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- W2091225466 abstract "Prediction methods of noise radiated by vibrating structures are of great interest in many applications. Normal acceleration measurements at the radiatorsurface can be used in combinationwith amethod based on the Rayleigh integral to deduce the far- eld radiation corresponding to the excitation sources. This method is very attractive because it is based mainly on the wave-number spectra computed by two-dimensional discrete Fourier transform. The acceleration distribution data are collected with an array of transducers in most practical cases. The spatial samplingperiod followstheNyquist theorem up to time frequencyFMAX . The acoustic computationfrommeasured data is inaccurate up to FMAX for some observation directions because of the limited domain in which the wavenumber spectra are available. A solution is proposed in this paper to remove this limitation. The wave-number spectra computationaldomain is extended by interpolating the acceleration distribution.This technique is applied in estimation of the far- eld pressure radiated by a steel-baf ed plate tested in an anechoic chamber. Comparisons between experimental measurements and estimated amplitudes carried out with interpolated data are in good agreement in all spatial directions up to FMAX ." @default.
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- W2091225466 date "2000-05-01" @default.
- W2091225466 modified "2023-09-27" @default.
- W2091225466 title "Far-Field Pressure Estimation of a Plate from the Interpolated Acceleration Distribution" @default.
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- W2091225466 doi "https://doi.org/10.2514/2.2615" @default.
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