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Models for design and fatigue analysis of dynamic power cables for wave energy converters
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
RISE - Research Institutes of Sweden, Safety and Transport, Safety.ORCID iD: 0000-0001-7182-0872
2019 (English)In: Trends in the Analysis and Design of Marine Structures - Proceedings of the 7th International Conference on Marine Structures, MARSTRUCT 2019, CRC Press/Balkema , 2019, p. 488-497Conference paper, Published paper (Refereed)
Abstract [en]

The current study presents a brief overview of a cable design model and simulation models that were developed for the design and fatigue analysis of dynamic cables. These models were applied on a subsea dynamic power cable with a design that is suitable for a floating point-absorbing Wave Energy Converter (WEC), where the cable must withstand cyclic loads imposed by the motions of the WEC, the waves and the ocean currents. An example of a verification study of the cable design model is presented where data from experiments in the literature was used. Further, a simulation model of a fatigue test rig for accelerated rotational bending is also presented. The results from the numerical simulations and the subsequent fatigue analyses are compared against results from experiments using the test rig. The influence of the dynamic effects and mechanical properties on the fatigue life of the cable is discussed.

Place, publisher, year, edition, pages
CRC Press/Balkema , 2019. p. 488-497
Keywords [en]
Digital arithmetic, Fatigue of materials, Fatigue testing, Ocean currents, Ocean structures, Telecommunication cables, Wave energy conversion, Absorbing waves, Dynamic effects, Fatigue analysis, Fatigue test rigs, Floating points, Rotational bending, Simulation model, Wave energy converters, Structural design
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-39682DOI: 10.1201/9780429298875-56Scopus ID: 2-s2.0-85068496718ISBN: 9780367278090 (print)OAI: oai:DiVA.org:ri-39682DiVA, id: diva2:1341100
Conference
7th International Conference on Marine Structures, MARSTRUCT 2019, 6 May 2019 through 8 May 2019
Note

 Funding details: Energimyndigheten, 41240–1; Funding details: Chalmers Tekniska Högskola; Funding text 1: Chalmers University of Technology and The Swedish Energy Agency are acknowledged for their financial support to this study through the project “R&D of dynamic low voltage cables between the buoy and floating hub in a marine energy system” (project number 41240–1).

Available from: 2019-08-07 Created: 2019-08-07 Last updated: 2019-08-07Bibliographically approved

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