【摘要】 在机械创新设计中 ,结构设计是一个不同抽象层次结构的演化过程 ,但目前基于特征的机械结构模型还难以适应结构演化的需要 .文中从结构抽象与演化特征出发 ,提出了面向机械创新设计的概念结构模型 ,将结构信息统一用逻辑方法在概念模型中表示 ,而装配模型、零件模型和几何模型则由概念模型产生 .该模型所具有的动态性使其既满足多抽象层次表示机械结构的需要 ,又符合设计思维的要求 .更多还原

【Abstract】 In mechanical crea tive design, structure design is an evolving process between abstract levels. Ho wever, structure evolution is not satisfied by feature-based models available. Based on the characteristics of structure abstraction and evolution, this paper presents a conceptual structure model for mechanical creative design, in which s tructure infomation is logically presented in the conceptual model, but the asse mbly model, part model and geometric model are engendered on the basis of the c onceptual model. The dynamic feature of the model satisfies both the needs of th e presentation of mechanical structure with many abstract levels and the design thinking pattern.更多还原