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Diagnostics of vibration and noise via Fourier transforms: A new approach

Gelman, Leonid M. ; Petrunin, Ivan V. ; Shirkov, Vladimir T.

The Journal of the Acoustical Society of America, November 2000, Vol.108(5), pp.2505-2505 [Periódico revisado por pares]

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Título:
Diagnostics of vibration and noise via Fourier transforms: A new approach
Autor: Gelman, Leonid M. ; Petrunin, Ivan V. ; Shirkov, Vladimir T.
Assuntos: Program Abstracts Of The 140th Meeting Of The Acoustical Society Of America
É parte de: The Journal of the Acoustical Society of America, November 2000, Vol.108(5), pp.2505-2505
Descrição: A new general optimal approach and new diagnostic features are proposed, for those cases where one‐ and multidimensional Fourier transforms are used for diagnostics of vibration and noise. For the forced oscillation vibroacoustical diagnostics method with Gaussian excitation, the optimal nonlinear transformation of the proposed features is received. It was shown (1) The power spectral density is optimal transformation for considered diagnostics only for specific situations; (2) The phase spectrum is not optimal transformation for considered diagnostics; and (3) The proposed approach provides the increment of diagnostics effectiveness in contrast with usage of power spectral density. This is in contrast to most applications concerning diagnostics of vibration and noise, where power spectral density is used.
Idioma: Inglês

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