基于稀疏存储的有限元结构分析高效缩聚并行计算方法
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家高技术研究发展计划(863计划)资助项目(2012AA01A307)和国家自然科学基金资助项目(11272214、51475287)


Efficient Condensation Parallel Computing Method for Finite Element Structural Analysis Based on Sparse Storage Scheme
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    基于稀疏存储技术和直接稀疏求解器提出了一种有限元结构分析高效缩聚并行计算方法。该方法将缩聚过程转换为一系列线性方程组的求解过程,并通过直接稀疏求解器进行求解。它能够避免传统变带宽格式缩聚并行计算方法对带宽内大量零元素的存储和运算,从而大幅度节省内存空间和有效减少计算量。最后通过发动机曲轴的有限元数值仿真实验对算法的有效性进行了验证。结果表明:相对传统变带宽格式缩聚并行计算方法,稀疏存储格式缩聚并行计算方法能够大幅度节省内存空间和有效提高计算效率;各子区域规模越大,该方法对内存空间的节省和计算效率的提高效果就越明显。

    Abstract:

    An efficient condensation parallel computing method for finite element structural analysis was proposed based on the sparse storage techniques and direct sparse solvers. In the proposed method, the process of condensation was converted to the process of solving a series of linear equations, and then the linear equations were solved with a direct sparse solver. It can avoid the storage and computation of many zero elements within the bandwidth in the traditional parallel computing method with variable bandwidth format condensation. Therefore, the memory space can be greatly saved and the amount of computation can be effectively reduced. Finally, the experiment of the finite element numerical simulation for an engine crankshaft was used to validate the proposed method. Test results showed that, compared with the conventional parallel computing method with variable bandwidth format condensations, the proposed parallel computing approach with sparse storage format condensation could considerably save memory space and significantly improve computational efficiency. The larger the size of each subdomain, the effect of the proposed method on aspects of saving memory space and improving computational efficiency was more obvious. The proposed method can be applied to many industrial areas such as aerospace, automobile, energy, civil and architecture to significantly improve the efficiency of engineering design and analysis.

    参考文献
    相似文献
    引证文献
引用本文

苗新强,金先龙,丁峻宏.基于稀疏存储的有限元结构分析高效缩聚并行计算方法[J].农业机械学报,2015,46(4):338-343. Miao Xinqiang, Jin Xianlong, Ding Junhong. Efficient Condensation Parallel Computing Method for Finite Element Structural Analysis Based on Sparse Storage Scheme[J]. Transactions of the Chinese Society for Agricultural Machinery,2015,46(4):338-343.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2014-05-03
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2015-04-10
  • 出版日期: 2015-04-10