期刊
出版社
EDP SCIENCES S A
DOI: 10.1051/m2an/2010007
关键词
Eigenvalues; modal analysis; multilevel; substructuring; domain decomposition; dimensional reduction; finite elements
资金
- Laboratory Directed Research and Development program at Sandia National Laboratories
- U.S. Department of Energy [DE-AC04-94AL85000]
The goal of our paper is to introduce basis functions for the finite element discretization of a second order linear elliptic operator with rough or highly oscillating coefficients. The proposed basis functions are inspired by the classic idea of component mode synthesis and exploit an orthogonal decomposition of the trial subspace to minimize the energy. Numerical experiments illustrate the effectiveness of the proposed basis functions.
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