Robust contact and friction model for the fatigue estimate of a wire rope in the mooring line of a floating offshore wind turbine

authored by: F. Bussolati, P. A. Guidault, M. L.E. Guiton, O. Allix, Peter Wriggers
Abstract: Station keeping of Floating Wind Turbine (FOWT) is ensured by mooring lines. They may be composed of steel wire ropes, which are particularly difficult to design against the Fatigue Limit State, because the standard Tension-Tension rules cannot capture accurately the influence of the frictional contact interactions between the wires when the rope is bent. We propose here a new model linking the tension and curvature time series computed by a global scale model to a micro-scale model simulating the fretting fatigue at an inter-wire contact location. This new model of a detailed part of rope relies on the use of a new contact element, which allows to gain robustness and CPU time. This is of crucial importance for the large number of simulations required by a fatigue life estimate. A case study is presented considering a FOWT equipped with three pairs of catenary mooring lines. The computed tension and curvature obtained for a severe sea state are transferred to the detailed model of the wire rope, with periodic boundary conditions representing the rope continuity. The time series of sliding and contact forces are finally reported at different locations within the rope, providing possible input data for a fretting fatigue analysis.
Organisation(s): Institute of Continuum Mechanics
External Organisation(s): École normale supérieure Paris-Saclay (ENS Paris-Saclay)
IFP Energies nouvelles (IFPEN)
Type: Contribution to book/anthology
Pages: 249-270
No. of pages: 22
Publication date: 04.03.2020
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Mechanical Engineering, Computational Theory and Mathematics
Electronic version(s): https://doi.org/10.1007/978-3-030-38156-1_13 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inbook{60a42064b5c64e21973dd038a12f360d,
title = "Robust contact and friction model for the fatigue estimate of a wire rope in the mooring line of a floating offshore wind turbine",
abstract = "Station keeping of Floating Wind Turbine (FOWT) is ensured by mooring lines. They may be composed of steel wire ropes, which are particularly difficult to design against the Fatigue Limit State, because the standard Tension-Tension rules cannot capture accurately the influence of the frictional contact interactions between the wires when the rope is bent. We propose here a new model linking the tension and curvature time series computed by a global scale model to a micro-scale model simulating the fretting fatigue at an inter-wire contact location. This new model of a detailed part of rope relies on the use of a new contact element, which allows to gain robustness and CPU time. This is of crucial importance for the large number of simulations required by a fatigue life estimate. A case study is presented considering a FOWT equipped with three pairs of catenary mooring lines. The computed tension and curvature obtained for a severe sea state are transferred to the detailed model of the wire rope, with periodic boundary conditions representing the rope continuity. The time series of sliding and contact forces are finally reported at different locations within the rope, providing possible input data for a fretting fatigue analysis.",
author = "F. Bussolati and Guidault, {P. A.} and Guiton, {M. L.E.} and O. Allix and Peter Wriggers",
note = "Funding information: The authors acknowledge Baudin Chateauneuf company for having provided the data that inspired the six-layer wire rope model. Principia and FOWT team at IFPEN, in particular Y. Poirette, are thanked for their help in defining the DeeplinesTM model. The authors also thank M. Martinez of IFPEN for his help to define the Abaqus/Standard{\textregistered} boundary value problem. This work has been realized during the doctoral thesis of the first author which has been funded by IFP Energies nouvelles.",
year = "2020",
month = mar,
day = "4",
doi = "10.1007/978-3-030-38156-1_13",
language = "English",
isbn = "9783030381554",
series = "Lecture Notes in Applied and Computational Mechanics",
publisher = "Springer Nature",
pages = "249--270",
booktitle = "Virtual design and validation",
address = "United States",
}