Fatigue load reductions in offshore wind turbine monopile foundations in co-located wind-wave arrays

Caitlyn Clark; Joey Velarde; Jannie Sønderkær Nielsen

doi:10.1115/IOWTC2018-1024

Fatigue load reductions in offshore wind turbine monopile foundations in co-located wind-wave arrays

Caitlyn Clark, Joey Velarde, Jannie Sønderkær Nielsen

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

Abstract

As offshore wind turbines (OWTs) increase in size and are placed farther offshore, hydrodynamic loads have increased contribution to total load, resulting in fatigue limit states becoming more important to consider in structural design. Previous literature shows that placing wave energy converters (WECs) peripherally to an OWT array results in a milder wave climate within the array. This reduction could affect the wave loads and fatigue damage of OWT support structures. In this exploratory study, the effect of peripherally-distributing WECs in front of a fixed-bottom OWT on the fatigue of the OWT monopile support structure is investigated. A method for quantifying relative sea state reductions from WECs are applied, and fully-coupled timedomain fatigue analyses are performed for a 10 MW reference offshore wind turbine. Results indicate that a single WEC and a WEC array can lead to up to 8% and 10% fatigue load reduction in unidirectional wave cases, respectively. Copyright © 2018 by ASME

Original language	English
Title of host publication	Proceedings of ASME 2018 1st International Offshore Wind Technical Conference
Number of pages	10
Publisher	American Society of Mechanical Engineers
Publication date	2018
Pages	V001T01A037
Article number	IOWTC2018-1024
ISBN (Electronic)	978-0-7918-5197-5
DOIs	https://doi.org/10.1115/IOWTC2018-1024
Publication status	Published - 2018
Event	ASME 2018 1st International Offshore Wind Technical Conference, IOWTC 2018 - San Francisco, United States Duration: 4 Nov 2018 → 7 Nov 2018

Conference

Conference	ASME 2018 1st International Offshore Wind Technical Conference, IOWTC 2018
Country/Territory	United States
City	San Francisco
Period	04/11/2018 → 07/11/2018
Sponsor	Ocean, Offshore and Arctic Engineering Division

Keywords

Fatigue
Stress
Offshore wind turbines
Wind waves

Access to Document

10.1115/IOWTC2018-1024

AUB Link

Search for the material in Aalborg University Library's search engine

Cite this

@inproceedings{ed9fc454325947bbb7d1b3ab323455d0,

title = "Fatigue load reductions in offshore wind turbine monopile foundations in co-located wind-wave arrays",

abstract = "As offshore wind turbines (OWTs) increase in size and are placed farther offshore, hydrodynamic loads have increased contribution to total load, resulting in fatigue limit states becoming more important to consider in structural design. Previous literature shows that placing wave energy converters (WECs) peripherally to an OWT array results in a milder wave climate within the array. This reduction could affect the wave loads and fatigue damage of OWT support structures. In this exploratory study, the effect of peripherally-distributing WECs in front of a fixed-bottom OWT on the fatigue of the OWT monopile support structure is investigated. A method for quantifying relative sea state reductions from WECs are applied, and fully-coupled timedomain fatigue analyses are performed for a 10 MW reference offshore wind turbine. Results indicate that a single WEC and a WEC array can lead to up to 8% and 10% fatigue load reduction in unidirectional wave cases, respectively. Copyright {\textcopyright} 2018 by ASME ",

keywords = "Fatigue, Stress, Offshore wind turbines, Wind waves, Fatigue, Stress, Offshore wind turbines, Wind waves",

author = "Caitlyn Clark and Joey Velarde and Nielsen, {Jannie S{\o}nderk{\ae}r}",

year = "2018",

doi = "10.1115/IOWTC2018-1024",

language = "English",

pages = "V001T01A037",

booktitle = "Proceedings of ASME 2018 1st International Offshore Wind Technical Conference",

publisher = "American Society of Mechanical Engineers",

address = "United States",

note = "ASME 2018 1st International Offshore Wind Technical Conference, IOWTC 2018 ; Conference date: 04-11-2018 Through 07-11-2018",

}

Clark, C, Velarde, J & Nielsen, JS 2018, Fatigue load reductions in offshore wind turbine monopile foundations in co-located wind-wave arrays. in Proceedings of ASME 2018 1st International Offshore Wind Technical Conference., IOWTC2018-1024, American Society of Mechanical Engineers, pp. V001T01A037, ASME 2018 1st International Offshore Wind Technical Conference, IOWTC 2018, San Francisco, United States, 04/11/2018. https://doi.org/10.1115/IOWTC2018-1024

Fatigue load reductions in offshore wind turbine monopile foundations in co-located wind-wave arrays. / Clark, Caitlyn; Velarde, Joey; Nielsen, Jannie Sønderkær.
Proceedings of ASME 2018 1st International Offshore Wind Technical Conference. American Society of Mechanical Engineers, 2018. p. V001T01A037 IOWTC2018-1024.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Fatigue load reductions in offshore wind turbine monopile foundations in co-located wind-wave arrays

AU - Clark, Caitlyn

AU - Velarde, Joey

AU - Nielsen, Jannie Sønderkær

PY - 2018

Y1 - 2018

N2 - As offshore wind turbines (OWTs) increase in size and are placed farther offshore, hydrodynamic loads have increased contribution to total load, resulting in fatigue limit states becoming more important to consider in structural design. Previous literature shows that placing wave energy converters (WECs) peripherally to an OWT array results in a milder wave climate within the array. This reduction could affect the wave loads and fatigue damage of OWT support structures. In this exploratory study, the effect of peripherally-distributing WECs in front of a fixed-bottom OWT on the fatigue of the OWT monopile support structure is investigated. A method for quantifying relative sea state reductions from WECs are applied, and fully-coupled timedomain fatigue analyses are performed for a 10 MW reference offshore wind turbine. Results indicate that a single WEC and a WEC array can lead to up to 8% and 10% fatigue load reduction in unidirectional wave cases, respectively. Copyright © 2018 by ASME

AB - As offshore wind turbines (OWTs) increase in size and are placed farther offshore, hydrodynamic loads have increased contribution to total load, resulting in fatigue limit states becoming more important to consider in structural design. Previous literature shows that placing wave energy converters (WECs) peripherally to an OWT array results in a milder wave climate within the array. This reduction could affect the wave loads and fatigue damage of OWT support structures. In this exploratory study, the effect of peripherally-distributing WECs in front of a fixed-bottom OWT on the fatigue of the OWT monopile support structure is investigated. A method for quantifying relative sea state reductions from WECs are applied, and fully-coupled timedomain fatigue analyses are performed for a 10 MW reference offshore wind turbine. Results indicate that a single WEC and a WEC array can lead to up to 8% and 10% fatigue load reduction in unidirectional wave cases, respectively. Copyright © 2018 by ASME

KW - Fatigue

KW - Stress

KW - Offshore wind turbines

KW - Wind waves

KW - Fatigue

KW - Stress

KW - Offshore wind turbines

KW - Wind waves

U2 - 10.1115/IOWTC2018-1024

DO - 10.1115/IOWTC2018-1024

M3 - Article in proceeding

SP - V001T01A037

BT - Proceedings of ASME 2018 1st International Offshore Wind Technical Conference

PB - American Society of Mechanical Engineers

T2 - ASME 2018 1st International Offshore Wind Technical Conference, IOWTC 2018

Y2 - 4 November 2018 through 7 November 2018

ER -

Fatigue load reductions in offshore wind turbine monopile foundations in co-located wind-wave arrays

Abstract

Conference

Keywords

Access to Document

AUB Link

Fingerprint

Cite this