... monitoring crack detection failure analysis machine testing rotors vibrations Due to the fact that propagating fatigue transverse cracks can have catastrophic effects on the reliability of the rotating machinery, an early detection of cracks (i.e., before the crack had propagated to a critical...

... monitoring feature extraction machine testing rolling bearings signal processing vibration measurement empirical mode decomposition intrinsic mode function health diagnosis of rotary machine components rolling bearings Growing demand for high quality production requires that deviation...

... . 19 12 2006 10 07 2007 30 01 2008 acoustic emission testing condition monitoring electrohydrodynamics fault diagnosis lubrication machine bearings machine testing acoustic emission bearing monitoring elastohydrodynamic lubrication The application of acoustic...

... the the waveforms of interest for further analysis. Moderate speed test rig schematic 18 04 2006 23 03 2007 condition monitoring machine testing fault diagnosis acoustic measurement time-frequency analysis acoustic signal processing signal analysis time-frequency...

... amplitude of the n th harmonic component 28 e n = b n ∕ a n 05 02 2004 30 11 2004 machine testing maintenance engineering vibrations electric machines fast Fourier transforms harmonic analysis Large rotating machinery, such as steam turbines...

... 01 May 2002 20 09 2002 tracking adaptive systems recursive estimation least squares approximations vibrations rotation machine testing fast Fourier transforms band-pass filters Rotating machinery represents an important class of mechanical systems. For example...