面向轮胎3D花纹的语义建模方法

摘要/Abstract

摘要： 针对以几何特征为主导的建模方式会造成轮胎3D花纹模型创建操作繁琐、设计信息表达分散且不完备的问题，提出了以语义为主导的3D建模方法。该方法是在花纹设计的应用理论及实用技术探讨和研究的基础上，将理论设计中的花纹沟、装饰品及交汇特征的结构抽象分解得到轮胎花纹语义单元，从而构建花纹语义模型库和结构设计知识库。在此基础上引入轮胎节距信息，实现了轮胎花纹从概念设计到装配设计的层次化、系统化、形式化表达。最后，以CATIA/CAA为开发平台引入基于特征的建模技术,开发出语义级轮胎3D花纹设计系统。实例分析结果表明，该系统适用于多种类型的轮胎花纹建模，提高了CAD技术对设计信息表述的支持能力，增强了产品建模的自动化水平,有效地减少了设计人员的重复性工作，缩短了研发周期。

关键词: 轮胎花纹;工程语义;语义单元, 计算机辅助设计

Abstract: Aiming at fussy operations and expressions of design information scattered of 3D tread patterns modeling, which caused by the way that dominated by geometric features, a semantic-driven 3D modeling approach was proposed herein. The structures of the groove features, ornament features and intersection features in the theoretical design were decomposed abstractly to obtain the semantic units of the tire pattern based on discussion and research on the application theory and practical technology of pattern design. Then,the hierarchical, systematic, formal expressions of tire tread pattern from conceptual design to assembly design were realized by the introduction to tire pitch information.Finally, feature-based modeling technology was introduced, making CATIA / CAA as the development platform to develop a semantic level 3D tire patterns design system. The example analysis results show that the system is applicable to a variety of types of tire patterns modeling, enhancing the ability of the CAD technology design of information description and improving the automation level of product modeling, thus effectively reducing the repetitive work of designers and shortening the development cycle.

Key words: tread pattern, engineering semantics, semantic element, CAD

中图分类号:

TP391.7

董玉德, 宋忠辉, 张荣团, 白苏诚, 张方亮, 刘彦超. 面向轮胎3D花纹的语义建模方法[J]. 中国机械工程.

Dong Yude, Song Zhonghui, Zhang Rongtuan, Bai Sucheng, Zhang Fangliang, Liu Yanchao. Semantics Modeling for 3D Tread Patterns-oriented[J]. China Mechanical Engineering.

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