Demonstration of the intelligent mooring system for floating offshore wind turbines

Magnus J. Harrold; Philipp R. Thies; Peter Halswell; Lars Johanning; David Newsam; Claudio Bittencourt Ferreira

doi:10.1115/IOWTC2019-7544

Demonstration of the intelligent mooring system for floating offshore wind turbines

Magnus J. Harrold^*
, Philipp R. Thies
, Peter Halswell
, Lars Johanning
, David Newsam
, Claudio Bittencourt Ferreira

^*Corresponding author for this work

School of Engineering, Computing and Mathematics

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings published in a book › peer-review

Abstract

Existing mooring systems for floating offshore wind turbines are largely based on designs from the oil and gas industry. Even though these can ensure the safe station keeping of the floating wind platform, the design of the mooring system is currently largely conservative, leading to additional expense in an industry striving to achieve cost reduction. Recent interest in the usage of mooring materials with non-linear stiffness has shown that they have the potential to reduce peak line loads, ultimately reducing cost. This paper reports on the combined physical testing and numerical modeling of a hydraulic-based mooring component with these characteristics. The results suggest that the inclusion of the component as part of the OC4 semi-submersible platform can reduce the peak line loads by 10%. The paper also discusses a number of challenges associated with modeling and testing dynamic mooring materials.

Original language	English
Title of host publication	ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019
Publisher	The American Society of Mechanical Engineers(ASME)
ISBN (Electronic)	9780791859353
DOIs	https://doi.org/10.1115/IOWTC2019-7544
Publication status	Published - 2019
Event	ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019 - St. Julian's, Malta Duration: 3 Nov 2019 → 6 Nov 2019

Publication series

Name	ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019

Conference

Conference	ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019
Country/Territory	Malta
City	St. Julian's
Period	3/11/19 → 6/11/19

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment

Keywords

Floating wind
Non-linear mooring systems
Numerical modeling
Peak load reduction
Prototype testing

Access to Document

10.1115/IOWTC2019-7544

Cite this

Harrold, M. J., Thies, P. R., Halswell, P., Johanning, L., Newsam, D., & Ferreira, C. B. (2019). Demonstration of the intelligent mooring system for floating offshore wind turbines. In ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019 (ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019). The American Society of Mechanical Engineers(ASME). https://doi.org/10.1115/IOWTC2019-7544

@inproceedings{7fda0b5b57df4f878ee646f4bec53d76,

title = "Demonstration of the intelligent mooring system for floating offshore wind turbines",

abstract = "Existing mooring systems for floating offshore wind turbines are largely based on designs from the oil and gas industry. Even though these can ensure the safe station keeping of the floating wind platform, the design of the mooring system is currently largely conservative, leading to additional expense in an industry striving to achieve cost reduction. Recent interest in the usage of mooring materials with non-linear stiffness has shown that they have the potential to reduce peak line loads, ultimately reducing cost. This paper reports on the combined physical testing and numerical modeling of a hydraulic-based mooring component with these characteristics. The results suggest that the inclusion of the component as part of the OC4 semi-submersible platform can reduce the peak line loads by 10\%. The paper also discusses a number of challenges associated with modeling and testing dynamic mooring materials.",

keywords = "Floating wind, Non-linear mooring systems, Numerical modeling, Peak load reduction, Prototype testing",

author = "Harrold, \{Magnus J.\} and Thies, \{Philipp R.\} and Peter Halswell and Lars Johanning and David Newsam and Ferreira, \{Claudio Bittencourt\}",

note = "Publisher Copyright: Copyright {\textcopyright} 2019 ASME.; ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019 ; Conference date: 03-11-2019 Through 06-11-2019",

year = "2019",

doi = "10.1115/IOWTC2019-7544",

language = "English",

series = "ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019",

publisher = "The American Society of Mechanical Engineers(ASME)",

booktitle = "ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019",

address = "United States",

}

Harrold, MJ, Thies, PR, Halswell, P, Johanning, L, Newsam, D & Ferreira, CB 2019, Demonstration of the intelligent mooring system for floating offshore wind turbines. in ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019. ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019, The American Society of Mechanical Engineers(ASME), ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019, St. Julian's, Malta, 3/11/19. https://doi.org/10.1115/IOWTC2019-7544

Demonstration of the intelligent mooring system for floating offshore wind turbines. / Harrold, Magnus J.; Thies, Philipp R.; Halswell, Peter et al.
ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019. The American Society of Mechanical Engineers(ASME), 2019. (ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings published in a book › peer-review

TY - GEN

T1 - Demonstration of the intelligent mooring system for floating offshore wind turbines

AU - Harrold, Magnus J.

AU - Thies, Philipp R.

AU - Halswell, Peter

AU - Johanning, Lars

AU - Newsam, David

AU - Ferreira, Claudio Bittencourt

PY - 2019

Y1 - 2019

N2 - Existing mooring systems for floating offshore wind turbines are largely based on designs from the oil and gas industry. Even though these can ensure the safe station keeping of the floating wind platform, the design of the mooring system is currently largely conservative, leading to additional expense in an industry striving to achieve cost reduction. Recent interest in the usage of mooring materials with non-linear stiffness has shown that they have the potential to reduce peak line loads, ultimately reducing cost. This paper reports on the combined physical testing and numerical modeling of a hydraulic-based mooring component with these characteristics. The results suggest that the inclusion of the component as part of the OC4 semi-submersible platform can reduce the peak line loads by 10%. The paper also discusses a number of challenges associated with modeling and testing dynamic mooring materials.

AB - Existing mooring systems for floating offshore wind turbines are largely based on designs from the oil and gas industry. Even though these can ensure the safe station keeping of the floating wind platform, the design of the mooring system is currently largely conservative, leading to additional expense in an industry striving to achieve cost reduction. Recent interest in the usage of mooring materials with non-linear stiffness has shown that they have the potential to reduce peak line loads, ultimately reducing cost. This paper reports on the combined physical testing and numerical modeling of a hydraulic-based mooring component with these characteristics. The results suggest that the inclusion of the component as part of the OC4 semi-submersible platform can reduce the peak line loads by 10%. The paper also discusses a number of challenges associated with modeling and testing dynamic mooring materials.

KW - Floating wind

KW - Non-linear mooring systems

KW - Numerical modeling

KW - Peak load reduction

KW - Prototype testing

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M3 - Conference proceedings published in a book

AN - SCOPUS:85084162543

T3 - ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019

BT - ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019

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Harrold MJ, Thies PR, Halswell P, Johanning L, Newsam D, Ferreira CB. Demonstration of the intelligent mooring system for floating offshore wind turbines. In ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019. The American Society of Mechanical Engineers(ASME). 2019. (ASME 2019 2nd International Offshore Wind Technical Conference, IOWTC 2019). doi: 10.1115/IOWTC2019-7544

Demonstration of the intelligent mooring system for floating offshore wind turbines

Abstract

Publication series

Conference

UN SDGs

ASJC Scopus subject areas

Keywords

Access to Document

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