Adrian Nembhard

Adrian Nembhard

My PhD has some of the most supportive supervisors I have ever encountered. In addition, the taught course offered in Maintenance Engineering and Asset Management has an ideal balance of theoretical and practical application of best practices.

About me

Five years of work experience in the demanding alumina refining industry in Jamaica sparked my interest in the field of Reliability Engineering and Industrial Asset Management. That interest was furthered with my Maintenance Engineering and Asset Management [MSc] taught degree here at The University of Manchester.

My background is in mechanical engineering, with an undergraduate degree from The University of the West Indies, St Augustine campus.

I was awarded the Commonwealth Scholarship to read for the MSc course, and now I intend to perpetuate the work I started in my dissertation as PhD research.

My project

Project title: Comparison of Thermal and Vibration Analyses for the Condition Monitoring of Rotating Machines

Project abstract: With exception of vibration analysis, there is a deficiency of experimental studies that investigate diagnosis of rotor related faults. Vibration analysis is a mature condition monitoring technique that can identify fault conditions, but usually at the expense of the simplicity, as advanced and involved analyses are required. The objective of this study was to assess whether simple vibration analysis and bearing temperature analysis can identify rotor related faults quickly and easily. The study was also aimed at assessing fault diagnosis capabilities of a novel but simple combined thermal and vibration analysis approach.

Experiments were conducted on a small laboratory rig of rigidly coupled dissimilar length shafts supported on four anti-friction bearings. Vibration and temperature measurements were taken on each bearing with different rotor related faults simulated. Vibration analysis was done first, then thermal analysis and afterwards the combined approach was considered. It was observed that vibration or thermal analysis alone may not be good enough to give indication of faults. However combined thermal and vibration analysis seems to give good indication of different faults in a single analysis step. Hence, the combined thermal and vibration analysis was proposed as a novel but simple alternative to conventional vibration analysis for condition monitoring of rotating machinery.

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