Title | ||
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Diagnosing Lubricant Shortages in Gearboxes Using Instantaneous Phases from Electrical Signals |
Abstract | ||
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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 Hamad | 1 | 0 | 0.68 |
Xiuquan Sun | 2 | 0 | 0.34 |
Ruiliang Zhang | 3 | 0 | 0.34 |
Samieh Abusaad | 4 | 2 | 1.06 |
Fengshou Gu | 5 | 23 | 23.43 |
Andrew D. Ball | 6 | 2 | 4.82 |