Non-linear method of analytical information vibration signal processing
Abstract
Non-linear method of analytical information vibration signal processing
Incoming article date: 01.07.2019The article presents the non-linear method of analytical information vibration signal processing. This method allows to select spectral components of small amplitude stress concentrators on the backgroud noise. The method is based on digital filtering and demodulation of original vibration signal through its non-linear conversion. Application of smoothing the Hamming window allows to reduce the transition band nonrecursive digital filter and exclude from the sample of information parasitic components. The proposed non-linear analytical information vibration signal processing method lets to select spectral components of surface cracks and sinks most responsible elements of the rotor system and explore its dynamic sustainability.
Keywords: non-linear transformation of analytical information vibration signal, discrete Fourier transform, Hamming window, stress concentrators, dynamic sustainability of rotor system