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Heerema aimed to enhance the capabilities of the SSCV Thialf by equipping it with the MCGF for monopile installation. Positioned on the port side, the MCGF ensures the monopile remains upright and within the required tolerances during installation from the moving vessel. 

Following the successful upgrade of the Aegir, Heerema contracted Ulstein to assist with this conversion as well.

Integration tasks and successful cooperation

The MCGF is connected to the vessel's side shell via rails, designed to withstand horizontal and vertical forces at various heights.

The primary task was to integrate the new rail sections into the existing vessel structure, which was not originally intended for this purpose. 

  • Structural design

Ulstein's structural design and onsite supported the smooth installation of the rails within tight tolerances

Ulstein undertook engineering tasks in the design, engineering, and realisation phases, and provided the feasibility, basic structural design, Finite Element Method (FEM) analysis, fatigue calculations, detailed design, and support during the installation phases of the MCGF's rail integration.

Ulstein's structural design and onsite supported the smooth installation of the rails within tight tolerances.

  • Seamless alignment

Ulstein commends the excellent cooperation with all stakeholders, including Heerema, Sledgehammer, and Huisman.

While everything looked great on paper, the new structures needed to align seamlessly with the existing decks and bulkheads of the SSCV Thialf. Big compliments to all involved for achieving a perfect fit on the first attempt!

A key step in the energy transition

This conversion marks a significant advancement in the capabilities required for large-scale offshore wind farms. Ulstein’s involvement highlights its expertise in providing high-quality engineering services and solutions for the offshore industry.

This achievement reinforces Ulstein’s role as a trusted partner in the development of sustainable offshore energy technologies.

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