An improved theory in the determination of aerodynamic damping for a horizontal axis wind turbine (HAWT)

Chen, Y; Wu, D; Yu, Y; Gao, W

An improved theory in the determination of aerodynamic damping for a horizontal axis wind turbine (HAWT)

Chen, Y Wu, D

Yu, Y Gao, W

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Journal of Wind Engineering and Industrial Aerodynamics, 2021, 213, pp. 104619
Issue Date:: 2021-06-01

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Field	Value	Language
dc.contributor.author	Chen, Y
dc.contributor.author	Wu, D https://orcid.org/0000-0002-7284-5024
dc.contributor.author	Yu, Y
dc.contributor.author	Gao, W
dc.date.accessioned	2022-03-10T22:07:07Z
dc.date.available	2022-03-10T22:07:07Z
dc.date.issued	2021-06-01
dc.identifier.citation	Journal of Wind Engineering and Industrial Aerodynamics, 2021, 213, pp. 104619
dc.identifier.issn	0167-6105
dc.identifier.uri	http://hdl.handle.net/10453/155143
dc.description.abstract	The aerodynamic damping reflects the aero-structure interaction and is intrinsically involved in a fully coupled turbine. However, it is still of great importance to theoretically quantify the aerodynamic damping of a HAWT in some cases. The existing theory can reasonably characterize the aerodynamic damping level of a HAWT with rigid blades, minute shaft tilt and yaw angles, while certain discrepancies were observed when compared with either experimental or numerical damping results of a more realistic turbine. This study aims to provide an improved theory to incorporate more realistic conditions (i.e., blade flexibility, shaft tilt and yaw angle) in aerodynamic damping estimation. Good agreements are found between the proposed theory and numerical results with varied influential factors, upon which modification factors against the original theory are created and discussed. Finally, the aerodynamic damping of tower is determined and included in a decoupled fatigue analysis framework to demonstrate the potential application of this improved aerodynamic damping theory.
dc.language	en
dc.publisher	Elsevier BV
dc.relation	http://purl.org/au-research/grants/arc/IH150100006
dc.relation.ispartof	Journal of Wind Engineering and Industrial Aerodynamics
dc.relation.isbasedon	10.1016/j.jweia.2021.104619
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0911 Maritime Engineering, 0913 Mechanical Engineering
dc.subject.classification	Civil Engineering
dc.title	An improved theory in the determination of aerodynamic damping for a horizontal axis wind turbine (HAWT)
dc.type	Journal Article
utslib.citation.volume	213
utslib.for	0905 Civil Engineering
utslib.for	0911 Maritime Engineering
utslib.for	0913 Mechanical Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2022-03-10T22:07:03Z
pubs.publication-status	Published
pubs.volume	213

Abstract:

The aerodynamic damping reflects the aero-structure interaction and is intrinsically involved in a fully coupled turbine. However, it is still of great importance to theoretically quantify the aerodynamic damping of a HAWT in some cases. The existing theory can reasonably characterize the aerodynamic damping level of a HAWT with rigid blades, minute shaft tilt and yaw angles, while certain discrepancies were observed when compared with either experimental or numerical damping results of a more realistic turbine. This study aims to provide an improved theory to incorporate more realistic conditions (i.e., blade flexibility, shaft tilt and yaw angle) in aerodynamic damping estimation. Good agreements are found between the proposed theory and numerical results with varied influential factors, upon which modification factors against the original theory are created and discussed. Finally, the aerodynamic damping of tower is determined and included in a decoupled fatigue analysis framework to demonstrate the potential application of this improved aerodynamic damping theory.

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http://hdl.handle.net/10453/155143