Cranfield University

Professor Len Gelman

Professor, Chair in Vibro-Acoustic Monitoring
Location: Building 52
E: l.gelman@cranfield.ac.uk
T: +44 (0) 1234 750111 ext 5425
Department of Applied Mathematics and Computing

Current activities

Vibro-acoustic monitoring for aircraft engines, steam turbines, air compressors, gearboxes and gas turbines for pipelines. Fatigue and damping research for textile composites.

Course director of:

(CPD/Short course)

Background

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 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, Centro Volta, Italy. He is Principal Investigator on UK EPSRC, UK DTI (three times), UK Royal Society, Rolls Royce (two times), Caterpillar (two times) and Shell grants.

He is a Fellow of the British Institute of Non-Destructive Testing (BINDT) and UK Institution of Diagnostic Engineers, Chairman of the Condition Monitoring and Diagnostic Technology Committee of the BINDT and Director of the International Institute of Acoustics and Vibration (USA). He is the author of over200 publications (including 17 patents) and 11 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 and 2009 World Congresses of Engineering and Chair of 2008 and 2009 Condition Monitoring Conferences. 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.

Selected publications

1. Gelman L., Piece-wise model and estimates of damping and natural frequency for a spur gear, Mechanical Systems and Signal Processing, 21 (2), 2007, pp. 1192-1196
2. Gelman L., Crocker M., Jenkin P., Petrunin I., Vibroacoustical damping diagnostics: complex frequency response function vs. it’s magnitude, International Journal of Acoustics and Vibration, 11 (3), 2006, pp.120-124
3. Gelman L.M., Giurgiutiu V., Bayoumi A., Dynamic mean excitation for a spur gear, ASME Journal, Acoustics and Vibration, June 2005, pp. 204-208
4. Gelman L., Crocker M., Jenkin P., Sanderson M., Thompson C., A new approach for condition monitoring and signal processing, International Journal of Acoustics and Vibration, 9 (1), 2004, pp. 13-16
5. Gelman L.M., Petrunin I.V., Sanderson M. L., Thompson C. P., Vibro-acoustic deposit detection in pipelines, Insight, 45 (7), 2003, pp. 466-474
6. Gelman L. M., Sanderson M. L., Thompson C. P., Signal recognition: Fourier transform vs. Cosine transform, Pattern Recognition Letters, 24, 2003, pp. 2823-2827
7. Gelman L. M., Sanderson M. L., Thompson C.P., Signal recognition: Fourier transform vs. Hartley transform, Pattern Recognition, 36, 2003, pp. 2849-2853
8. Gelman L. M., Signal recognition: both components of the short time Fourier transform vs. power spectral density, Pattern Analysis and Applications, 6, 2003, pp. 91-96
9. Gelman L. M., Braun S. G., The optimal usage of the Fourier transform for pattern recognition, Mechanical Systems and Signal Processing, 15 (3), 2001, pp. 641-645
10. Gelman L. M., Gorpinich S. V.,Non-Linear vibroacoustical free oscillation method for crack detection and evaluation, Mechanical Systems and Signal Processing, vol. 14(3), 2000, pp. 343-351