NASA NTRS · 19850026112
Automated dynamic analytical model improvement for damped structures
Abstract
A method is described to improve a linear nonproportionally damped analytical model of a structure. The procedure finds the smallest changes in the analytical model such that the improved model matches the measured modal parameters. Features of the method are: (1) ability to properly treat complex valued modal parameters of a damped system; (2) applicability to realistically large structural models; and (3) computationally efficiency without involving eigensolutions and inversion of a large matrix.
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Fuh, J. S., Berman, A.. 1985-09-01. Automated dynamic analytical model improvement for damped structures. https://ntrs.nasa.gov/citations/19850026112
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