Image processing based three-dimensional model reconstruction for cross-platform numerical simulation  

作　　者：Yu-cheng Sun Yu-hang Huang Na Li Xiao Han Ai-long Jiang Jin-wu Kang Ji-wu Wang Hai-liang Yu 

机构地区：[1]State Key Laboratory of Engine Reliability,Weichai Power Co.,Ltd.,Weifang 261061,Shandong,China [2]School of Mechanical Engineering,Central South University,Changsha 41000,China [3]School of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing 100044,China [4]Key Laboratory for Advanced Materials Processing Technology,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China

出　　处：《China Foundry》2023年第2期139-147,共9页中国铸造（英文版）

基　　金：funded by National Key R&D Program of China(No.2021YFB3401200);the National Natural Science Foundation of China(No.51875308);the Beijing Nature Sciences Fund-Haidian Originality Cooperation Project(L212002).

摘　　要：Numerical simulation is the most powerful computational and analysis tool for a large variety of engineering and physical problems.For a complex problem relating to multi-field,multi-process and multi-scale,different computing tools have to be developed so as to solve particular fields at different scales and for different processes.Therefore,the integration of different types of software is inevitable.However,it is difficult to perform the transfer of the meshes and simulated results among software packages because of the lack of shared data formats or encrypted data formats.An image processing based method for three-dimensional model reconstruction for numerical simulation was proposed,which presents a solution to the integration problem by a series of slice or projection images obtained by the post-processing modules of the numerical simulation software.By means of mapping image pixels to meshes of either finite difference or finite element models,the geometry contour can be extracted to export the stereolithography model.The values of results,represented by color,can be deduced and assigned to the meshes.All the models with data can be directly or indirectly integrated into other software as a continued or new numerical simulation.The three-dimensional reconstruction method has been validated in numerical simulation of castings and case studies were provided in this study.

关 键 词：cross-platform numerical simulation 3D model reconstruction image processing SLICE 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]