Jacking system control strategies during the seabed penetration phase of a wind turbine installation vessel

Wind turbine installation vessels (WTIVs) are ships that are specifically designed to install offshore wind turbines. These WTIVs have four or six large truss-like legs that are lowered towards the seabed by means of jacking systems. These jacking systems are regulated by control systems to ensure the leg is lowered with a constant velocity...

Evaluating the cost effectiveness of logistic strategies for onshore monopile handling in marshalling ports

The global ever growing energy demand, quest for renewable alternatives for fossil fuels and desire to reduce dependency on single countries has driven the increasing demand for offshore wind energy production. The advancing technologies that enable offshore wind turbines to gain efficiency go hand in hand with increasing sizes of components and...

Offshore wind turbine blade installation: Development of a motion-compensated Stewart platform for blade installation with a floating vessel

With the increasing water depths of the new offshore wind farms, the challenging soil conditions, the availability of assets, and other factors, jack-up installation vessels may no longer be suitable to complete the installation scope of work for the new wind farms. Therefore, installation methods and techniques using floating vessels must be...

Supply Chain Simulation of Offshore Wind Farm Monopile Installation: Performance of different supply chain configurations under dynamic weather influences

A monopile installation project consists of the whole process of loading monopiles to vessels, transporting monopiles to the wind farm and drilling monopiles in the seabed. Each installation project has different characteristics as the weather at the installation location, the distances to the suppliers and the vessels that are available differ...

Integration methods for floating offshore wind farms

The amount of floating offshore wind farms under development has drastically increased over the past years as the technology becomes viable for pre-commercial and commercial scale projects. Projects of this size require a streamlined, efficient production of the complete floating offshore wind turbine (FOWT), not only for manufacturing the...

Structural Analysis of an Offshore Jack-up Installation Vessel

Offshore installation vessels are growing in size in order that they are capable of handling the next-generation 15 and 20MW wind turbines. At the same time, it is important to gain a better understanding of their structural behaviour using the finite element (FE) method. One approach that is often used is the full vessel FE analysis, which...

Dynamic analysis of a mechanical connection between an installation vessel and a floating offshore wind turbine

Huisman has introduced the Windfarm Installation Vessel as a complete solution to assemble and install offshore wind turbines at sea.<br/>Installing a floating wind turbine at sea brings two main challenges, the relative motions between the floating structures and the load transfer of the wind turbine.<br/>The proposed installation procedure...

Blade manipulator for offshore wind turbine installation by WIV: A new approach to the installation of enormous wind turbine blades on a state of the art installation vessel while increasing safety and workability

An investigation of installation strategies to install next-generation offshore wind turbine generator components: Feedering vs. Shuttling, an efficient installation process for the future

Climate change is triggering among others a larger demand for offshore wind energy. This leads to new developments of which larger next-generation Wind Turbine Generators is the most relevant. These next-generation WTGs create problems for the carrying capacity of current-day installation jack-up vessels that work according to the conventional...

Offshore Wind Installation Vessels: Generating insight about the driving factors behind the future design

Offshore wind plays a major role in the transition of conventional energy towards sustainable energy sources. To keep up with the increasing installation demand in this sector new offshore wind installation vessels are needed. There is a need for more certainty and predictability regarding the requirements of the future offshore wind...

Design in principle of crane vessel for flexible fully assembled wind turbine installation

Wind turbine industry is growing and future predictions are promising. However, a shortage of installation vessels could influence this growth in offshore wind industry. Commonly, wind turbines are installed in components using a jack-up vessel. Occasionally, wind turbines are installed fully assembled. Lifting above the wind turbine is not...

Design in principle for flexible fully assembled wind turbine installation: Offshore installation of wind turbines

Wind turbine industry is growing and future predictions are promising. However, a shortage of installation vessels could influence this growth in offshore wind industry. Commonly, wind turbines are installed in components using a jack-up vessel. Occasionally, wind turbines are installed fully assembled. The center of gravity of a fully assembled...

A feasibility study for the installation of 10 MW offshore wind turbines with an SSCV

Since the oil price collapse at the end of 2014, operators in the offshore industry experience a decline in revenues and a need for downsizing. Simultaneously, the wind industry is growing every year, as an increasing amount of companies and consumers are investing in green energy. This creates opportunities for Heerema Marine Contractors (HMC),...