Improving eigenpairs of automated multilevel substructuring with subspace iterations | |
Yin, Jiacong ; Voss, Heinrich ; Chen, Pu | |
刊名 | 计算机与结构 |
2013 | |
关键词 | Eigenvalue Eigenvector AMLS Subspace iteration GENERALIZED EIGENPROBLEMS INVERSE ITERATION COMPUTATION |
DOI | 10.1016/j.compstruc.2013.01.004 |
英文摘要 | This paper improves the eigenpair approximations obtained from the automated multilevel substructuring (AMLS) method by subspace iterations. Two variants of AMLS hybrid Subspace Iteration Method (AMLS-SIMa and AMLS-SIMb) are proposed. AMLS-SIMa is a derivative of the basic subspace iteration by utilizing the AMLS approximations as initial vectors. AMLS-SIMb further takes advantage of the AMLS transformed block diagonal stiffness matrix to avoid factorization of the original stiffness matrix. Numerical experiments show that: (a) the error of AMLS approximate eigenpairs can be significantly reduced with just a few iteration steps; (b)AMLS-SIMb is more efficient than AMLS-SIMa with less execution time. (C) 2013 Elsevier Ltd. All rights reserved.; Computer Science, Interdisciplinary Applications; Engineering, Civil; SCI(E); EI; 3; ARTICLE; 115-124; 119 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/154498] |
专题 | 工学院 |
推荐引用方式 GB/T 7714 | Yin, Jiacong,Voss, Heinrich,Chen, Pu. Improving eigenpairs of automated multilevel substructuring with subspace iterations[J]. 计算机与结构,2013. |
APA | Yin, Jiacong,Voss, Heinrich,&Chen, Pu.(2013).Improving eigenpairs of automated multilevel substructuring with subspace iterations.计算机与结构. |
MLA | Yin, Jiacong,et al."Improving eigenpairs of automated multilevel substructuring with subspace iterations".计算机与结构 (2013). |
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