Offshore Wind Explained E2: What simulation methods exists for floating offshore wind substructures?

Sesam Floating Offshore Wind Substructure Simulation Methods Explained Want to learn more about Sesam for floating offshore wind? Read more here: https://www.dnv.com/software/services/software-to-design-floating-wind-turbine-support-structures/ In this video, Kaijia Han, group leader of the Sesam Hydrodynamic Development team at DNV will delve into the various methods Sesam offers for simulating floating offshore wind substructures. As offshore wind energy ventures into deeper waters, floating wind turbines become vital. These structures are intricate, incorporating the rotor nacelle assembly (RNA), wind tower, support substructures, station-keeping systems, and power cables. Their movement in water results in complex aeroelastic and hydrodynamic interactions under various environmental conditions, posing new challenges for designers and engineers. At Sesam, we're dedicated to developing advanced solutions to tackle these challenges across different design stages. During early design and prototyping, quick iterations are key for exploring different concepts and configurations. Sesam's Frequency Domain Methods are perfect for this phase, offering speed and efficiency with minimal computational power and data storage requirements. In the later design stages, such as (pre) FEED and detailed design, accurately capturing interactions between wind, waves, and mooring lines while adhering to industry standards is crucial. Time domain simulations, though detailed, can be resource-intensive. Therefore, Sesam provides methods that balance flexibility, accuracy, and computational efficiency Time Domain Response Reconstruction Method: Our most efficient time domain method, drastically reducing simulation time from hours to minutes with minimal data storage. Time Domain Load Reconstruction Method: Ideal for dynamically sensitive structures, it quickly generates and maps hydrodynamic loads to the structure model for dynamic structural analysis. Time Domain Direct Load Generation Method: For those seeking to understand nonlinear hydrodynamic effects, such as nonlinear Froude-Krylov pressures. All these methods come equipped with ULS and FLS capabilities, ensuring engineers can assess the global and local safety and reliability of structures. Chapters: 0:00-0:31 Introduction of Kaijia Han 0:34-1:26 Challenges designing and assessing offshore wind in deeper water 1:26-1:48 The early design and prototyping stage 1:48- 2:05 The later design stage 2:05-3:10 The most efficient time domain methods of floating offshore wind 3:10-3:22 - FLS and ULS capabilities 3:22-3:32 Sesam as a complete offshore wind solution Subscribe to our channel and stay tuned: https://www.youtube.com/playlist?list=PL2EsH0WLHwsxENZGBjz8B3fBdl5Mf4RFF We believe collaboration and knowledge-sharing are essential for our planet’s success. In this series, we'll provide clear, insightful answers to your most frequently asked questions about fixed and floating offshore wind. Submit your questions in the comments below, and our experts will try to address them in future episodes. #FloatingOffshoreWind #OffshoreWindSimulation #Sesam #SubstructureSimulation #DNV