一个基于图基的参数化设计方法

A PARAMETRIC DESIGN METHOD FOR GRAPH\|BASIS BASED PRODUCT MODELING

文中提出一个基于图基高层次图素的产品参数化设计方法，对图基及图基骨架的概念和定义作了阐述，讨论了图基的性质及其分类，提出了一系列图基构造算子，给出了一个基于图基骨架自组织的算法和信息模型，得出了一个利用尺寸约束树把不同图基线素之间的尺寸约束向其中某一图基内部尺寸约束的转换方法，并在此基础上给出一个基于图基的参数化设计算法．

Here presented is a new approach to parametric design for graph\|basis\|based product modeling. The concept and definition of graph\|basis and skeleton are described. The classes of graph\|basis and their proposition are discussed. A series of graph\|basis construct operators, an information model, and an algorithm which is based on the graph\|basis self\|organization are proposed. A method is also proposed, which can turn the dimension constraints between two different graph\|basis inner elements into one of the graph\|basis inner elements dimension constraints. On this basis, a parametric design algorithm is obtained. By using this approach, the product can be designed effectively.