A assembly modeling method based on assembly feature Graph-Tree model

Assembly model plays a important role between conceptual design and detail design. A novel model, in which a structural Graph-Tree has been constituted by assembly feature as a basic unit, is presented. Furthermore, a notation system has been presented for representation of the model. Based on the proposal feature mapping arithmetic, the assembly model is been built easily. Mapping between functions and structures has been realized easily and the instance of closed loop in constrain resolve has been avoided successfully. Finally, the integration of conceptual design and detail design has been well realized.