N.I.Burau, Yu.V.Sopilka Increasing of sensitivity of discriminate signs of a crack in problems of vibroacoustical diagnostics of rotary system elements |
Acoustic bulletin, Vol. 6 ¹ 3, (2003) |
| In order to increase the sensitivity of amplitude discriminates serving the fault features for vibroacoustical diagnosis of fatigue cracks in the elements of rotary systems a preliminary wavelet decomposition of measured acoustical signal is used. The effectiveness of the two-level processing of acoustic signal, radiated by the imitator of rotary system at stationary and non-stationary regimes of operation, for diagnosis of fatigue crack is shown. |
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KEY WORDS: amplitude discriminates, tasks of vibroacoustical diagnosis, fatigue cracks, wavelet transform |
| TEXT LANGUAGE: Russian |