Large scale mooring line experiments and comparison with a fully dynamic simulation program with importance to WEC installation

Lars Johanning; George H. Smith; Colin Bullen

Large scale mooring line experiments and comparison with a fully dynamic simulation program with importance to WEC installation

Lars Johanning^*
, George H. Smith
, Colin Bullen

^*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

Large scale experiments with an 82t vessel moored on a 22mm single chain at a mean water depth of 24m were performed at Scapa Flow (Orkney) to study mooring conditions for the installation of wave energy converters (WECs). Tension and response behaviour were found for various pre-tension conditions using horizontal and axial load measurement techniques and a GPS system for tracking the motion of the vessel. The pre-tension conditions were chosen to provide a slack, fully lifted and taut mooring line arrangement. The study also includes a numerical model of the experiments by applying line properties, installation conditions and the displacement measurements to the simulation and calculating the resulting tensions. The experimental problems that were overcome to obtain meaningful results from large scale experiments under real sea conditions are explained and the importance of mooring line dynamics for WECs is discussed.

Original language	English
Title of host publication	Proceedings of The Seventeenth 2007 International Offshore and Polar Engineering Conference, ISOPE 2007
Pages	455-462
Number of pages	8
Publication status	Published - 2007
Event	17th 2007 International Offshore and Polar Engineering Conference, ISOPE 2007 - Lisbon, Portugal Duration: 1 Jul 2007 → 6 Jul 2007

Publication series

Name	Proceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)	1098-6189
ISSN (Electronic)	1555-1792

Conference

Conference	17th 2007 International Offshore and Polar Engineering Conference, ISOPE 2007
Country/Territory	Portugal
City	Lisbon
Period	1/07/07 → 6/07/07

UN SDGs

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

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Energy Engineering and Power Technology
Ocean Engineering
Mechanical Engineering

Keywords

Dynamic mooring line behaviour
Large scale experiments
Wave energy converter

Cite this

Johanning, L., Smith, G. H., & Bullen, C. (2007). Large scale mooring line experiments and comparison with a fully dynamic simulation program with importance to WEC installation. In Proceedings of The Seventeenth 2007 International Offshore and Polar Engineering Conference, ISOPE 2007 (pp. 455-462). (Proceedings of the International Offshore and Polar Engineering Conference).

Johanning, Lars ; Smith, George H. ; Bullen, Colin. / Large scale mooring line experiments and comparison with a fully dynamic simulation program with importance to WEC installation. Proceedings of The Seventeenth 2007 International Offshore and Polar Engineering Conference, ISOPE 2007. 2007. pp. 455-462 (Proceedings of the International Offshore and Polar Engineering Conference).

@inproceedings{64b6bb55bb174655896f0262540ee57b,

title = "Large scale mooring line experiments and comparison with a fully dynamic simulation program with importance to WEC installation",

abstract = "Large scale experiments with an 82t vessel moored on a 22mm single chain at a mean water depth of 24m were performed at Scapa Flow (Orkney) to study mooring conditions for the installation of wave energy converters (WECs). Tension and response behaviour were found for various pre-tension conditions using horizontal and axial load measurement techniques and a GPS system for tracking the motion of the vessel. The pre-tension conditions were chosen to provide a slack, fully lifted and taut mooring line arrangement. The study also includes a numerical model of the experiments by applying line properties, installation conditions and the displacement measurements to the simulation and calculating the resulting tensions. The experimental problems that were overcome to obtain meaningful results from large scale experiments under real sea conditions are explained and the importance of mooring line dynamics for WECs is discussed.",

keywords = "Dynamic mooring line behaviour, Large scale experiments, Wave energy converter",

author = "Lars Johanning and Smith, \{George H.\} and Colin Bullen",

year = "2007",

language = "English",

isbn = "1880653680",

series = "Proceedings of the International Offshore and Polar Engineering Conference",

pages = "455--462",

booktitle = "Proceedings of The Seventeenth 2007 International Offshore and Polar Engineering Conference, ISOPE 2007",

note = "17th 2007 International Offshore and Polar Engineering Conference, ISOPE 2007 ; Conference date: 01-07-2007 Through 06-07-2007",

}

Johanning, L, Smith, GH & Bullen, C 2007, Large scale mooring line experiments and comparison with a fully dynamic simulation program with importance to WEC installation. in Proceedings of The Seventeenth 2007 International Offshore and Polar Engineering Conference, ISOPE 2007. Proceedings of the International Offshore and Polar Engineering Conference, pp. 455-462, 17th 2007 International Offshore and Polar Engineering Conference, ISOPE 2007, Lisbon, Portugal, 1/07/07.

Large scale mooring line experiments and comparison with a fully dynamic simulation program with importance to WEC installation. / Johanning, Lars; Smith, George H.; Bullen, Colin.
Proceedings of The Seventeenth 2007 International Offshore and Polar Engineering Conference, ISOPE 2007. 2007. p. 455-462 (Proceedings of the International Offshore and Polar Engineering Conference).

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

TY - GEN

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AU - Johanning, Lars

AU - Smith, George H.

AU - Bullen, Colin

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AB - Large scale experiments with an 82t vessel moored on a 22mm single chain at a mean water depth of 24m were performed at Scapa Flow (Orkney) to study mooring conditions for the installation of wave energy converters (WECs). Tension and response behaviour were found for various pre-tension conditions using horizontal and axial load measurement techniques and a GPS system for tracking the motion of the vessel. The pre-tension conditions were chosen to provide a slack, fully lifted and taut mooring line arrangement. The study also includes a numerical model of the experiments by applying line properties, installation conditions and the displacement measurements to the simulation and calculating the resulting tensions. The experimental problems that were overcome to obtain meaningful results from large scale experiments under real sea conditions are explained and the importance of mooring line dynamics for WECs is discussed.

KW - Dynamic mooring line behaviour

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KW - Wave energy converter

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M3 - Conference proceedings published in a book

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SN - 1880653680

SN - 9781880653685

T3 - Proceedings of the International Offshore and Polar Engineering Conference

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BT - Proceedings of The Seventeenth 2007 International Offshore and Polar Engineering Conference, ISOPE 2007

T2 - 17th 2007 International Offshore and Polar Engineering Conference, ISOPE 2007

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ER -

Large scale mooring line experiments and comparison with a fully dynamic simulation program with importance to WEC installation

Abstract

Publication series

Conference

UN SDGs

ASJC Scopus subject areas

Keywords

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Cite this