Single-mode projection filters are developed for eigensystem parameter identification from both analytical results and test data. Explicit formulations of these projection filters are derived using the orthogonal matrices of the controllability and observability matrices in the general sense. A global minimum optimization algorithm is applied to update the filter parameters by using the interval analysis method. The updated modal parameters represent the characteristics of the test data. For illustration of this new approach, a numerical simulation for the MAST beam structure is shown by using a one-dimensional global optimization algorithm to identify modal frequencies and damping. The projection filters are practical for parallel processing implementation.
Single-mode projection filters for modal parameter identification for flexible structures
1989-08-01
Miscellaneous
No indication
English
Modal Parameter Identification of Controlled Structures
AIAA | 1997
|Modal Parameter Identification of Controlled Structures
Online Contents | 1997
|Issues in modal identification of flexible structures
AIAA | 1992
|