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计算机系统应用英文版:2012,21(10):66-70,104

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面向CAE 的STL 模型三角网格均匀化

陈志杨¹, 丁豪¹, 张引²

(1.浙江工业大学计算机科学与技术学院, 杭州 310023;2.浙江大学计算机学院, 杭州 310012)

Re-Shape of Triangular of STL Model for CAE Applications

CHEN Zhi-Yang¹, DING Hao¹, ZHANG Yin²

(1.College of Computer Science and Technology, Zhejiang University of Technology, Hangzhou 310023, China;2.College of Computer Science and Technology, Zhejiang University, Hangzhou 310012, China)

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Received:February 28, 2012 Revised:April 08, 2012

中文摘要: 提出了一种基于STL 数据的有限元网格再生成算法, 该算法主要用于CAE 工程分析. 鉴于CAD 模型的网格特征形态不匀称, 分布不均匀的特点, 对CAD 模型进行网格再生成, 使其符合CAE 工程分析的要求. 算法主要由拓扑建立、网格聚类、网格重采样和三角化四部分组成. 实验表明该算法能够有效降低三角网格最长边和最短边的比值, 使得模型的网格特征形态趋于均匀.

中文关键词: 三角网格均匀化有限元网格生成 STL 模型 CAD

Abstract:The paper presents an algorithm of the Finite Element mesh generation based on STL Data. The algorithm is mainly used for CAE engineering analysis. Considering the bad shape of STL model from CAD system, we need re-meshing the STL model so that the shape of triangular is better use for CAE analysis. The algorithm includes 4 steps: topologic creation, mesh clustering, mesh re-sampling, triangulation. The results show that our algorithm can reduce the ratio of the longest edge and the shortest edge of triangle mesh effectively to make shape of triangular is in uniform.

keywords: uniform of triangular mesh CAE grid STL model CAD

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基金项目:国家高技术研究发展计划(863)(2007AA04Z1A5)

Author Name	Affiliation
CHEN Zhi-Yang	College of Computer Science and Technology, Zhejiang University of Technology, Hangzhou 310023, China
DING Hao	College of Computer Science and Technology, Zhejiang University of Technology, Hangzhou 310023, China
ZHANG Yin	College of Computer Science and Technology, Zhejiang University, Hangzhou 310012, China

Author Name	Affiliation
CHEN Zhi-Yang	College of Computer Science and Technology, Zhejiang University of Technology, Hangzhou 310023, China
DING Hao	College of Computer Science and Technology, Zhejiang University of Technology, Hangzhou 310023, China
ZHANG Yin	College of Computer Science and Technology, Zhejiang University, Hangzhou 310012, China

引用文本：
陈志杨,丁豪,张引.面向CAE 的STL 模型三角网格均匀化.计算机系统应用,2012,21(10):66-70,104
CHEN Zhi-Yang,DING Hao,ZHANG Yin.Re-Shape of Triangular of STL Model for CAE Applications.COMPUTER SYSTEMS APPLICATIONS,2012,21(10):66-70,104