MIIP 021 HyLiFlex



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Providing the hydrodynamic foundation of utility-scale floating solar parks based on Ultra Large Floating Structures on the open ocean


Increasing interest in utilization of the sea for renewable energy and food production leads to growing need for support structures for these activities. Compared to the oil and gas industry the energy density of marine renewable energies and floating farms is very low. Therefore very large and cost-efficient support structures are needed. This requires covering a given area with the least amount of structure pointing towards lightweight and highly flexible floating structures that will follow the wave motion on the water. At dimensions of several hundred metres to kilometres long and wide this type of structure has never been built before. There are also no engineering tools for the hydrodynamic calculation and design of such structures.
Lightweight and flexible Ultra Large Floating Structures (ULFS) are a new category of floating structures. Providing design tools for these structures will enable the industry to develop concepts and projects to make harvesting of marine renewable energies commercially interesting.


The objective of this project is to develop a simplified hydrodynamic model of a lightweight flexible ULFS to predict its motion behaviour in waves as well as its influence on the propagating waves.

This model forms the basis for future developments of more elaborate models considering structural topology and distributed payload in following research projects. Furthermore the simplified model can be used for first engineering estimates of the required structural properties.


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