INFORMATIVITY'S ANALYSIS OF WAVELETT AND GRAPHIC
REPRESENTATIONS OF VIBRATION SIGNAL IN THE BEARINGS DIAGNOSTICS PROBLEM
А.А. Obleuhov, D.S. Shalaev, T.P. Gryzlova
The new systems of diagnostic
features based on the structural analysis of vibration signals are presented.
In one of the system vibration signals representations are building, afterwards
the conceptual analysis of the image is making. Representative elements
characteristics of the image are the basic system of features. The second
system formed on the set of signal complexity functions characteristics and Haar Wavelet-decomposition. Where the analysis of
decomposition results based on complexity function is performed. The results of
features informativity estimation based on the
analysis of wavelet and graphic representation in bearing diagnostics of GTE
problems and in bearings reliability tests are presented. Features with much
more informativity than informativity
of features in well-known methods of bearing diagnostics are selected. The informativity of the founded features allows building
linear classifiers with simple decision rules.
Key words: features informativity analysis, representative elements, systems of
the conceptual description of images, Wavelet-coefficients, complexity
function, bearing diagnostics of GTE.