Indirect measurement of multiple excitation force spectra by FRF matrix inversion: Influence of errors in statistical estimates of FRFs and response spectra

Acustica

Volumn 85, Issue 4, 1999, Pages 464-479

  Blau, Matthias ^a  

^a DRESDEN UNIVERSITY OF TECHNOLOGY   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER SIMULATION; ERROR ANALYSIS; FAST FOURIER TRANSFORMS; IIR FILTERS; MATRIX ALGEBRA; PROBABILITY DENSITY FUNCTION; SPECTRUM ANALYSIS; STATISTICAL METHODS;

MULTIPLE EXCITATION FORCE SPECTRA;

ACOUSTIC VARIABLES MEASUREMENT;

EID: 0041352041     PISSN: 00017884     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (15)

1. B. J. Dobson, E. Rider: A review of the indirect calculation of excitation forces from measured structural response data. Proceedings of the Institution of Mechanical Engineers 204 (1990) 69-75.
2. T. J. Roggenkamp: An investigation of the indirect measurement of broad-band force spectra. Dissertation. Purdue University, 1992.
3. M. Lewit: Inverse Messung von Kräften und Leistungen in gekoppelten, schwingenden Strukturen. Dissertation. Technische Universität Berlin, 1994.
4. P. Mas, P. Sas, K. Wyckaert: Indirect force identification based upon impedance matrix inversion: A study on statistical and deterministical accuracy. ISMA 19 - Tools for Noise and Vibration Analysis, 1994. 1049-1065.
5. P. R. Wagstaff, Q. Luo, M. Jin, C. Chassaignon: Conditions for obtaining accurate measurements of structural power flow in multiple source situations. Internoise '95, 1995. 583-586.
6. S. E. S. Karlsson: Identification of external structural loads from measured harmonic responses. Journal of Sound and Vibration 196 (1996) 59-74.
7. G. W. Stewart: Introduction to matrix computations. Academic Press, 1973.
8. C. L. Lawson, R. J. Hanson: Solving least squares problems. Prentice-Hall, Inc., 1974.
9. G. H. Golub, C. F. van Loan: Matrix computations. 2nd ed. Johns Hopkins University Press, Baltimore, 1989.
10. P. D. Welch: The use of Fast Fourier Transform for the estimation of power spectra: A method based on time averaging over short modified periodograms. IEEE Transactions on Audio and Electroacoustics AU-15 (1967) 70-73.
11. J. S. Bendat, A. G. Piersol: Random data: Analysis and measurement procedures. 2nd ed. Wiley-Interscience, 1986.
12. J. S. Bendat: Statistical errors in measurement of coherence functions and input/output quantities. Journal of Sound and Vibration 59 (1978) 405-421.
13. A. V. Oppenheim, R. W. Schafer: Discrete-time signal processing. Prentice-Hall, 1989.
14. L. Ljung: System identification: Theory for the user. Prentice-Hall, Inc., 1987.
15. D. Otte: Development and evaluation of singular value analysis methodologies for studying multivariate noise and vibration problems. Dissertation. Katholieke Universiteit Leuven, 1994.