3D Parametric Modeling Method and Application Based on CATIA

Parametric design is the core technology of modern CAD software.Parametric design tool allows designers free from a host of complicated design,calculation,drawing to improve the design efficiency.It can be adopted before the actual manufacturing of physical prototype and makes modification of design easily,shortens the product development cycle,reduces products cost,enhances the market competitiveness.In this paper,based on the catia 3d parametric modeling methods and techniques was studied,and expounded the basic 3d parametric modeling method and general steps.Some modem design methods of four-bar linkage mechanism,such as parametric design,visualized design,and virtual assembly were presented using CATIA V5 software.At the same time,the clash check and kinematic simulation were introduced.Especially,one-model and multi-type design method of four-bar linkage mechanism by revising parameters of the components in real time for meeting design requires was proposed in detail.Thus,the design intent call realize in visualization and the design quality and efficiency can be improved in this method.