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Selected Publications:
Books:
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N. Sawalhi, “Vibrations of spalled rolling element bearings,
diagnostics, prognostics and dynamic simulations”, VDM Verlag, 29th May
(2009). ISBN: 3639152417
Journal Papers:
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N. Sawalhi, R.B. Randall and H. Endo, The enhancement of fault detection
and diagnosis in rolling element bearings using minimum entropy deconvolution
combined with spectral kurtosis, Mechanical Systems and Signal Processing, 21(6)
pp. 2616-2633 August (2007).
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N. Sawalhi, R.B. Randall, Simulating gear and bearing interactions in the
presence of faults, Mechanical Systems and Signal Processing (2008),
doi:10.1016/j.ymssp.2007.12.001
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N. Sawalhi, R.B. Randall, Simulating gear and bearing interactions in the
presence of faults... Mechanical Systems and Signal Processing (2008),
doi:10.1016/j.ymssp.2007.12.002
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N. Sawalhi and R.B. Randall, Helicopter Gearbox Bearing Blind Fault
Identification Using a Range of Analysis Techniques, Australian Journal of
Mechanical Engineering, Vol. 5, No. 2, August (2008).
Conference Papers:
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N. Sawalhi and R.B. Randall, The Application of Spectral Kurtosis to
Bearing Diagnostics, ACOUSTICS conference, Gold Coast, Australia, November
(2004).
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N. Sawalhi and R.B. Randall, Spectral Kurtosis Optimization for Rolling
Element Bearings, ISSPA conference, Sydney, Australia, August (2005).
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N. Sawalhi and R.B. Randall, Helicopter Gearbox Bearing Blind Fault
Identification Using a Range of Analysis Techniques, paper presented at the World
Congress on Engineering Asset Management (WCEAM), Gold Coast, Australia, July
(2006).
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N Sawalhi, R.B. Randall and H.Endo, Simulating gear and bearing
interactions in the presence of faults, paper submitted to the 7th IFToMM
conference on rotor dynamics, Vienna, September (2006).
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N. Sawalhi and R.B. Randall, “Semi-automated Bearing Diagnostics
– Three Case Studies”. Paper presented at Comadem conference,
Portugal, June (2007).
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N. Sawalhi and R.B. Randall, “A combined lumped mass parameter and
finite element model of a single stage gearbox for bearing fault
simulation” paper presented at the 21st International Congress and
Exhibition on Condition Monitoring and Diagnostic Engineering Management, Prague,
Czech Republic 11 – 13 June (2008).
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N. Sawalhi and R.B. Randall, “Localised fault diagnosis in rolling
element bearings in gearboxes”, paper presented at the Fifth International
Conference on Condition Monitoring and Machinery Failure Prevention Technologies,
Edinburgh, 15-18 July (2008).
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N. Sawalhi and R.B. Randall, “Improved simulation of faults in
rolling element bearings in Gearboxes” paper presented at the 9th
International Conference on Vibrations in Rotating Machinery, 8-10 September, UK
(2008).
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N. Sawalhi and R.B. Randall, “Novel Signal Processing Techniques to
aid Bearing Prognostics”, paper presented at the first International
Conference on Prognostics and Health Management, Denver, 6-11 October (2008).
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N. Sawalhi and R.B. Randall, “Effects of limiting the bandwidth of
the vibration signal on bearing fault detection and diagnosis using state of the
art techniques”, Paper presented at the sixth DSTO international conference
on Health and Usage Monitoring, Melbourne, 10-12 March (2009).
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N. Sawalhi and R.B. Randall, “Tracking of spall size in rolling
element bearings”, paper presented at the sixth International Conference on
Condition Monitoring and Machinery Failure Prevention Technologies, Dublin, 23-25
June (2009).
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