Prof. Len Gelman, PhD, Dr of Sciences (habilitation) is the Chair in Vibro-Acoustic Monitoring and Director of Centre of Vibro-Acoustics and Fatigue, Cranfield University. He has more than 25 year’s experience in signal processing and vibro-acoustic monitoring of complex mechanical systems (e.g. rotating, reciprocating machinery, etc.) both in industry and academia. He has been the Principal Investigator on numerous contracts and grants, including grants from the USA National Academy of Sciences, USA National Research Council, USA International Science Foundation, USA Civilian Research and Development Foundation (twice), USA MacArthur Foundation, Lady Davis, Israel and Centro Volta, Italy. He is the Principal Investigator on grants and contracts from UK EPSRC, UK DTI (three times), UK Royal Society, Rolls Royce (two times), Caterpillar (two times), Shell, Boeing IVHM COE (three times), Scottish Power and London Underground (three times).

He is a Fellow of the British Institute of Non-Destructive Testing (BINDT), UK Institution of Diagnostic Engineers and International Association of Engineers, Chairman of the Condition Monitoring and Diagnostic Technology Committee of the BINDT and Chairman of the International Society for Condition Monitoring. Prof. Gelman is the author of over200 publications (including 17 patents) and 15 plenary keynote papers. He is Editor-in-Chief of the book series “Condition monitoring” (Coxmoor, UK), Chair of 2007 World Congress on Engineering Asset Management, Honorary Co-Chair of 2007, 2008, 2009 and 2010 World Congresses of Engineering and Chair of 2007, 2008, 2009, 2010 and 2011 International Condition Monitoring Conferences. Prof. Gelman is the Honorary Editor-in-Chief of the International Journal of Condition Monitoring. He is a Chief Designer of numerous technologies and engineering prototypes. He has participated in the scientific boards of numerous international conferences, has spent a large amount of time lecturing and consulting to industry in all parts of the world and has held visiting professor positions at 5 overseas universities.
 

Abstract

Condition Monitoring Techniques - Present and Future

The classical condition monitoring techniques for stationary conditions of machinery will be presented: i.e. the classical second order and higher order techniques.

However, for some important practical applications it is necessary to perform diagnosis for transient conditions of machinery. The classical techniques are not suitable for those conditions. Novel condition monitoring techniques will be presented for transient conditions of machinery.

Validation of these novel techniques by simulation and experiments in laboratory and field conditions will also be presented. It is shown that the proposed techniques offer an essential improvement (up to 70%-150%) in effectiveness of damage diagnosis in comparison to the traditional techniques.