压力容器2025，Vol.42Issue(3)：54-61,8.DOI:10.3969/j.issn.1001-4837.2025.03.007
单元类型对PCHE有限元计算的影响及优化策略研究
Research on the influence of element type on finite element calculation of PCHE and optimization strategies
摘要
Abstract
This study aims to investigate the influence of different element types on the finite element calculation results of printed circuit heat exchangers(PCHE)and propose optimization strategies to improve computational accuracy and efficiency.Stress analysis was conducted on the PCHE channel box nozzle-cylinder structure using Ansys Workbench software,focusing on the effects of element types,element technologies,and mesh density on membrane stress.The computational reliability was validated through analytical methods,with deviations of cylindrical and nozzle membrane stresses being<2.14%and<8.03%,respectively.The methodology was further applied to the PCHE core plate structure.The results indicate that the SOLID185 linear enhanced strain element and SOLID186 quadratic reduced integration element yield comparable accuracy.However,SOLID186 demonstrates higher computational efficiency for meshes with≤4 layers,while SOLID185 exhibits lower resource consumption for meshes with≥4 layers.This research provides theoretical support for the refined design and engineering application of PCHEs.关键词
印刷电路板式换热器/有限元分析/单元类型/网格密度/优化策略Key words
printed circuit heat exchangers(PCHE)/finite element analysis/element types/mesh density/optimization strategy分类
机械制造引用本文复制引用
王锡丁,曾东,李培跃,付文,史新鑫,杨志锋..单元类型对PCHE有限元计算的影响及优化策略研究[J].压力容器,2025,42(3):54-61,8.基金项目
工信部LNG再气化模块用印刷电路板式换热器研制项目(CBG3N21-2-4) （CBG3N21-2-4）
