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동적 파워 케이블의 해양운용환경 내구성 검증시험에 관한 연구

A Study for Durability Test of Dynamic Power Cable under Marine Operating Environment Condition

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키워드

주제분류조선공학

초록

In the production power transmitting of a floating production system like a wind offshore floating, the power cable should be connected from the surface system into the subsea system. The connection between the surface and the subsea system will make the power cable get a dynamic load like current and wave forces. Based on this condition, a dynamic power cable is required to endure external physical force and vibration in the long-term condition. It needs more requirements than static power cable for mechanical fatigue properties to prevent failures during operations in marine environments where the external and internal loads work continuously. As a process to verify, the durability test of dynamic power cables under the marine operation environment condition was carried out by using domestic technology development.

Abstract

In the production power transmitting of a floating production system like a wind offshore floating, the power cable should be connected from the surface system into the subsea system. The connection between the surface and the subsea system will make the power cable get a dynamic load like current and wave forces. Based on this condition, a dynamic power cable is required to endure external physical force and vibration in the long-term condition. It needs more requirements than static power cable for mechanical fatigue properties to prevent failures during operations in marine environments where the external and internal loads work continuously. As a process to verify, the durability test of dynamic power cables under the marine operation environment condition was carried out by using domestic technology development.

참고문헌 (10)

  1. API 17E 2nd, "Specification for Subsea Umbilicals", ~ (2017)
  2. Dai, T, "Experimental and numerical studies on dynamic stress and curvature in steel tube umbilicals", Marine Structures, 72, pp.102724~ (2020)
  3. DNVGL Standard 0119, "Floating wind turbine structure", ~ (2018)
  4. Hobbs, R. E, "Behaviour of Cables under Dynamic or Repeated Loading", Journal of Constructional Steel Research, 39(1), pp.31~50 (1996)
  5. Karlsen, S, "Fatigue of Copper Conductors for Dynamic Subsea Power Cables", Nexans, International Conference on Ocean, Offshore and Arctic Engineering, pp.275~281 (2010)
  6. Kumar, K, "Contact Stresses in Multilayered Strands under Tension and Torsion", ASME Journal of Applied Mechanics, 68(3), pp.432~440 (2001)
  7. Kuznecovs, A, "A methodology for design and fatigue analysis of power cables for wave energy converters", International Journal of Fatigue, 122, pp.61~71 (2019)
  8. IEC, 60228, "Conductors of Insulated Cables", ~ (2014)
  9. IEC, 60502-2, "Power Cables with Extruded Insulation and Their Accessories for Rated Voltages from 1 kV (Um = 1,2kV) up to 30 kV (Um = 36 kV) - Part 2: Cables for rated voltages from 6 kV (Um = 7,2 kV) up to 30 kV (Um = 36kV)", ~ (2014)
  10. "Petrobras specification I-ET-3500.00-1500-291-PAZ-002REV.B, Umbilical for Subsea Applications, “Qualification Tests for Umbilicals”", ~

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