12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Health monitoring of aircraft wiring by acousti...
View graph of relations

Keywords

« Back

Health monitoring of aircraft wiring by acoustic method

Research output: Contribution in Book/Report/ProceedingsConference contribution

Published

Publication date2009
Host publication2009 IEEE AEROSPACE CONFERENCE, VOLS 1-7
Place of publicationNEW YORK
PublisherIEEE
Pages3744-3753
Number of pages10
ISBN (Print)978-1-4244-2621-8
Original languageEnglish

Abstract

Reliability and dependability challenges within the aerospace, military and civil aviation industries are driving the need for advances in health and usage monitoring technology. One promising method with the potential to complement conventional inspection and electrical test techniques for wiring is acoustic methods. In this paper modelling and experimental results for acoustic signal propagation in various wire systems is reported that includes methods for locating mechanical, electrical and thermal discontinuities in wiring. Simulation results for the pulse echo mode of propagation has provided us a new perspective on the sensitivity achievable. Experimental results support these conclusions. An optimization of the acoustic mode of propagation in a wire by using shear longitudinal and shear transverse excitation are also discussed.(12)