.... The experimental approach is based on performing free-decay tests of a spring-mounted cylinder submerged in a water tank. The identification of the instantaneous modal parameters (damping and frequency), via Hilbert transform, of the decaying oscillations allows the determination of ( c D ) and ( c M ) by direct...

... 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...

... 2007 03 04 2008 adaptive systems fault diagnosis feature extraction filtering theory fuzzy neural nets genetic algorithms Hilbert transforms inference mechanisms locomotives mechanical engineering computing pattern classification rolling bearings statistical analysis time...

... depends on a number of factors, such as vibration level, granular material properties, packing ratio, etc. In this study, free vibration experiments are conducted on a cantilevered beam incorporated with granular damping. A signal analysis approach based on the Hilbert transform (HT) is then employed...