The long term performance of a guided wave SHM system on a steel tank

Mark Courtier, Anthony Croxford, Kathryn Atherton

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

For many of their intended applications, guided wave structural health monitoring systems are expected to be able to perform well over periods of many years. The results from a system attached to a steel water tank for over 3 years are analysed. From measuring individual parameters of the collected signals including the first arrival time, maximum amplitude, centre frequency and bandwidth, it appeared that no notable long term changes were occurring. When baseline subtraction based data processing algorithms were applied to the dataset, the value of the post subtraction residual increased to values where only gross damage would be detected over a period of weeks. This means that changes, not highlighted by the measured parameters, are occurring over relatively short time scales which would prevent the successful operation of such a system. This demonstrates the need for the long term performance of guided wave structural health monitoring systems to be investigated further.
Original languageEnglish
Title of host publication54th Annual Conference of the British Institute of Non-Destructive Testing (NDT 2015)
Subtitle of host publicationProceedings of a meeting held 8-10 September 2015, Telford, UK
PublisherBritish Institute of Non-Destructive Testing
Pages33-44
Number of pages12
ISBN (Print)9781510813236
Publication statusPublished - 1 May 2016
Event54th Annual British Conference of Non-Destructive Testing, NDT 2015 - Telford, United Kingdom
Duration: 8 Sep 201510 Sep 2015

Conference

Conference54th Annual British Conference of Non-Destructive Testing, NDT 2015
CountryUnited Kingdom
CityTelford
Period8/09/1510/09/15

Keywords

  • Structural Health Monitoring
  • Guided Waves
  • Long term performance

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