基于Pro/E建模的Visual-Mesh网格划分方法
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摘要
ProCAST数值模拟是研究金属凝固过程的重要工具,为凝固过程中金属的微观组织、成分分布以及温度场变化提供了理论分析依据。网格划分的准确性决定了整个数值模拟结果是否正确。然而,对于曲面重合的实体模型,存在无法进行体网格划分的现象。本文讨论了基于Pro/E建模的Visual-Mesh网格划分过程。结果表明,利用Visual-Mesh对IGES文件进行编辑,可有效减少由于重合曲面的存在而无法进行体网格划分的问题,划分的网格在ProCAST中具有很好的识别度。
ProCAST is an important tool to study the metal solidification process.It provides a theoretical analysis for the microstructure,composition distribution and temperature field of metal during solidification.The accuracy of the meshing determines whether the numerical simulation results are correct.However,the volume meshing cannot be performed for the solid model in which the surfaces coincide.This paper discusses the Visual-Mesh meshing process based on Pro/E modeling.The results show that the editing of IGES files by Visual-Mesh can effectively reduce the problem of volume meshing due to the existence of coincident surfaces.The classified meshes have good recognition in ProCAST
ProCAST is an important tool to study the metal solidification process.It provides a theoretical analysis for the microstructure,composition distribution and temperature field of metal during solidification.The accuracy of the meshing determines whether the numerical simulation results are correct.However,the volume meshing cannot be performed for the solid model in which the surfaces coincide.This paper discusses the Visual-Mesh meshing process based on Pro/E modeling.The results show that the editing of IGES files by Visual-Mesh can effectively reduce the problem of volume meshing due to the existence of coincident surfaces.The classified meshes have good recognition in ProCAST
引文
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[7]饶磊,李小龙,胡启耀,朱炼兵.基于Pro/E预处理的Pro CAST有限元网格生成方法[J].南昌大学学报(工科版),2011,33(3):269-272.
[8]苏大为,赵玉涛,王雷刚,郑成琪.前处理软件与Pro CAST的接口连接方式[J].特种铸造及有色合金,2007,27(5):348-350.
[2]Szeliga D,Kubiak K,Ziaja W,Cygan R.Influence of silicon carbide chills on solidification process and shrinkage porosity of castings made of nickel based superalloys[J].International Journal of Cast Metals Research,2014,27(3):146-160.
[3]Matache G,Stefanescu DM,Puscasu C.Alexandrescu E.?Dendritic segregation and arm spacing in directionally solidified CMSX-4 superalloy[J].International Journal of Cast Metals Research,2016,29(5):303-316.
[4]陈仲昌,谢发勤,吴向清.Pro/E曲面建模与Mesh CAST网格划分的实现[J].铸造技术,2007,28(10):1353-1355.
[5]Huang W,Shen HM,Hu MJ,Li S.A pre-processing method of ProCAST based on Pro/E and Hyper Mesh[J].Applied Mechanics and Materials,2014(597):203-207.
[6]王宝顺,董建新,张麦仓,郑磊.Pro/E曲面建模在Pro CAST网格划分中的应用[J].铸造技术,2009,30(7):926-928.
[7]饶磊,李小龙,胡启耀,朱炼兵.基于Pro/E预处理的Pro CAST有限元网格生成方法[J].南昌大学学报(工科版),2011,33(3):269-272.
[8]苏大为,赵玉涛,王雷刚,郑成琪.前处理软件与Pro CAST的接口连接方式[J].特种铸造及有色合金,2007,27(5):348-350.