Abstract
In the present paper, we propose a modification to the Eigen system Realization Algorithm with Data Correlation (ERA/DC) for modal-parameter identification of structural systems subjected to stationary white-noise ambient vibration. By setting up a correlation-function matrix of stationary responses and introducing an appropriate factorization of the matrix, modal parameters of a system could then be effectively identified through the singular-value decomposition and eigenvalue analysis. Through numerical simulations, effectiveness and robustness of the proposed identification method is demonstrated.
Original language | English |
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Pages (from-to) | 79-86 |
Number of pages | 8 |
Journal | Journal of Aeronautics, Astronautics and Aviation |
Volume | 42 |
Issue number | 2 |
Publication status | Published - 2010 Jun |
All Science Journal Classification (ASJC) codes
- Aerospace Engineering
- Space and Planetary Science