Insights on the Fatigue-Limit-State Assessments of HVDC Cable Bundles
Abstract The fatigue limit state (FLS) of High-Voltage Direct Current (HVDC) cable bundles, in a configuration comprising two main conductors and a smaller fiber optic/earth cable, is investigated in this paper. Firstly, the effect of static tension and sag on the natural frequency of a single span with pinned-pinned end conditions is examined following two approaches recommended by DNV-RP-F105 (2017) and Zhu et al. (2023a), respectively. It is found that Zhu’s model outperforms DNV’s model for very long spans. Secondly, the FLS of a cable bundle is assessed for the lead sheath considering the reduction of VIV response amplitudes and the potential increase of damping ratio. Results show that the fatigue damage of a cable bundle can be significantly reduced when proper values of the VIV response reduction and the increase of damping ratio are considered.
Authors
- Daniel Carneiro (ORCID: https://orcid.org/0009-0006-0376-1472)
- Tongming Zhou (ORCID: https://orcid.org/0000-0002-5295-635X)
- Hongwei An (ORCID: https://orcid.org/0000-0002-9082-1405)
- Liang Cheng (ORCID: https://orcid.org/0009-0009-1943-2608)
- Terry Griffiths (ORCID: https://orcid.org/0000-0002-7788-1788)
- Fabrizio Pistani
- Jack Jorgensen (ORCID: https://orcid.org/0000-0002-1563-3383)
- Yunfei Teng
Institutions
- The University of Western Australia (AU)
- Offshore Monitoring (Cyprus) (CY)
- South China University of Technology (CN)
Publication Details
- Published
- 2025-06-22
- DOI
- https://doi.org/10.1115/omae2025-157521
- Primary Topic
- Vibration and Dynamic Analysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00