Detecting wire breaks in post-tensioned tendons of wind turbines: A signal energy spectrum analysis approach

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Contributors

Abstract

This study delves into the identification of wire breaks in post-tensioned tendons through the application of acoustic emission testing. The research involves the evaluation of tendon wire breaks under controlled laboratory conditions and the noise analysis of an operating wind turbine. Specifically, the investigation encompasses the frequency-dependent energy distribution of acoustic signals based on Parseval's theorem. The findings reveal a pronounced concentration of energy within the frequency range of 5-20 kHz in the detected tendon wire break signals. In contrast, the operational noise signals in the wind turbine exhibit a distinct pattern, characterized by an even distribution across a broader frequency spectrum extending up to 50 kHz. This contrasting behaviour between operational noise and tendon wire breaks underscores the need for a detailed analysis within the low frequency range, specifically up to 20 kHz, for further research.

Details

Original languageEnglish
Title of host publicationProceedings of the 11th European Workshop on Structural Health Monitoring (EWSHM 2024)
Pages1-10
Number of pages10
Publication statusPublished - 1 Jul 2024
Peer-reviewedYes

Publication series

SeriesThe e-journal of nondestructive testing & ultrasonics
ISSN1435-4934

External IDs

Scopus 85202624300
ORCID /0000-0001-8735-1345/work/173988472

Keywords

Keywords

  • Energy spectrum, Acoustic emission, Tendon wire break