基于CATIACAA的车身主断面参数测量工具开发.pdfVIP

Computer Engineering and Applications 计算机工程与应用 2014 ，50（20 ） 249 基于CATIA/CAA 的车身主断面参数测量工具开发 1，2 1 1 2 胡斯博 ，丁 祎 ，朱德霞 ，胡 平 1，2 1 1 2 HU Sibo , DING Yi , ZHU Dexia , HU Ping 1.北京汽车研究总院有限公司 车身部，北京 100021 2.大连理工大学 汽车工程学院，辽宁 大连 116023 1.Department of Body Engineering, Beijing Automotive Technology Center, Beijing 100021, China 2.School of Automotive Engineering, Dalian University of Technology, Dalian, Liaoning 116023, China HU Sibo, DING Yi, ZHU Dexia, et al. Development of vehicle master section parameter measure tool based on CATIA\CAA. Computer Engineering and Applications, 2014, 50 （20 ）：249-253. Abstract ：During the period of vehicle concept design, the evaluation of master section performance mostly depends on reference vehicle data and the experience of structure design engineers. In this paper, it studies the influence of master section parameters on the vehicle body performance and sets up parameterized model of master section. A Master Section Mea- sure Tool （MSMT ）is developed based on CATIA/CAA, which improves design efficiency by measuring the master sec- tion parameters according to CAD surface data. As an example, six master sections of A pillar are respectively measured by MSMT and Altair/Hypermesh. The measure results of master section measure tool are the same as the Altair/Hypermesh ’s, which approve the practicability and the veracity of this master section measure tools. Key words ：car body; master section; CATIA\CAA; section parameter; CATIA secondary development 摘 要：在汽车概念设计阶段，基本上依靠参考车型和工程师设计经验对车身主断面设计进行评估。研究了车身主 断面特性对车身性能的影响，建立了主断面参数化模型。采用CAA/C++技术进行CATIA 二次开发，实现汽车车身 主断面参数测量工具设计开发。使用该工具能够仅根据CAD 曲面数据，便快捷有效地测量出主断面的性能参数， 无需CAE 分析，缩短设计周期，提高了设计效率。并以六个车型的车身A 柱的主断面为例，采用有限元Alair/Hypermesh 和本工具进行主断面参数测量，结果基本一致，验证了该测量工具的实用性和准确性。 关键词：车身；主断面；CATIA\CAA ；截面参数；CATIA 二次开发 文献标志码：A 中图分类号：TP393