Title

Tuned Liquid Column Damper Based Reduction Ofic DynamResponses of Scaled Offshore Platforms in Different Ocean Wave Basins

Authors

Deirdre O’Donnel, Dynamical Systems and Risk Laboratory, School of Mechanical and Materials Engineering, University College Dublin, Ireland; Marine and Renewable Energy Ireland (MaREI), University College Dublin (UCD), Ireland.
Jimmy Murphy, Department of Civil, Structural and Environmental Engineering, University College Cork (UCC), Ireland; Marine and Renewable Energy Ireland (MaREI), Environmental Research Institute, University College Cork (UCC), Ireland.
Cian Desmond, Marine and Renewable Energy Ireland (MaREI), Environmental Research Institute, University College Cork (UCC), Ireland.Show/hideRemove author
Vesna Jaksic, Sustainable Infrastructure Research & Innovation Group (SIRIG); Civil, Structural and Environmental Engineering Department, Cork Institute of Technology, Ireland.Follow
Vikram Pakrashi, Dynamical Systems and Risk Laboratory, School of Mechanical and Materials Engineering, University College Dublin, Ireland; Marine and Renewable Energy Ireland (MaREI), University College Dublin (UCD), Ireland.

ORCID

0000-0002-0178-5546

Document Type

Conference Object

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 License.

Disciplines

Civil and Environmental Engineering

Publication Details

Journal of Physics: Conference Series (JPCS), 12th International Conference on Damage Assessment of Structures 10–12 July 2017, Kitakyushu, Japan.

@ Authors 2017

Abstract

Control of dynamic responses of renewable energy device platforms is important for their performance, safe operation and efficiency over their lifetime under regular and extreme wave conditions. Tuned Liquid Column Dampers (TLCDs) have been recently considered as a viable passive control mechanism in this regard but limited information is available in relation to their experimental performance. This paper compares scaled experiments conducted in two different ocean wave basins where floating offshore platforms were retrofitted with multiple TLCDs (MTLCDs). Performance of such MTLCDs in these scaled ocean wave basins are evaluated and compared considering control of dynamic responses for a specific objective. This paper shows the potential of MTLCDs to reduce motions in offshore platforms for different designs and platforms of MTLCDs and provides a comparison of the levels of reduction of dynamic responses achieved. The performance of MTLCDs in different wave basins create an experimental evidence base behind the potential use of such solutions, the objectives of such use and highlight related challenges and limitations.

Recommended Citation

Deirdre O'Donnell et al 2017 J. Phys.: Conf. Ser. 842 012043