机械产品参数化特征造型

The Parametric Feature Modeling for Mechanical Products

参数化特征造型是一种基本符合设计人员思维的设计方法 ,较好地体现了从设计意图到细节设计和建模这一过程。特征是设计的构造块 ,包括象孔、倒圆和倒角这样的工业标准对象和象拉伸体、旋转体、扫描体等设计对象 ,本文对这些特征的参数化定义和约束以及约束的形式 ,造型的过程进行了深入的分析。

The Parametric feature modeling is a design method which basically accords to the thought of the designers. It preferably reflects the process from the designing intention to the detail designing and modeling. Features are the building blocks of design, which includes industry standard objects like holes, fillets and chamfers and design objects such as extruded, revolved and swept objects. The parametric definition and constraints of these features, and the form of the constraints and modeling process are thoroughly analyzed in this paper.