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A frequency condensation method for the eigenvalue problem. (English) Zbl 0899.65017
The author presents the frequency condensation method for solving the eigenvalue problem of a large matrix system. Here, the eigenvalue problem is reduced to a smaller one by condensing the stiffness and mass matrices. The proposed method is used for the computation of the eigenvalues within a preset frequency range and of the corresponding eigenvectors.
The accuracy and performance of this method are demonstrated on a numerical example. The computation time is compared with the time needed by the application of subspace iteration and the Lanczos methods.
Reviewer: M.Jung (Chemnitz)

65F15 Numerical computation of eigenvalues and eigenvectors of matrices
Full Text: DOI
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