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Failure investigation of a solar tracker due to wind-induced torsional galloping
dc.contributor.author | Valentín Ruiz, David |
dc.contributor.author | Valero Ferrando, Ma. del Carmen |
dc.contributor.author | Egusquiza Montagut, Mònica |
dc.contributor.author | Presas Batlló, Alexandre |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Mecànica de Fluids |
dc.date.accessioned | 2022-03-04T11:00:17Z |
dc.date.available | 2022-03-04T11:00:17Z |
dc.date.issued | 2022-05-01 |
dc.identifier.citation | Valentin, D. [et al.]. Failure investigation of a solar tracker due to wind-induced torsional galloping. "Engineering failure analysis", 1 Maig 2022, vol. 135, núm. 106137, p. 106137: 1-106137: 11. |
dc.identifier.issn | 1350-6307 |
dc.identifier.uri | http://hdl.handle.net/2117/363426 |
dc.description.abstract | Solar power installations are increasing every year due to the decarbonization policy established around the world. Photovoltaic (PV) systems and specifically one-axis solar trackers are the most used type of installations in solar power plants. Those solar trackers are slender structures installed in open-air areas sometimes subjected to high speed winds. During the last years, failures in these structures are starting to appear, and most of them are related to a dynamic phenomenon called torsional galloping. The torsional galloping is an aeroelastic instability that presents very high deformation amplitudes and can be triggered at certain wind speeds and tilt angles of the solar tracker. In this paper, a failure investigation of a solar tracker due to torsional galloping is carried out. The broken structure has been analyzed in the field and a numerical model of the structure has been built up. The numerical model is used to identify the natural frequencies of the structure as well as the maximum stresses in the different pieces of the solar tracker. The numerical investigation confirmed that the cause of the failure was torsional galloping occurring for high speed winds and with a tilt angle of the solar tracker of 0 degrees. |
dc.language.iso | eng |
dc.publisher | Elsevier |
dc.rights | Attribution 4.0 International (CC BY 4.0) |
dc.rights | © 2021 Elsevier |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
dc.subject.lcsh | Photovoltaic power generation |
dc.subject.other | Solar power |
dc.subject.other | Galloping |
dc.subject.other | Flutter |
dc.subject.other | Sola tracker |
dc.subject.other | Aeroelasticity |
dc.title | Failure investigation of a solar tracker due to wind-induced torsional galloping |
dc.type | Article |
dc.subject.lemac | Energia solar fotovoltaica |
dc.contributor.group | Universitat Politècnica de Catalunya. CDIF - Centre de Diagnòstic Industrial i Fluidodinàmica |
dc.contributor.group | Universitat Politècnica de Catalunya. FLUIDS - Enginyeria de Fluids |
dc.identifier.doi | 10.1016/j.engfailanal.2022.106137 |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S135063072200111X |
dc.rights.access | Open Access |
local.identifier.drac | 32856740 |
dc.description.version | Postprint (updated version) |
local.citation.author | Valentin, D.; Valero, M.; Egusquiza, M.; Presas, A. |
local.citation.publicationName | Engineering failure analysis |
local.citation.volume | 135 |
local.citation.number | 106137 |
local.citation.startingPage | 106137: 1 |
local.citation.endingPage | 106137: 11 |
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