Title
Diagnosing Lubricant Shortages in Gearboxes Using Instantaneous Phases from Electrical Signals
Abstract
To improve diagnostic performance, this paper investigates two instantaneous phase quantities: instantaneous power factor (IPF) and instantaneous phase of voltage and current (IPVI) for effectively combining the diagnostic information from both voltage and current measurements. It has shown by an experimental evaluation of oil shortages in a gearbox that the average values of IPF give clear indication of different levels of oil shortages. However, as the dynamic information has been cancelled out largely by the phase subtraction of IPF, it shows less diagnostic information to explain the effect of oil shortages on rotational oscillations of the gearbox. Comparatively, IPVI yields much better diagnostics in separating the oil shortages in wider operating conditions. This mainly because that IPVF is a summation of the two-phase quantities which enhances the signal to noise ratio and consequently the diagnostic performance.
Year
DOI
Venue
2018
10.23919/IConAC.2018.8748999
2018 24th International Conference on Automation and Computing (ICAC)
Keywords
Field
DocType
Instatnanuoues phase,Sensorless VSD,Gearbox,Lubricant shortage,Power factor
Oscillation,Signal,Control theory,Voltage,Signal-to-noise ratio,Power factor,Engineering,Power (physics),Instantaneous phase,Lubricant
Conference
ISBN
Citations 
PageRank 
978-1-5386-4891-9
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Naima Hamad100.68
Xiuquan Sun200.34
Ruiliang Zhang300.34
Samieh Abusaad421.06
Fengshou Gu52323.43
Andrew D. Ball624.82