| 张光亮,张士宏,刘劲松,张海渠,李长生.计算机软硬件配置对有限元计算速度和精度的影响[J].计算力学学报,2008,25(5): |
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| 计算机软硬件配置对有限元计算速度和精度的影响 |
| Effects of computer hardware and software on solution speed and accuracy of FEM |
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| DOI：10.7511/jslx20085130 |
| 中文关键词: 板材轧制 刚/粘塑性有限元法 计算机 计算速度 计算精度 |
| 英文关键词:strip rolling,RP/RVP FEM,computers,solution speed,solution accuracy |
| 基金项目:国家自然科学基金 |
| 张光亮 张士宏 刘劲松 张海渠 李长生 |
| 中国科学院金属研究所，沈阳大学，东北大学轧制技术及连轧自动化国家重点实验室 |
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| 中文摘要: |
| 针对有限元模拟,如发展板材轧制快速有限元计算对计算精度和计算速度的不断提高,研究了快速发展的计算机软硬件条件对计算速度和计算精度的影响.自行开发了板材轧制刚塑性有限元程序,选用了1台工作站和4台不同硬件配置PC机,装有三种常用操作系统windows,Linux,IRIX,分析了计算机软硬件对板材轧制有限元计算精度如轧制力和前滑,和对计算时间和迭代次数的影响.提出了有限元计算的合理计算机配置,为有限元模拟计算机配置的选择提供参考,并为板材轧制高精度的快速在线计算提供计算机软硬件平台. |
| 英文摘要: |
| The solution speed and accuracy of finite element simulation in different computers with different hardware and software have been investigated.Firstly,the rigid plastic finite element code of strip rolling was programmed by FORTRAN language.Secondly,one workstation and four Personal Computers installed with different hardware,especially CPU,and different operating systems including WINDOWS,Linux and IRIX,were tested using the finite element Code.Thirdly,the effects of computer hardware and software on the simulation results such as rolling force and forward slip were investigated.The time consumptions and the iteration times during finite element simulation were recorded and analyzed to illustrate the solution speed.Finally,the appropriate computer configuration was proposed to provide a good reference for the computer configuration of finite element simulation and a computer platform for the fast online solution of strip rolling by FEM with high precision. |
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