Dynamic response mitigation of floating wind turbine platforms using tuned liquid column dampers

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Title: Dynamic response mitigation of floating wind turbine platforms using tuned liquid column dampers
Authors: Jaksic, Vesna
Wright, C.S.
Murphy, J.
Pakrashi, Vikram
et al.
Permanent link: http://hdl.handle.net/10197/10411
Date: 28-Feb-2015
Online since: 2019-05-13T10:30:00Z
Abstract: In this paper, we experimentally study and compare the effects of three combinations of multiple tuned liquid column dampers (MTLCDs) on the dynamic performance of a model floating tension-leg platform (TLP) structure in a wave basin. The structural stability and safety of the floating structure during operation and maintenance is of concern for the performance of a renewable energy device that it might be supporting. The dynamic responses of the structure should thus be limited for these renewable energy devices to perform as intended. This issue is particularly important during the operation of a TLP in extreme weather conditions. Tuned liquid column dampers (TLCDs) can use the power of sloshing water to reduce surge motions of a floating TLP exposed to wind and waves. This paper demonstrates the potential of MTLCDs in reducing dynamic responses of a scaled TLP model through an experimental study. The potential of using output-only statistical markers for monitoring changes in structural conditions is also investigated through the application of a delay vector variance (DVV) marker for different conditions of control for the experiments.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: The Royal Society
Journal: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume: 373
Start page: 20140079
End page: 20140079
Copyright (published version): 2015 the Authors
Keywords: Offshore wind energyTension-leg platformStructural dynamicsWave-induced vibrationsSurge motionsTuned liquid column damper
DOI: 10.1098/rsta.2014.0079
Language: en
Status of Item: Peer reviewed
Appears in Collections:Mechanical & Materials Engineering Research Collection

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