Triangular Mesh Boolean Operation Method for Finite Element Analysis

Authors

Yufei Guo, 1.X Lab, The Second Academy of China Aerospace Science and Industry Corporation, Beijing 100854, China;Follow
Kang Zhao, 2.Sichuan Aerospace Chuannan Initiating Explosive Technology Limited, Luzhou 646000, China;
Yongqing Hai, 3.Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, China;

Abstract

Abstract: To shorten the cycle of finite element analysis (FEA), an adaptive triangular mesh Boolean operation method for finite element analysis is proposed. The ADT (alternating digital tree) data structure is applied to the intersection calculation of triangular meshes, which improves the efficiency of the intersection calculation of Boolean operations. A sphere packing algorithm and a node addition/deletion algorithm are used to remesh some remeshing regions, which ensures the efficiency of the method and the high-quality of remeshed meshes. An improved octree background grid is used to record and smooth the size field, which can generate size-adaptive meshes. The size field is used to reasonably control remeshing regions, which ensures the efficiency and mesh quality of the method. Results show that the proposed method can efficiently generate meshes that meet the needs of FEA.

Recommended Citation

Guo, Yufei; Zhao, Kang; and Hai, Yongqing (2022) "Triangular Mesh Boolean Operation Method for Finite Element Analysis," Journal of System Simulation: Vol. 34: Iss. 5, Article 7.
DOI: 10.16182/j.issn1004731x.joss.20-0957
Available at: https://dc-china-simulation.researchcommons.org/journal/vol34/iss5/7

First Page

1003

Revised Date

2020-12-22

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.20-0957

Last Page

1014

CLC

TP391.9

Recommended Citation

Yufei Guo, Kang Zhao, Yongqing Hai. Triangular Mesh Boolean Operation Method for Finite Element Analysis[J]. Journal of System Simulation, 2022, 34(5): 1003-1014.

DOI

10.16182/j.issn1004731x.joss.20-0957