Modelling an upend hinge in hydrodynamic simulations of a monopile upend operation

The offshore wind energy industry is quite literally reaching for the sky to meet the increasing demand for renewable energy in Europe. Offshore wind turbines are sprouting out of the waves off the coast of many European nations and their size is increasing rapidly. As the turbines become larger and the waters in which they are placed become...

Modelling of semi-floating XXL monopiles: Modelling the behavior of an upright semi-floating XXL monopile using the concept of trapped air

Over the past few decades, there has been a significant increase in global energy consumption. To address the risks associated with climate change, there is an increasing urgency to transition towards renewable energy sources. With this growing demand, the interest in offshore wind energy has increased significantly, leading to the construction...

Developing an upending method that utilizes the buoyancy of a monopile with trapped air: Optimising crane loads and workability of installation operations

Due to the rapidly growing offshore wind market, there is a high demand for capable wind turbine installation vessels. Current wind turbine installation vessels struggle with the installation of large diameter monopiles due to a lack of crane capacity and with the installation of wind turbine components at hub height due to a lack of crane...

A workability study on floating installation of monopiles using the MUST

Adapting the size of upending cradles according to the ever-increasing dimensions of offshore wind turbine monopiles is costly and requires structural modifications to the associated Heavy Lift Vessels (HLVs). This study therefore investigates the potential of the Monopile Upending Smart Tool (MUST), which is a platform suspended in the HLV...

An alternative, workability oriented approach to monopile upending

The European Union has set ambitious goals in their climate and energy framework to guide our transition to a more sustainable society. To achieve this goal, a mix of sustainable sources will have to be utilised, in which wind energy plays a crucial role. Offshore wind has been growing in popularity within this market, as the onshore market is...

Monopile upending workability and techniques

To respond to the growing offshore industry Jumbo Maritime has designed a new vessel to expand its offshore fleet: The Stella Synergy. The vessel will be able to install monopiles for the offshore wind and oil and gas industry. The main objective of this thesis is: Making a model that is able to predict the motions of the vessel as well as the...

Coupled Dynamics of a Dual Lift Operation: Upending Method of an XXL Monopile

Offshore wind farms are moving to deeper waters, implying that larger substructures will need to be installed. The monopile is the leading substructure nowadays and this structure could be promising for use in deeper waters as well. Generally, jack-up vessels are used for the installation of the substructures and turbines. However, the jacking...

Upending of a Monopile for an Offshore Wind Turbine Foundation

The subject of this report is the upending of a floating monopile for an offshore wind turbine foundation. This is an assignment of Van Oord Dredging and Marine Contractors BV. An analytical model has been developed to simulate the upending of a monopile in MapleTM, based on the general theoretical principles and the experience of Van Oord. An...