Offshore Wind Engineering


4Subsea is your expert partner for advanced subsea engineering. There is significant opportunity for technology transfer from oil & gas to offshore wind. 4Subsea offers a wide range of engineering services and monitoring products related to offshore wind systems. 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.

Typical Challenges for Operators

 

Do any of these apply to your offshore wind assets?
  • 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
  • You need engineering expertise for exploring new concepts and designs for offshore wind farms or floating wind turbines

 

4Subsea has unique experience with structural assessment, damage investigation and monitoring of submarine power cables and umbilicals and offers advisory services to design, fatigue, testing and integrity management. We provide expert advice on system cable design for bottom-fixed and floating offshore wind turbines and offshore substations.

 

 

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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