摘 要：针对将热控多层三维设计展开转换成二维 CAD 图纸同时展开精度小于 1 mm 的设计需求，提出了一套基于CATIA 环境下优化的几何展开复杂曲面通用算法的方法，并开发出相应的系统。首先，利用 CATIA 创成式外形设计功能的提取以及填充功能，得到天线面板一片复杂曲面；然后，利用有限元分析功能的网格划分功能将曲面三角化；最后利用开发的系统，采用优化的等面积展开几何法，将复杂曲面展开，且精度满足设计需求。
关键词：复杂曲面；展开；CATIA；等面积
DOI:10.19850/j.cnki.2096-4706.2022.15.011
中图分类号：TP391.9 文献标识码：A 文章编号：2096-4706（2022）15-0041-04
Antenna Panel Digital Flatten Modeling Technology and its Application
GAN Zhong¹, PU Lihua², LING Zihao¹, SHI Wangxing¹, MA Boyu¹
(1.School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China;2. Xi'an Branch of China Academy of Space Technology, Xi'an 710000, China)
Abstract: Aiming at the design requirements of flattening and converting the thermal control multi-layer 3D design development into 2D CAD drawings and the flatten accuracy is less than 1 mm at the same time, this paper proposes a method of geometric flatten complex surface general algorithm based on CATIA environment optimization and develops the corresponding system. Firstly, a complex curved surface of the antenna panel is obtained by using the extraction and filling functions of CATIA generative type of shape design function. Then, the curved surface is triangulated by using the meshing function of finite element analysis function. Finally, it uses the developed system and the optimized equal area expansion geometry method to flatten the complex curved surface, and the accuracy meets the design requirements.
Keywords: complex curved surface; flatten; CATIA; equal area
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作者简介：凌子昊（1998.07—），男，汉族，黑龙江哈尔滨人，硕士在读，研究方向：机械、数字化测量。