DELORES - A System for Detection and Localization of Structural Damages

Rasmus Johan Johansen, Martin Dalgaard Ulriksen, Lars Damkilde

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Resumé

Today, structural inspections of large structures, like wind turbines, bridges, etc., are often performed manually by highly trained personnel. Obviously, this inspection approach is both extremely costly and tedious, for which reason this paper provides a presentation of an alternative approach that monitors the structures remotely without human involvement. DELORES (DEtection and LOcalization of RESponse anomalies) is a first version of a system, which utilizes vibration recordings from the healthy and current states of a structure to declare its current health. DELORES employs extended versions of the dynamic damage locating vector (DDLV) and the stochastic dynamic damage locating vector (SDDLV) methods, which include an outlier analysis scheme for a more unambiguous localization of potential damages. The (S)DDLV methods are model-based, which means that a mechanical model of the healthy structure in question is utilized along with measured vibrations of the real structure to determine its current health situation. DELORES provides a user interface with various options that, among other things, make the program suitable for structures modeled in two and three dimensions. The present paper will provide a detailed description of DELORES, along with an application example in which vibrations from a numerical model in three dimensions are treated.
OriginalsprogEngelsk
TitelProceedings of 8th European Workshop On Structural Health Monitoring (EWSHM 2016)
RedaktørerAlfredo Güemes
Antal sider7
Udgivelses stedMadrid
ForlagUniversidad Politécnica de Madrid
Publikationsdato2016
StatusUdgivet - 2016
Begivenhed8th European Workshop On Structural Health Monitoring (EWSHM 2016) - Bilbao, Spanien
Varighed: 5 jul. 20168 jul. 2016
Konferencens nummer: 8
http://www.ewshm2016.com/

Workshop

Workshop8th European Workshop On Structural Health Monitoring (EWSHM 2016)
Nummer8
LandSpanien
ByBilbao
Periode05/07/201608/07/2016
Internetadresse

Fingerprint

Inspection
Health
Wind turbines
User interfaces
Numerical models
Personnel

Emneord

  • Structural health monitoring
  • Damage identification
  • Software development
  • Stochastic dynamic damage locating vector
  • Outlier analysis

Citer dette

Johansen, R. J., Ulriksen, M. D., & Damkilde, L. (2016). DELORES - A System for Detection and Localization of Structural Damages. I A. Güemes (red.), Proceedings of 8th European Workshop On Structural Health Monitoring (EWSHM 2016) Madrid: Universidad Politécnica de Madrid.
Johansen, Rasmus Johan ; Ulriksen, Martin Dalgaard ; Damkilde, Lars. / DELORES - A System for Detection and Localization of Structural Damages. Proceedings of 8th European Workshop On Structural Health Monitoring (EWSHM 2016). red. / Alfredo Güemes. Madrid : Universidad Politécnica de Madrid, 2016.
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title = "DELORES - A System for Detection and Localization of Structural Damages",
abstract = "Today, structural inspections of large structures, like wind turbines, bridges, etc., are often performed manually by highly trained personnel. Obviously, this inspection approach is both extremely costly and tedious, for which reason this paper provides a presentation of an alternative approach that monitors the structures remotely without human involvement. DELORES (DEtection and LOcalization of RESponse anomalies) is a first version of a system, which utilizes vibration recordings from the healthy and current states of a structure to declare its current health. DELORES employs extended versions of the dynamic damage locating vector (DDLV) and the stochastic dynamic damage locating vector (SDDLV) methods, which include an outlier analysis scheme for a more unambiguous localization of potential damages. The (S)DDLV methods are model-based, which means that a mechanical model of the healthy structure in question is utilized along with measured vibrations of the real structure to determine its current health situation. DELORES provides a user interface with various options that, among other things, make the program suitable for structures modeled in two and three dimensions. The present paper will provide a detailed description of DELORES, along with an application example in which vibrations from a numerical model in three dimensions are treated.",
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Johansen, RJ, Ulriksen, MD & Damkilde, L 2016, DELORES - A System for Detection and Localization of Structural Damages. i A Güemes (red.), Proceedings of 8th European Workshop On Structural Health Monitoring (EWSHM 2016). Universidad Politécnica de Madrid, Madrid, 8th European Workshop On Structural Health Monitoring (EWSHM 2016) , Bilbao, Spanien, 05/07/2016.

DELORES - A System for Detection and Localization of Structural Damages. / Johansen, Rasmus Johan; Ulriksen, Martin Dalgaard; Damkilde, Lars.

Proceedings of 8th European Workshop On Structural Health Monitoring (EWSHM 2016). red. / Alfredo Güemes. Madrid : Universidad Politécnica de Madrid, 2016.

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

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Johansen RJ, Ulriksen MD, Damkilde L. DELORES - A System for Detection and Localization of Structural Damages. I Güemes A, red., Proceedings of 8th European Workshop On Structural Health Monitoring (EWSHM 2016). Madrid: Universidad Politécnica de Madrid. 2016