... distributions and thus identify the type of looseness fault at machinery. electric machines fault diagnosis Hilbert transforms machine bearings rotors vibrations HHT EEMD looseness fault diagnosis vibration analysis marginal Hilbert spectrum Because of long-term running or improper...

... possible to improve fault diagnosis accuracy to reduce downtime of machineries. fault diagnosis genetic algorithm integration diagnosis rotating machinery artificial immune systems condition monitoring electric machines fault diagnosis genetic algorithms neural nets reliability...

... vibrations electric machines time-frequency analysis fast Fourier transforms wavelet transforms splines (mathematics) Signals consisting of stationary components plus transients are encountered very often in practice. A typical example is the vibration signals generated in rotating machinery...

... 2005 vibration isolation vibration control elasticity rotors electric machines vibration absorber natural frequency rotor eccentric rotor shaft bending mechanical looseness nonprismatic beam impedance The dynamic vibration absorber is an effective device to reduce...

... . 12 12 2004 09 09 2005 life testing ball bearings rotation electric machines damping flywheels mechanical contact Although active magnetic bearings (AMBs) provide such advantages over conventional mechanical bearings as high-speed capability due...

... 05 2005 electric machines nonlinear dynamical systems chaos vibrations rotors mechanical stability machine bearings state-space methods Poincare mapping fast Fourier transforms Lyapunov methods condition monitoring Elwell R. C. , and Findlay J. A. , 1969...

... bearings) or hydrodynamic (fluid) bearings. vibrations structural acoustics rotors stators electric machines finite element analysis machine bearings 2005 ASME ...

... an unbalance excitation as if the rotor were rotating in the negative (clockwise) direction. 24 02 2003 01 12 2004 rotors stators vibrations structural acoustics mechanical contact nonlinear systems electric machines wear Rotor-to-stator rubbing can degrade the performance...

... is down to the same level. However, the GIFFT provides a more precise estimation of second harmonic component in comparison with the IFFT. 05 02 2004 30 11 2004 machine testing maintenance engineering vibrations electric machines fast Fourier transforms harmonic analysis...

... turbomachinery vibrations damping laminar flow electric machines rotors mechanical stability 2005 American Society of Mechanical Engineers ...

... to the cepstrum analysis. With this procedure, a correct distribution of the excitations can be obtained. An example of application to the condition monitoring of rotor machinery is also presented. cepstral analysis condition monitoring acoustic signal processing vibrations electric machines 01...