Offshore Wind Engineering


4Subsea is your expert partner for advanced subsea engineering. 4Subsea offers a wide range of engineering services and monitoring products related to offshore wind systems, and can offer expert engineering services within floating concept development, operation otimisation, and dynamic cable design. 4Subsea offshore wind _ all rights reserved

 

Typical Challenges for Operators

 

Do any of these apply to your offshore wind assets?
  • You need engineering expertise for exploring new concepts and designs for bottom-fixed or floating wind turbines
  • Insufficient knowledge in-house about cable to substructure interfaces, substructure to seabed interfaces, or structural dynamics
  • You lack the tools and expertise necessary to ensure a robust cable design

 

We provide dedicated expertise for concept development and detailed engineering of offshore floating wind, as well as system design and analysis of inter-array and export cables.4Subsea has unique experience with structural assessment, damage investigation and monitoring of submarine power cables and umbilicals. We offer advisory services to design, fatigue, testing and integrity management. Furthermore, we provide expert advice on system cable design for bottom-fixed and floating offshore wind turbines and offshore substations.

 

Value Engineering 4Subsea offshore wind

 

4Subsea experience with floating wind turbines, including Hywind 2010-2019
  • System / concept / key driver insight
  • Marine design
  • Structural design
  • Mooring design
  • Floating substation design for wind park
  • Cable configuration design
  • Global analysis
  • Marine operations and Commercial

 

We cover all life cycle phases, starting with technology development and conceptual design through FEED and detailed design, procurement, construction, installation, operation, and decommissioning. As such, we aim to be your expert partner for advanced subsea engineering.

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Key Deliverables

  • Concept development
  • Structural design
  • Mooring system design
  • Dynamic cable design
  • Assembly and marine operations

 

Cable System Analysis

  • Cable Protection Systems (CPS)
  • Cable configuration system design
  • Cable fatigue analysis
  • Ancillary components (stiffeners, clamps, buoyancy)
  • Installation analysis
  • Tie-in analysis
  • Subsea routing

 

Structural Assessment & Monitoring

  • Detailed FE analysis using MARC
  • 2D model and axis symmetric modelling
  • 3D model for validation and non-axi symmetrical cases
  • Planning and execution of full scale test
  • Small scale test – material
  • Monitoring cable using autonomous sensor technology – fatigue, scour, freespan
  • Data for validation of FE analysis
  • Basis for risk assessment

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