... are closely related to misalignment phenomena, as to accommodate its inevitable presence is one of the coupling’s main functions, alongside with torque transmission. angular misalignment disc coupling finite element method fault diagnosis vibration spectrums machine dynamics mechanical...

... Adapted Wavelet ,” ASME J. Vib. Acoust. , 129 ( 4 ), pp. 495 – 506 . 10.1115/1.2748475 [2] Lei , Y. , He , Z. , and Zi , Y. , 2008 , “ Application of a Novel Hybrid Intelligent Method to Compound Fault Diagnosis of Locomotive Roller Bearings ,” ASME J. Vib. Acoust. , 130 ( 3 ), p...

... the location of faults. According to this principle, a method based on EEMD and the Teager energy operator is proposed for fault diagnosis of rolling element bearings. Firstly, EEMD is applied to decompose a signal into monocomponents in order to satisfy the monocomponent requirement by the Teager energy...

... classification accuracy of 97% was obtained over a range of rotating speeds. 08 07 2010 30 10 2010 09 09 2011 09 09 2011 fault diagnosis feature extraction materials testing neural nets pattern classification rolling bearings vibrations Rotating machineries are probably...

... or structure may not be accessible to directly inspect due to the restriction of disassembly, size, or environment, it is necessary to develop the fault diagnosis or identification techniques for monitoring the looseness condition of the operating machinery. The vibration of the machine, in general, gives...

... , J. D. , and Chuang , C. Q. , 2005 , “ Fault Diagnosis of Internal Combustion Engines Using Visual Dot Patterns of Acoustic and Vibration Signals ,” NDT Int. 0308-9126 , 38 , pp. 605 – 614 . 10.1016/j.ndteint.2005.02.007 Shibata , K. , Takahashi , A. , and Shirai , T...

...Yaguo Lei; Zhengjia He; Yanyang Zi This paper presents a new method for fault diagnosis of rolling element bearings, which is developed based on a combination of weighted K nearest neighbor ( W K NN ) classifiers. This method uses wavelet packet transform based on the lifting scheme to preprocess...

... 07 2009 19 11 2009 19 11 2009 aerospace components aerospace engines ball bearings beams (structures) failure (mechanical) fault diagnosis integration mechanical contact rotors stators vibrations In general, the rotor of aero-engine is supported on the stator...

... Machinery Based on Cyclostationary Time Series Model ,” ASME J. Vibr. Acoust. 0739-3717 10.1115/1.2345674 , 128 ( 5 ), pp. 666 – 671 . Wang , Y. C. , 2003 , “ Progress and Prospects of Intelligence Fault Diagnosis Technology ,” Journal of Xuzhou institute of Architectural Technology , 3...

... waves rotors structural acoustics time-frequency analysis vibrations modal acoustic emission rubbing wavelet transform reassigned wavelet scalogram fault diagnosis Large rotating machinery is always the very key equipment in the industry. Moreover, the importance of condition...

.... , and Cristalli , C. , 2005 , “ Optimization of Morlet Wavelet for Mechanical Fault Diagnosis ,” 12th International Congress on Sound and Vibration (ICSV ’05) , Lisbon, Portugal , Jul., Vol. 1 . Lin , J. , and Qu , L. , 2000 , “ Feature Extraction Based on Morlet Wavelet and Its Application...

... clearly. (2) Also, the distribution of the frequency spectrum of the time-domain signal may change, which signifies that a change of the convergence of the frequency spectrum may take place. This may be indicated with F 6 . Fault diagnosis of machinery is in essence a kind of pattern...

... systems, such as time-frequency analysis and wavelets ( 1 2 ), time-domain averages ( 3 ), autoregressive modeling ( 4 ), and cyclostationarity ( 5 ). Wang ( 6 ) presented an evaluation of some of the emerging techniques in the field. Gear fault diagnosis can be a challenging task because vibration...

... . 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...

... to machine fault diagnosis, a comprehensive review is presented in Ref. 10 . Although the benefits obtained from the application of the time-frequency analysis techniques in the monitoring and fault-detection of machinery have been highlighted by various examples, they are not always effective. In fact...

... differential equations springs (mechanical) vibrations fault diagnosis structural health monitoring damage identification nonlinear dynamics attractor analysis differential evolution excitation optimization prediction error evolutionary algorithms Research within the structural health...

... and Identification of Defects in Rotating Machinery, Part I: Theoretical Model ,” J. Sound Vib. 0022-460X , 216 , pp. 553 – 570 . Baillie , D. C. , and Mathew , J. , 1996 , “ A Comparison of Autoregressive Modeling Techniques for Fault Diagnosis of Rolling Element Bearings ,” Mech. Syst. Signal...

... to be independent. 11 08 2003 16 11 2004 29 11 2004 turbines fault diagnosis vibrational modes aerospace industry modelling variational techniques crack detection geometry Vehicle health monitoring systems are becoming a critical safety boosting component in a significant...

... the performance of the multiple fault diagnosis scheme. Three state left-to-right continuous density HMMs were used to model the bearing conditions. Three Gaussian distributions were used in the output map for each state. In the feature extraction process, we used 0.34 s ( 2 12 data points) windows...

... Systems ,” Mech. Mach. Theory , 13 ( 3 ), pp. 423 – 436 . Lin , J. , and Zuo , M. J. , 2003 , “ Gearbox Fault Diagnosis Using Adaptive Wavelet Filter ,” Mechanical Systems and Signal Processing , 17 ( 6 ), pp. 1259 – 1269 . Randall , R. B. , Antoni , I. , and Chobsaard...