Experimental Comparison of Dynamic Responses of a Tension Moored Floating Wind Turbine Platform with and without Spring Dampers

11th International Conference on Damage Assessment of Structures

物理学;材料科学

Wright, C.^1 ; O'Sullivan, K.^2 ; Murphy, J.^1 ; Pakrashi, V.^3

MaREI/Beaufort Research, Environmental Research Institute, University College Cork, Pouladuff Road, Cork, Ireland^1

Black and Veatch Ltd, Grosvenor House, 69 London Road, Redhill, Surrey

RH1 1LQ, United Kingdom^2

Dynamical Systems and Risk Laboratory, School of Engineering, University College Cork, Ireland^3

关键词: Complex dynamics;    Experimental comparison;    Extreme environment;    Floating foundations;    Floating wind turbines;    Foundation types;    Physical model testing;    Structural condition;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/628/1/012056/pdf
DOI  :  10.1088/1742-6596/628/1/012056

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The offshore wind industry is rapidly maturing and is now expanding to more extreme environments in deeper water and farther from shore. To date fixed foundation types (i.e. monopoles, jackets) have been primarily used but become uneconomical in water depths greater than 50m. Floating foundations have more complex dynamics but at the moment no design has reached commercialization, although a number of devices are being tested at prototype stage. The development of concepts is carried out through physical model testing of scaled devices such that to better understand the dynamics of the system and validate numerical models. This paper investigates the testing of a scale model of a tension moored wind turbine at two different scales and in the presence and absence of a spring damper controlling its dynamic response. The models were tested under combined wave and wind thrust loading conditions. The analysis compares the motions of the platform at different scales and structural conditions through RAO, testing a mooring spring damper for load reductions.