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An Eigensystem Realization Algorithm for Identification of Modal Parameters of Nonviscous Damping Structure System.
- Source :
- International Journal of Structural Stability & Dynamics; Mar2024, Vol. 24 Issue 5, p1-17, 17p
- Publication Year :
- 2024
-
Abstract
- In this paper, a modified eigensystem realization algorithm for modal parameter identification and relaxation parameter is extended from a viscous damping system to a nonviscous damping system. The equation of motion with nonviscous damping in second-order form is expressed in the state space formulation. The eigenvalues of the second-order form equation are proved equal to the state space formulation. The extended method is based on the proposed nonlinear relationship between the eigenvalues and the damping parameters of a nonviscous damping system. The identified procedure of the proposed method is given in detail. Finally, the method is validated using three numerical examples for assessing its accuracy. [ABSTRACT FROM AUTHOR]
- Subjects :
- PARAMETER identification
ALGORITHMS
EIGENVALUES
HILBERT-Huang transform
Subjects
Details
- Language :
- English
- ISSN :
- 02194554
- Volume :
- 24
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- International Journal of Structural Stability & Dynamics
- Publication Type :
- Academic Journal
- Accession number :
- 176068919
- Full Text :
- https://doi.org/10.1142/S0219455424500524