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| 一种基于CATIA的轮胎有限元建模方法 |
| A Finite Element Modeling Method For Tire Based on CATIA |
| Received:July 30, 2024 Revised:July 30, 2024 |
| DOI： |
| 中文关键词: 轮胎；CATIA；有限元；建模方法；二次开发；Abaqus |
| 英文关键词: tire；CATIA；finite element；modeling method；secondary development；Abaqus |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | RONG Yingfei* | PrinxChengShan | yfrong@prinxchengshan.com | | WANG Fangcheng | PrinxChengShan | | | REN Shiduo | PrinxChengShan | | | JING Pin | PrinxChengShan | |
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| 中文摘要: |
| 本文阐述了在CATIA中基于模板及VBA二次开发的方法,不借助CATIA网格划分模块,实现轮胎有限元建模方法。CATIA中填充面、创建点、创建直线、分割的功能,可以将轮胎线框模型离散为表达有限元的几何模型；超级复制(powercopy)、用户自定义特征(UDF)的模板功能可以将具有相同特征的几何模型打包,实现特征通用。VBA二次开发可以根据几何特征中关键对象或者参数,自动调用网格划分模板,实现建模过程的自动化。按照ABAQUS中单元定义、节点定义、面定义的规则,在CATIA中进行参数定义,通过VBA二次开发生成可用于ABAQUS计算的轮胎模型INP文件。实施过程表明,在CATIA中完全可以实现不借助网格划分模块,实现轮胎有限元建模。阐述在CATIA中基于模板及VBA二次开发的方法，不借助CATIA网格划分模块，实现轮胎有限元建模。CATIA中填充面、创建点、创建直线、分割的功能，可以将轮胎线框模型离散为表达有限元的几何模型；超级复制(Powercopy)、用户自定义特征（UDF）的模板功能可以将具有相同特征的几何模型打包，实现特征通用。VBA二次开发可以根据几何特征中关键对象或者参数，自动调用网格划分模板，实现建模过程的自动化。按照Abaqus中单元定义、节点定义、面定义的规则，在CATIA中进行参数定义，通过VBA二次开发生成可用于Abaqus计算的轮胎模型INP文件。实施过程表明，在CATIA中完全可以不借助网格划分模块，实现轮胎有限元建模。 |
| 英文摘要: |
| The method of using templates and VBA for secondary development in CATIA was elaborated，without relying on CATIA mesh partitioning modules，to achieve finite element modeling of tires.The functions of filling surfaces，creating points，creating lines，and segmenting in CATIA could discretize the line and frame model of tire into geometric model that expressed finite elements.The template functions of Powercopy and User Defined Feature（UDF） could package geometric models with the same features，achieving feature universality.VBA secondary development could automatically call grid partitioning templates based on key objects or parameters in geometric features，achieving automation of the modeling process.According to the rules of unit definition，node definition，and surface definition in Abaqus，parameter definition was carried out in CATIA，and a tire model INP file that could be used for Abaqus calculation was generated through VBA secondary development.The implementation process had shown that finite element modeling of tire could be achieved in CATIA without the use of mesh partitioning modules. |
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