Evaluation of orthogonal damping matrices
作者:
E. L. Wilson,
J. Penzien,
期刊:
International Journal for Numerical Methods in Engineering
(WILEY Available online 1972)
卷期:
Volume 4,
issue 1
页码: 5-10
ISSN:0029-5981
年代: 1972
DOI:10.1002/nme.1620040103
出版商: John Wiley&Sons, Ltd
数据来源: WILEY
摘要:
AbstractTwo methods for the numerical evaluation of orthogonal damping matrices are developed. The first relates the modal damping ratios to the coefficients of the Caughey series. The second is a direct approach which expresses the damping matrix as a sum of a series of matrices each of which produces damping in a particular mode. It is found that the direct approach is more convenient to apply and is less numerically sensitive than the series approach.
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