Artículos de revistas
SPATIAL DOMAIN MODAL-ANALYSIS OF LIGHTLY-DAMPED STRUCTURES USING LASER VELOCIMETERS
Registro en:
Journal Of Vibration And Acoustics-transactions Of The Asme. Asme-amer Soc Mechanical Eng, v. 115, n. 3, n. 225, n. 231, 1993.
1048-9002
WOS:A1993LP49600001
10.1115/1.2930337
Autor
ARRUDA, JRF
Institución
Resumen
Traditional modal identification techniques do not take advantage of the high spatial density of scanning Laser Doppler Velocimeter (LDV) measurements. In this paper, a spatial modal parameter estimation technique, specially adapted for use with LDV measurements, is presented. It is based on a real-mode modal filtering concept and, therefore, is applicable to structures with low damping. From the estimated mode shape surfaces, curve-fitted with two-dimensional Fourier series, angular displacements are calculated. A rectangular plate example illustrates the proposed techniques with both numerically simulated and experimental results. 115 3 225 231