Mechanical sensitivity analysis of strain gauge configurations in the main shaft of wind turbines

Bacaicoa Díaz, Julen; Iriarte Goñi, Xabier; Aginaga García, Jokin; Plaza Puértolas, Aitor

Mechanical sensitivity analysis of strain gauge configurations in the main shaft of wind turbines

dc.contributor.author	Bacaicoa Díaz, Julen
dc.contributor.author	Iriarte Goñi, Xabier
dc.contributor.author	Aginaga García, Jokin
dc.contributor.author	Plaza Puértolas, Aitor
dc.contributor.department	Ingeniaritza	eu
dc.contributor.department	Institute of Smart Cities - ISC	en
dc.contributor.department	Ingeniería	es_ES
dc.date.accessioned	2022-06-17T11:07:49Z
dc.date.available	2022-06-17T11:07:49Z
dc.date.issued	2022
dc.description	Trabajo presentado a The Science of Making Torque from Wind (TORQUE 2022), Holanda, 2022	es_ES
dc.description	Incluye póster	es_ES
dc.description.abstract	Wind turbines are reaching their remaining useful life, thus it is important to guarantee the well status of its components. A common way to check the status is to measure the loads on the Low Speed Shaft with strain gauges, but not always are bonded perfectly. In this work a sensitivity analysis of strain gauge con gurations is carried out, where the infuence of geometric and material parameters, and misplacement and misalignment parameters is analyzed. An analytical model for a single gauge was developed, obtaining a relation between the exerted loads and the strain measured by the strain gauge. By means of Taylor approximations the estimated loads were approached in order to have into account the in uence of the uncertainty of parameters. Results shown that the sensitivities with respect to the geometric and material parameters did not depend on the secondary loads while in the sensitivities with respect to the gauge bonding parameters the cross-talk e ect was present. In order to obtain realistic numerical results, a horizontal-axis NREL 5-MW wind turbine was simulated in OpenFAST with two wind-speed scenarios. The uncertainty of the estimated loads by the strain gauge con gurations was calculated.	en
dc.format.extent	10 p.
dc.format.mimetype	application/pdf	en
dc.identifier.doi	10.1088/1742-6596/2265/3/032087
dc.identifier.issn	1742-6596 (Electronic)
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/43180
dc.language.iso	eng	en
dc.publisher	IOP Publishing	en
dc.relation.ispartof	Journal of Physics: Conference Series 2265 (2022) 032087	en
dc.relation.publisherversion	https://doi.org/10.1088/1742-6596/2265/3/032087	en
dc.rights	Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://creativecommons.org/licenses/by/3.0/
dc.subject	Wind turbines	en
dc.subject	Strain gauges	en
dc.subject	Mechanical sensitivity	en
dc.subject	Load estimation	en
dc.subject	Condition monitoring	en
dc.title	Mechanical sensitivity analysis of strain gauge configurations in the main shaft of wind turbines	en
dc.type	info:eu-repo/semantics/conferenceObject
dspace.entity.type	Publication
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