零件形状特征图树分解原理及应用

Principle and Applications of Tree resolution for Spares Shape's Characteristics Graph

如何用特征构造零件的信息模型,是特征建模中至今悬而未决的同题,本文作者从零件形状特征关系图入手,研究了零件形状特征关系图的一些构造规律,首次提出了零件形状特征图树分解原理,并比较成功地运用到了回转类零件的特征建模和相应的基于特征的CAD系统开发之中,为用形状特征构造零件信息模型以及开发基于特征的CAD系统提供了理论依据和建模思路。

Starting off with the characteristics relation graph of spares' shape, this paper de- scribes the investigation into the characteristics and law of the relation graph of spares' shape, presents the tree resolution principle of the relation graph of spinciple to model the rotary spares and relative development of CAD system. This work provides the theoretic basis for modeling the spares informatiom and developing CAD system based on the characteristics.