Use of cross-time-frequency estimators for structural identification in non-stationary conditions and under unknown excitation

Journal of Sound and Vibration

Volumn 237, Issue 5, 2000, Pages 775-791

  Bonato, P ^a   Ceravolo, R ^b   De Stefano, A ^b   Molinari, F ^b  

^a BOSTON UNIVERSITY   (United States)

^b POLITECNICO DI TORINO   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

ACCELEROMETERS; COMPUTER SIMULATION; CORRELATION METHODS; DEGREES OF FREEDOM (MECHANICS); ESTIMATION; MATHEMATICAL MODELS; MODAL ANALYSIS; STRUCTURAL ANALYSIS;

CROSS TIME FREQUENCY TRANSFORMS; MODAL FILTERS; SIGNAL ACCELEROMETER; STRUCTURAL IDENTIFICATION METHOD;

VIBRATIONS (MECHANICAL);

EID: 0034316332     PISSN: 0022460X     EISSN: None     Source Type: Journal    
DOI: 10.1006/jsvi.2000.3097     Document Type: Article

References (19)

1. COHEN L. Time-Frequency Analysis. 1995;Prentice-Hall, Englewood Cliffs.
2. HLAWATSCH F., BOUDREAUX-BARTELS G. F. Linear and quadratic time-frequency signal representations. IEEE Signal Processing Magazine. 9:1992;21-67.
3. HAMMOND J. K., WHITE P. R. The analysis of non-stationary signals using time-frequency methods. Journal of Sound and Vibration. 190:1996;419-447.
4. BONATO P., CERAVOLO R., DE STEFANO A. Time-frequency and ambiguity function approaches in structural identification. Journal of Engineering Mechanics (ASCE). 123:1997;1260-1267.
5. BRINCKER R., DE STEFANO A., PIOMBO B. Ambient data to analyse the dynamic behaviour of bridges: a first comparison between different techniques. Proceedings of 14th International Modal Analysis Conference, Society of Experimental Mechanics, Bethel, CT, U.S.A. 1996;477-482.
6. CERAVOLO R. Metodi Dinamici Avanzati in Diagnostica Strutturale. 1996;Dept. Struct. Eng. Politecnico di Torino, Turin (in Italian). p. 10.
7. DE STEFANO A., CERAVOLO R., BONATO P., GAGLIATI G., KNAFLITZ M. Analysis of ambient vibration data from Queensborough Bridge using Cohen class time-frequency distributions. Proceedings 14th International Modal Analysis Conference, Society of Experimental Mechanics, Bethel, CT, U.S.A. 1996;470-476.
8. BONATO P., CERAVOLO R., DE STEFANO A., MOLINARI F. A new cross-time-frequency method for the structural identification of mechanical systems in nonstationary conditions. Gilchrist M. D., Dulieu-Barton J. M., Worden K. Damage Assessment of Structures. 1998;363-372 Trans Tech Publications, Uetikon-Zuerich.
9. BONATO P., CERAVOLO R., DE STEFANO A., MOLINARI F. Time-frequency and cross-time-frequency based techniques for the structural identification of systems. Proceedings of the IEEE International Symposium on Time-Frequency and Time-Scale Analysis, Pittsburgh, Pennsylvania, U.S.A. 1998;445-448.
10. CHOI H. I., WILLIAMS W. J. Improved time-frequency representation of multicomponent signals using exponential kernels. IEEE Transactions on Acoustics, Speech and Signal Processing. 37:1989;862-871.
11. BANA C. A. Readings in Multiplecriteria Decision Aid. 1990;Springer-Verlag, Berlin.
12. FANDER G., SPRONK J. Multiplecriteria Decision Methods and Applications. 1985;Springer-Verlag, Berlin.
13. BARANIUK R. G., JONES D. L. A signal-dependent time-frequency representation: optimal kernel design. IEEE Transactions on Acoustics, Speech and Signal Processing. 41:1993;1589-1602.
14. BARANIUK R. G., JONES D. L. A radially gaussian, signal-dependent time-frequency representation. Signal Processing. 32:1993;263-284.
15. BARANIUK R. G., JONES D. L. A signal-dependent time-frequency representation: fast algorithm for optimal kernel design. IEEE Transactions on Acoustics, Speech and Signal Processing. 42:1994;134-146.
16. AUGER F. Some simple parameter determination rules for the generalized Choi-Williams and Butterworth distributions. IEEE Signal Processing Letters. 1:1994;9-11.
17. COSTA A. H., BOUDREAUX-BARTELS G. F. Design of time-frequency representations using a multiform, tiltable exponential kernel. IEEE Transactions on Acoustics Speech and Signal Processing. 43:1995;2283-2301.
18. PAPPANDREOU A., BOUDREAUX-BARTELS G. F. Generalization of the Choi-Williams distribution and the Butterworth distribution for time-frequency analysis. IEEE Transactions on Acoustics, Speech and Signal Processing. 41:1993;463-472.
19. SANG T. H., WILLIAMS W. J. Rényi information and signal-dependent optimal kernel design. Proceedings IEEE Accoustic Signal Speech Process. 5:1995;997-1000.