• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 15 Issue 6
Dec.  2002
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Article Contents
YANG Jie, CHEN Qiu. A Monte-Carlo Stochastic FEM Based on Conjugate Gradients Method[J]. Journal of Southwest Jiaotong University, 2002, 15(6): 647-650.
Citation: YANG Jie, CHEN Qiu. A Monte-Carlo Stochastic FEM Based on Conjugate Gradients Method[J]. Journal of Southwest Jiaotong University, 2002, 15(6): 647-650.

A Monte-Carlo Stochastic FEM Based on Conjugate Gradients Method

  • Publish Date: 25 Dec 2002
  • An improved Monte-Carlo stochastic FEM based on polynomial preconditioners is established through introduction of the conjugate gradients method into the traditional Monte-Carlo stochastic FEM. In the improved FEM, a certain characteristic sample is obtained first; then, using it as a preconditioner, the other samples are solved by polynomial preconditioners for conjugate gradients method. A comparison between the improved Monte-Carlo stochastic FEM and the Neumann expansion-based Monte-Carlo stochastic FEM shows that the latter is a retrogression of the former, and that the former is more efficient in dealing with stochastic problems. Finally, a numerical example is given to illustrate the advantage of the new method proposed in this paper.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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