The purpose of this article is to determine optimal conditions for rotor machinery operation in order to evaluate its condition using coherent function. The coherent function is an analogue of the correlation factor in frequency domain. The function reflects the linear relationship levels of harmonic components of parallel signals covered in the article. The conditions are considered optimal when the coherence function is expressed the most evidently. In other words, the coherent components are close to one.
Kumenko A.I., Boychenko S.N., Teterin A.O. Selection of coherent frequency components of vibroacoustic signals from assemblies of rotor machinery // Procedia Engineering. - 2016. - № 152. - P.511 – 515
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