面向制造的飞机钣金零件多态模型

Manufacturing-oriented Multi-state Model for Aircraft Sheet Metal Parts

针对飞机钣金零件数字化制造过程中零件信息定义问题,对多态模型作进一步研究,建立了基于状态、特征、要素和数据4个层次的模型结构,分析了模型的内容和组元关系,结合实例给出了模型各个状态的定义顺序,说明了模型的实际应用。工艺设计、工艺装备设计等应用系统可以直接引用模型的状态信息,实现飞机钣金制造过程的数字量传递和智能化决策。

In order to define the intermediate product information on the digital manufacturing of aircraft sheet metal parts, the manufacturing-oriented multi-state model for sheet metal part （MOSS） is further described. The model structure is built on the basis of the hierarchies of state, feature, element and data （SFED）. The hierarchy represents its con：tent and relationship among its components. The definition order of the model states is discussed in an example. The model is applied to the manufacturing of sheet metal part. The explanation of the application shows that the state information can be integrated with the systems of process planning and tool design, and the model provides a foundation for digital and intelligent manufacturing of aircraft sheet metal parts.