Motion compensated gripper frame

Ulstein contributes to the integration of the motion-compensated gripper frame on Heerema's ‘SSCV Thialf’

In close collaboration with Heerema, Ulstein Design & Solutions BV has provided engineering services for integrating the innovative motion-compensated gripper frame (MCGF) on Heerema Marine Contractors’ ‘SSCV Thialf’. This technology is key to efficiently installing large monopiles for offshore wind farms, driving progress in the renewable energy sector. The semi-submersible crane vessel is essential in advancing offshore wind technology, aiding the construction of future wind farms essential for the global energy transition.

Published
20 January 2025
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Collaboration with Heerema Marine Contractors

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 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.

Motion compensated gripper frame

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. 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.

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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Edwin van Leeuwen Ulstein 19 comp bw

Edwin van Leeuwen

Description
Managing Director
Affiliation
Ulstein Design & Solutions B.V.
Ulstein 042 bewerkt bw

Marian Rodriguez Suarez

Description
Sales Manager
Affiliation
Ulstein Design & Solutions B.V.

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Edwin van Leeuwen Ulstein 19 comp bw

Edwin van Leeuwen

Managing Director

Affiliation
Ulstein Design & Solutions B.V.
Ulstein 042 bewerkt bw

Marian Rodriguez Suarez

Sales Manager

Affiliation
Ulstein Design & Solutions B.V.