中国机械工程 ›› 2010, Vol. 21 ›› Issue (10): 1222-1227.

• 机械基础工程 • 上一篇    下一篇

基于GPU的冲压成形快速计算方法

王建华1;李光耀1;李胜2;孙光永1;伍广1
  

  1. 1.湖南大学汽车车身先进设计制造国家重点实验室,长沙,410083
    2.北京大学,北京,100871
  • 出版日期:2010-05-25 发布日期:2010-06-02
  • 基金资助:
    国家重点基础研究发展计划资助项目(2010CB328005);教育部长江学者创新团队和发展计划资助项目(531105050037);国家自然科学基金资助项目(60833007);湖南大学汽车车身先进设计制造国家重点实验室自主课题项目(60870005) 
    National Program on Key Basic Research Project (973 Program)(No. 2010CB328005);
    Supported by Program for Changjiang Scholars and Innovative Research Team in University(No. 531105050037);
    National Natural Science Foundation of China(No. 60833007)

Rapid Simulation of Sheet Forming Based on GPU

Wang Jianhua1;Li Guangyao1;Li Sheng2;Sun Yongguang1;Wu Guang1
  

  1. 1.State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Hunan University,Changsha,410083
    2.Peking University,Beijing,100871
  • Online:2010-05-25 Published:2010-06-02
  • Supported by:
     
    National Program on Key Basic Research Project (973 Program)(No. 2010CB328005);
    Supported by Program for Changjiang Scholars and Innovative Research Team in University(No. 531105050037);
    National Natural Science Foundation of China(No. 60833007)

摘要:

为了解决计算时间过长这一制约有限元计算在实际工程中应用的瓶颈问题,提出了一种利用现有的图形处理器(GPU)和可编程序的着色渲染语言(CG)加速有限元计算的方法。该方法按照GPU的特点设计出了单元信息表示方法,实现了单元内力计算的同步,克服了以往利用CPU进行有限元计算时程序并行程度不高的缺点。研究结果表明,针对板料成形问题的仿真计算效率提高了近10倍,大大缩短了计算所需的时间,对解决实际工程问题具有应用价值。

关键词:

Abstract:

In order to eliminate the lasting calculation bottleneck on application of finite element,we proposed a new method to accelerate the computation of FEM by using the existing modern GPU and programmable shading tool. In accordance with the features of GPU,we devised a method representing unit information and initial conditions,which converted all the unit calculations into rendering process.In this way,the simulation work of all the unit calculation of the internal force will be solved,and the shortcomings of lowly parallel level appeared ever before when it run in a single computer can be overcome.Studies show that this mean can improve efficiency and shorten calculating hours greatly.Aimed at the elasticity problem of large number cells in a sheet metal,the GPU parallel simulation calculation rate will be faster than
that by using the CPU's,as well as it has useful and practical value in solving the project problems.

Key words: finite element, cell, node, parallel, graphic processing unit(GPU)

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