典型文献
MeshCNN-based BREP to CSG conversion algorithm for 3D CAD models and its application
文献摘要：
In the field of neutronics analysis,it is impera-tive to develop computer-aided modeling technology for Monte Carlo codes to address the increasing complexity of reactor core components by converting 3D CAD model(boundary representation,BREP)to MC model(construc-tive solid geometry,CSG).Separation-based conversion from BREP to CSG is widely used in computer-aided modeling MC codes because of its high efficiency,relia-bility,and easy implementation.However,the current separation-based BREP-CSG conversion is poor for pro-cessing complex CAD models,and it is necessary to divide a complex model into several simple models before applying the separation-based conversion algorithm,which is time-consuming and tedious.To avoid manual segmen-tation,this study proposed a MeshCNN-based 3D-shape segmentation algorithm to automatically separate a com-plex model.The proposed 3D-shape segmentation algo-rithm was combined with separation-based BREP-CSG conversion algorithms to directly convert complex models.The proposed algorithm was integrated into the computer-aided modeling software cosVMPT and validated using the Chinese fusion engineering testing reactor model.The results demonstrate that the MeshCNN-based BREP-CSG conversion algorithm has a better performance and higher efficiency,particularly in terms of CPU time,and the conversion result is more intuitive and consistent with the intention of the modeler.
文献关键词：
中图分类号：
作者姓名：
Yue-Tong Luo;Hua Du;Yi-Man Yan
作者机构：
Hefei University of Technology,Hefei 230009,China;University of Science and Technology of China,Hefei 230027,China;Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;State Power Investment Corporation Research Institute,National Energy Key Laboratory of Nuclear Power Software,Beijing 102209,China
文献出处：
引用格式：
[1]Yue-Tong Luo;Hua Du;Yi-Man Yan-.MeshCNN-based BREP to CSG conversion algorithm for 3D CAD models and its application)[J].核技术（英文版）,2022(06):75-88
A类：
MeshCNN,neutronics,impera
B类：
BREP,CSG,conversion,CAD,models,its,application,In,field,analysis,develop,computer,aided,modeling,technology,Monte,Carlo,codes,address,increasing,complexity,reactor,core,components,by,converting,boundary,representation,MC,construc,solid,geometry,Separation,from,widely,used,because,efficiency,relia,bility,easy,implementation,However,current,separation,poor,cessing,necessary,divide,into,several,simple,before,applying,which,consuming,tedious,To,avoid,manual,this,study,proposed,shape,segmentation,automatically,separate,was,combined,algorithms,directly,integrated,software,cosVMPT,validated,using,Chinese,fusion,engineering,testing,results,demonstrate,that,has,better,performance,higher,particularly,terms,CPU,more,intuitive,consistent,intention,modeler
AB值：
0.461653
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