基于CATIA/CAA的轮胎花纹设计及自动节距排列

基于CATIA参数化建模及CAA二次开发,介绍一种花纹设计方法。花纹开发主要包括单节距花纹模板制作和整周拼接两部分。单节距花纹模板制作包含2D线框、3D曲面及3D实体3个阶段,利用CATIA知识工程及三维建模技术,实现以规格为主要发布参数的模板封装。利用CAA编程技术,调用单节距花纹模板,快速实现了轮胎整周花纹的拼接,可缩短轮胎开发设计周期、降低开发成本、提高设计自动化水平。

Design and Automatic Pitch Arrangement of Tire Pattern Based on CATIA/CAA

Based on CATIA parametric modeling and CAA secondary programming,a pattern design method was introduced. The pattern development mainly included two parts:single pitch pattern template design and pitch integration. The production of single-pitch pattern template included three stages of 2 D line-frame,3 D surface and 3 D solid. Using CATIA knowledge engineering and 3 D modeling technology,the pattern template was finished and published with specification parameters. Using CAA programming technology,the pitch integration was quickly obtained with the single pitch pattern template,which could shorten the tire development and design cycle,reduce the development cost,and improve the level of design automation.