On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment

Autores
Otero, Alejandro Daniel; Ponta, Fernando Luis
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this paper we investigate the sources of cyclic loads affecting the structural solicitation and power production in Horizontal Axis Wind Turbines, in particular the role of blade-section misalignment. These loads could become determinant in future designs of extra-large turbines, limiting lifespan due to fatigue of structural and mechanical components. Gravity loads would also become more significant in future up-scaled machines due to the square-cube law relation between energy capture and rotor mass. We identify the different constructive factors and physical mechanisms which constitute the sources of the cyclic loads on the rotor, and present a methodology to analyze the contribution of each one of them. We propose six hypothetical scenarios to illustrate the individual effect of each of the aforementioned sources on the aerodynamic and structural variables that characterize the operational state of the turbine. We analyze the evolution of aerodynamic variables which characterize rotor interference and its relation with the angle of attack on the blade sections. Structural variables are also analyzed, showing the contribution of both aerodynamic and gravity loads, inducing out-of-plane bending and torsional oscillations, and how these could be activated by bend-twist coupling on the blade structural response.
Fil: Otero, Alejandro Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Simulación Computacional para Aplicaciones Tecnológicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina. Michigan Technological University; Estados Unidos
Fil: Ponta, Fernando Luis. Michigan Technological University; Estados Unidos
Materia
AERODYNAMIC MISALIGNMENT
CYCLIC LOADS
HORIZONTAL AXIS WIND TURBINES
WIND ENERGY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/85841
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/85841
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignmentOtero, Alejandro DanielPonta, Fernando LuisAERODYNAMIC MISALIGNMENTCYCLIC LOADSHORIZONTAL AXIS WIND TURBINESWIND ENERGYhttps://purl.org/becyt/ford/2.3https://purl.org/becyt/ford/2In this paper we investigate the sources of cyclic loads affecting the structural solicitation and power production in Horizontal Axis Wind Turbines, in particular the role of blade-section misalignment. These loads could become determinant in future designs of extra-large turbines, limiting lifespan due to fatigue of structural and mechanical components. Gravity loads would also become more significant in future up-scaled machines due to the square-cube law relation between energy capture and rotor mass. We identify the different constructive factors and physical mechanisms which constitute the sources of the cyclic loads on the rotor, and present a methodology to analyze the contribution of each one of them. We propose six hypothetical scenarios to illustrate the individual effect of each of the aforementioned sources on the aerodynamic and structural variables that characterize the operational state of the turbine. We analyze the evolution of aerodynamic variables which characterize rotor interference and its relation with the angle of attack on the blade sections. Structural variables are also analyzed, showing the contribution of both aerodynamic and gravity loads, inducing out-of-plane bending and torsional oscillations, and how these could be activated by bend-twist coupling on the blade structural response.Fil: Otero, Alejandro Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Simulación Computacional para Aplicaciones Tecnológicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina. Michigan Technological University; Estados UnidosFil: Ponta, Fernando Luis. Michigan Technological University; Estados UnidosPergamon-Elsevier Science Ltd2018-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/85841Otero, Alejandro Daniel; Ponta, Fernando Luis; On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment; Pergamon-Elsevier Science Ltd; Renewable Energy; 117; 3-2018; 275-2860960-1481CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0960148117310121info:eu-repo/semantics/altIdentifier/doi/10.1016/j.renene.2017.10.049info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:49:13Zoai:ri.conicet.gov.ar:11336/85841instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:49:14.023CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment
title On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment
spellingShingle On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment
Otero, Alejandro Daniel
AERODYNAMIC MISALIGNMENT
CYCLIC LOADS
HORIZONTAL AXIS WIND TURBINES
WIND ENERGY
title_short On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment
title_full On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment
title_fullStr On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment
title_full_unstemmed On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment
title_sort On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment
dc.creator.none.fl_str_mv Otero, Alejandro Daniel
Ponta, Fernando Luis
author Otero, Alejandro Daniel
author_facet Otero, Alejandro Daniel
Ponta, Fernando Luis
author_role author
author2 Ponta, Fernando Luis
author2_role author
dc.subject.none.fl_str_mv AERODYNAMIC MISALIGNMENT
CYCLIC LOADS
HORIZONTAL AXIS WIND TURBINES
WIND ENERGY
topic AERODYNAMIC MISALIGNMENT
CYCLIC LOADS
HORIZONTAL AXIS WIND TURBINES
WIND ENERGY
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.3
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In this paper we investigate the sources of cyclic loads affecting the structural solicitation and power production in Horizontal Axis Wind Turbines, in particular the role of blade-section misalignment. These loads could become determinant in future designs of extra-large turbines, limiting lifespan due to fatigue of structural and mechanical components. Gravity loads would also become more significant in future up-scaled machines due to the square-cube law relation between energy capture and rotor mass. We identify the different constructive factors and physical mechanisms which constitute the sources of the cyclic loads on the rotor, and present a methodology to analyze the contribution of each one of them. We propose six hypothetical scenarios to illustrate the individual effect of each of the aforementioned sources on the aerodynamic and structural variables that characterize the operational state of the turbine. We analyze the evolution of aerodynamic variables which characterize rotor interference and its relation with the angle of attack on the blade sections. Structural variables are also analyzed, showing the contribution of both aerodynamic and gravity loads, inducing out-of-plane bending and torsional oscillations, and how these could be activated by bend-twist coupling on the blade structural response.
Fil: Otero, Alejandro Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Simulación Computacional para Aplicaciones Tecnológicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina. Michigan Technological University; Estados Unidos
Fil: Ponta, Fernando Luis. Michigan Technological University; Estados Unidos
description In this paper we investigate the sources of cyclic loads affecting the structural solicitation and power production in Horizontal Axis Wind Turbines, in particular the role of blade-section misalignment. These loads could become determinant in future designs of extra-large turbines, limiting lifespan due to fatigue of structural and mechanical components. Gravity loads would also become more significant in future up-scaled machines due to the square-cube law relation between energy capture and rotor mass. We identify the different constructive factors and physical mechanisms which constitute the sources of the cyclic loads on the rotor, and present a methodology to analyze the contribution of each one of them. We propose six hypothetical scenarios to illustrate the individual effect of each of the aforementioned sources on the aerodynamic and structural variables that characterize the operational state of the turbine. We analyze the evolution of aerodynamic variables which characterize rotor interference and its relation with the angle of attack on the blade sections. Structural variables are also analyzed, showing the contribution of both aerodynamic and gravity loads, inducing out-of-plane bending and torsional oscillations, and how these could be activated by bend-twist coupling on the blade structural response.
publishDate 2018
dc.date.none.fl_str_mv 2018-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/85841
Otero, Alejandro Daniel; Ponta, Fernando Luis; On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment; Pergamon-Elsevier Science Ltd; Renewable Energy; 117; 3-2018; 275-286
0960-1481
CONICET Digital
CONICET
url http://hdl.handle.net/11336/85841
identifier_str_mv Otero, Alejandro Daniel; Ponta, Fernando Luis; On the sources of cyclic loads in horizontal-axis wind turbines: The role of blade-section misalignment; Pergamon-Elsevier Science Ltd; Renewable Energy; 117; 3-2018; 275-286
0960-1481
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0960148117310121
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.renene.2017.10.049
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.069144

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