The effect of vessels on the flow pattern inside a groyne field: What is the influence of vessels on the flow properties inside a groyne field and in what way do the characteristics of the vessels influence this?

Due to river training in the past centuries, the bed level of the Waal started and is still decreasing by several centimetres a year. Erosion of the riverbed causes problems for objects underneath the riverbed like cables, pipelines and foundations of structures. Furthermore, some parts of the river are eroding at a higher velocity compared to...

Floating installation of offshore wind turbines in a single lift

The wind energy industry is booming. In 2017 the installed wind capacity has overtaken coal as the second largest form of power generation in Europe. Costs of wind farms are driven down, and even the first offshore wind-farm contract without subsidies is a fact. Installing the Wind Turbine Generators (WTGs) more efficiently increases the profit...

The application of marine access for Total Exploration and Production Netherlands

Design a complete active heave system based on an existing concept

The handling of a payload by a crane at sea poses numerous challenges. One of the main technical challenges is the movement of the vessel due to the hydrodynamic forces exerted by the waves. The resulting heave, pitch, and roll of the vessel results in time-varying crane-tip motion. This motion propagates to the payload through the rope and this...

Feasibility of increasing the pedestal height on the J-class vessel by 10 meters

In order for Jumbo to stay competitive in the offshore market, it's heavy lift vessels should be able to take on a wide range of lifting purposes. This can range from installation of transition pieces for wind turbines to installing modules of fpso's and platforms. One of the demands from the offshore market requires large lifting heights. It is...

Inzake verrichtingen, gedaan in een onderzoek naar de haalbaarheid van het kunnen ontwikkelen van een nieuw type offshore maintenance vessel

Building specification for an offshore semi-submersible multi purpose workover vessel