MS 06

Structural Dynamics of Wind Energy Systems (on- and offshore)

Co-organised by

Rüdiger Höffer,
Ruhr University Bochum, Germany

Stefano Lenci,
Marche Polytechnic University, Italy

Enzo Marino,
University of Florence, Italy

Inka Mueller,
Hochschule Bochum, Germany

Abstract

Thanks to the recent very fast technological and industrial development, wind energy systems (on- and off-shore) have reached extra large dimensions (supporting towers height > 120m, rotor diameters > 120m) and are therefore extremely sensitive to dynamic excitations of all kinds. This minisymposium focuses in particular on the interactive effects and dynamic excitations from dominant conceptual, site-specific and climate-related factors (from wind, currents and waves, earthquake, etc.). The Mini-Symposium will address all major issues related to interactive structural dynamics of on- and off-shore wind energy systems (WES) and their main features, involving views of scientists/researchers as well as from developers and advanced professional engineers. More specifically, the following (not exhaustive) list of topics are of interest for the MS, with the main objective of delivering a complete state-of-the-art picture about the very complex dynamic behavior of WES:

• Interaction of WES elements (tower, rotor blades, supporting structures, etc.) with wind and other loading sources, including wind-soil-structure interaction under seismic actions;
• Off-shore structures (fixed bottom): wind-waves-structure dynamic interaction, nonlinear waves, advanced loading models, resonance phenomena;
• Off-shore structures (floating systems in deep water): dynamics of platforms, dynamics of mooring lines and risers; dynamics of new platform concepts; nonlinear effects;
• Dynamic/cyclic loading and fatigue problems (life-long maintenance);
• Uncertainty quantification & Structural Health Monitoring for large on- and off-shore WES;
• FSI problems of WES;
• Rotor/tower/platform dynamic interaction, aeroelastic and hydroelastic phenomena;
• Digital twins for the dynamics of WES;
• Artificial Intelligence and data-driven approaches for the dynamics of WES;
• Dynamics issues of floating energy islands.

Works adopting analytical, numerical/computational or experimental methods, and possibly combined approaches, are welcome.