in database management system. The requirement of the system is analyzed and the function is designed. The extended entity relation diagram and the relation data tables of the system are constructed based on RDBMS.更多还原