A computationally efficient finite element model for the analysis of the non-linear bending behaviour of a dynamic submarine power cable

Ménard, Fabien; Cartraud, Patrice

doi:10.1016/j.marstruc.2023.103465

Cited by 8 publications

(3 citation statements)

References 41 publications

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“…Fretting and wear damages to the conductors' wires, caused primarily by cyclic bending loads, have been recognized as a challenge for marine cables with metallic armor [18][19][20][21][22][23]. The current study showed that this is also challenging for marine cables without metallic armor.…”

Section: Discussionmentioning

confidence: 65%

“…They also provide mechanical properties that reduce the risk of structural integrity degradation if appropriately designed, such as fatigue, fretting, and wear caused by cyclic loading conditions from the cable's motions. Many studies in the literature have presented results from numerical simulations and experiments of armored dynamic power cables [18][19][20][21][22][23]. Most of them emphasized bending-induced loading conditions and fatigue experiments since this loading mode causes wear and fretting damage to the cable's parts and components.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of the Mechanical Properties of Low Stiffness Marine Power Cables through Tension, Bending, Torsion, and Fatigue Testing

Ringsberg,

Dieng,

et al. 2023

JMSE

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The exploitation and harnessing of offshore marine renewable energy have led to an increased demand for reliable marine power cables with long service lives. These cables constitute a considerable share of the total installation cost of offshore renewable energy facilities and have high maintenance and repair costs. The critical characteristics of these power cables must be determined to reduce the risk of exceeding their ultimate strength or fatigue life, which can result in unwanted and unexpected failures. This study investigates dynamic marine power cables that are suitable for application in devices that harness energy from ocean currents, waves, and tides. Tension, bending, torsion, and fatigue tests were conducted on three dynamic power cables (1 kV, 3.6 kV, and 24 kV) that have high flexibility, i.e., low mechanical stiffness. The specimen lengths and axial pretension force were varied during the tests. The results are discussed in terms of the mechanical fatigue degradation and ultimate design load, and the key observations and lessons learned from the tests are clarified. The study’s main contribution is the results from physical component testing of the dynamic marine power cables without metallic armors, which can be used to calibrate numerical models of this type of dynamic marine power cable in the initial design of, e.g., inter-array cables between floating wave energy converters. The benefits offered by this type of cable and the importance of the results for creating reliable numerical simulation models in the future are highlighted.

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Section: Discussionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Characterization of the Mechanical Properties of Low Stiffness Marine Power Cables through Tension, Bending, Torsion, and Fatigue Testing

Ringsberg,

Dieng,

et al. 2023

JMSE

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show abstract

“…Their method was based on the homogenization theory of periodic structures which exploited the helical symmetry of the wire. Ménard and Cartraud [33] applied the method to simulate the local stress state in a three-core cable subjected to cyclic bending loading. The development of specialized FEM formulations and hierarchical multilayer models that incorporate concepts of homogenization and advanced friction models enabled the creation of very efficient and highly accurate analysis programs such as Helica (DNV [34]) and UFLEX (SINTEF [35]).…”

Section: Introductionmentioning

confidence: 99%

Reference Power Cable Models for Floating Offshore Wind Applications

Janocha,

Ong,

Lee

et al. 2024

Sustainability

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The present study aims to address the knowledge gaps in dynamic power cable designs suitable for large floating wind turbines and to develop three baseline power cable designs. The study includes a detailed database of structural and mechanical properties for three reference cable models rated at 33 kV, 66 kV, and 132 kV to be readily used in global dynamic response simulations. Structural properties are obtained from finite element method (FEM) models of respective cable cross-sections built in UFLEX v2.8.9—a non-linear stress analysis program. Extensive mesh sensitivity studies are performed to ensure the accuracy of the predicted structural properties. The cable’s structural design is investigated using global response simulations of an OC3 5MW reference wind turbine coupled with the dynamic power cable in a lazy wave configuration. The feasibility of the present reference cable in floating offshore wind applications is assessed through a simplified analysis of cable fatigue life and structural integrity analysis of the cable in extreme environmental conditions. The analysis results suggest that the dynamic power cable does not significantly affect the response characteristics of the floating wind turbine in the analyzed lazy wave configuration. Furthermore, a simplified fatigue analysis demonstrates that the proposed cable design can sustain representative environmental loading scenarios and shows favorable dynamic performance in a lazy wave configuration.

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Development of an effective modeling method for the mechanical analysis of three-core submarine power cables under tension

Fang,

Li,

Jiang

et al. 2024

Engineering Structures

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A computationally efficient finite element model for the analysis of the non-linear bending behaviour of a dynamic submarine power cable

Cited by 8 publications

References 41 publications

Characterization of the Mechanical Properties of Low Stiffness Marine Power Cables through Tension, Bending, Torsion, and Fatigue Testing

Characterization of the Mechanical Properties of Low Stiffness Marine Power Cables through Tension, Bending, Torsion, and Fatigue Testing

Reference Power Cable Models for Floating Offshore Wind Applications

Development of an effective modeling method for the mechanical analysis of three-core submarine power cables under tension

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