Artículos de revistas
A Data Compression Method For The Modal Analysis Of Spatially Dense Laser Vibrometer Measurements
Registro en:
Revista Brasileira De Ciencias Mecanicas/journal Of The Brazilian Society Of Mechanical Sciences. , v. 18, n. 1, p. 17 - 23, 1996.
1007386
2-s2.0-0030105679
Autor
De Franca Arruda J.R.
Santos L.A.S.B.
Institución
Resumen
This paper investigates a method which can be used to compress two-dimensional velocity fields measured with the scanning LDV. The compressed data can be used as virtual measurements when estimating modal parameters. The data is compressed spatially using a two-dimensional Fourier series model. The approximation reduces and filters the measured data in the output space for each frequency line. 18 1 17 23 Allemang, R.J., Brown, D.L., Modal Parameter Estimation (1987) Experimental Modal Analysis and Dynamic Component Synthesis, 3. , AFWAL-TR-87-3069, Air Force Wright Aeronautical Labs., Ohio, USA Arruda, J.R.F., Surface Smoothing and Partial Spatial Derivatives Computation Using a Regressive Discrete Fourier Series (1992) Mechanical Systems and Signal Processing, 6 (1), pp. 41-50 Arruda, J.R.F., Spatial Domain Modal Analysis of Lightly-Damped Structures Using Laser Velocimeters (1993) Journal of Vibration and Acoustics, 115 (3), pp. 225-231 Arruda, J.R.F., Rio, S.A.V., Santos, L.A.B., A Space-Frequency Data Compression Method for Spatially Dense Laser Doppler Vibrometer Measurements Shock and Vibration, , to appear Dippery, K.D., Phillips, A.W., Allemang, R.J., Condensation of the Spatial Domain in Modal Parameter Estimation (1994) Proc. of the 12th Int. Modal Analysis Conference, pp. 818-824. , Honolulu, Hawaii, USA., January 31 - February 3 Sun, F., Mitchell, L.D., Arruda, J.R.F., Mode Decoupling Considerations in Mode Shape Measurements of a Plate with Monoexcitation and Laser Doppler Vibrometer (1993) Experimental Techniques, 17 (4), pp. 31-37 Vold, H., Numerically Robust Frequency Domain Modal Parameter Estimation (1990) Sound and Vibration, JANUARY, pp. 38-40