C-Job continuously evaluates the maritime sector and its evolving requirements. Based on signals from the marketplace, we saw the potential need for multiple larger offshore construction vessels, where existing ships are aging and replacements are needed.

ABOUT THE PROJECT

Initial design for a larger crane capacity

The offshore construction vessels in question perform subsea installation and small construction works in the North Sea, including lowering substations and hooking up seabed infrastructure.

We decided to perform an initial design using data analysis and equipment specifications from Huisman – a leading offshore crane manufacturer – for the project.

Offshore operations are all about safety and efficiency, therefore a well thought out and versatile deck layout was developed.

C-Job performed feasibility checks and capacity stability calculations to ensure that the vessel could utilize the specified crane to its maximum capability. The vessel is driven by dual-fuel methanol/MDO engines for ship power and to power the electrical crane. This results in large variations in power demand, for which our initial design was configured. We also assessed whether the vessel’s platform might also be suitable as cable layer in the future.

Our work is now a showcase design that will serve as a starting point for the full vessel design by the client.

Project highlights

Optimized crane operation
Initial design to ensure feasibility and maximum operational capability

Power variation set-up
Design allows for variations in power demand for a dual-fuel methanol/MDO vessel

Stability
Optional heavy compensation system design for working in high seas