Webinar: Speed up conceptual studies and early design of floating offshore wind substructures
Learn how proven offshore structural analysis methods in the frequency domain can be used in the development of floating offshore wind substructures.
The floating offshore wind industry is still in its early stages with a focus on achieving cost effectiveness by using larger turbines and by designing floaters at minimal cost based on simulations assessing motions, loads and structural responses.
Today, the industry is characterised by prototype development and R&D, while the first (pre)commercial wind farms are coming up too. The prototypes built may not be fully optimised structures as in a full-scale commercial wind farm but are rather used for full-scale testing and learning purposes.
The industry is in a development phase with unsettled workflows and analysis methods. Various methods in time domain (TD) and frequency domain (FD) are being considered and tailored to different floater types. Rapid redesign loops are crucial in early project stages for analysing the large number of design load cases required. FD methods are therefore being investigated by the industry and academia as a quick and viable methodology for certain stages of the design.
In this webinar we will focus on a workflow for the design of floating offshore wind substructures based on the FD methodology. We will also discuss the benefits, assumptions and limitations of this method compared to methods in TD.
Agenda:
In this webinar we’ll go through:
- Assumptions and limitations when using the FD method compared to TD methods.
- The computational performance of the FD method – minutes instead of hours.
- Introduction to the complete FD workflow using Sesam for stability, hydrodynamic and structural analysis, ULS and FLS postprocessing.
- How wind turbine loads are accounted for in ULS and FLS analyses in the FD method.
- The FD workflow from modelling to ULS and FLS postprocessing.
- A demonstration of the FD workflow for a semi-submersible type of structure.
- Q&A session.
Dates and presenters:
14th of February 09:00 – 10:00am CET (EMEA)
Ole Jan Nekstad - Business Development Director
Ole Jan is based in Norway and has been working in DNV with Sesam for over 40 years. He has a background in ship and offshore engineering, focused on both fixed and floating offshore wind and O&G.
Håkon Berg - Principal Engineer, Customer Success
Håkon is based in Norway and has a background in mechanical engineering and FEA. He has been working with Sesam in the technical support team since 2007.
14th of February 16:00 – 17:00pm CET (AM)
Won Ho Le - Principal Engineer, Customer Success & Pre-Sales Lead
Won Ho is currently working as a customer success and presales lead at the Renewables and Ocean Structures North America team. In this role, he provides technical support and solutions, and hands-on training for DNV Sesam products, focusing on the integrated analysis workflow of floating offshore wind substructures and mooring systems.
The floating offshore wind industry is still in its early stages with a focus on achieving cost effectiveness by using larger turbines and by designing floaters at minimal cost based on simulations assessing motions, loads and structural responses.
Today, the industry is characterised by prototype development and R&D, while the first (pre)commercial wind farms are coming up too. The prototypes built may not be fully optimised structures as in a full-scale commercial wind farm but are rather used for full-scale testing and learning purposes.
The industry is in a development phase with unsettled workflows and analysis methods. Various methods in time domain (TD) and frequency domain (FD) are being considered and tailored to different floater types. Rapid redesign loops are crucial in early project stages for analysing the large number of design load cases required. FD methods are therefore being investigated by the industry and academia as a quick and viable methodology for certain stages of the design.
In this webinar we will focus on a workflow for the design of floating offshore wind substructures based on the FD methodology. We will also discuss the benefits, assumptions and limitations of this method compared to methods in TD.
Agenda:
In this webinar we’ll go through:
- Assumptions and limitations when using the FD method compared to TD methods.
- The computational performance of the FD method – minutes instead of hours.
- Introduction to the complete FD workflow using Sesam for stability, hydrodynamic and structural analysis, ULS and FLS postprocessing.
- How wind turbine loads are accounted for in ULS and FLS analyses in the FD method.
- The FD workflow from modelling to ULS and FLS postprocessing.
- A demonstration of the FD workflow for a semi-submersible type of structure.
- Q&A session.
Dates and presenters:
14th of February 09:00 – 10:00am CET (EMEA)
Ole Jan Nekstad - Business Development Director
Ole Jan is based in Norway and has been working in DNV with Sesam for over 40 years. He has a background in ship and offshore engineering, focused on both fixed and floating offshore wind and O&G.
Håkon Berg - Principal Engineer, Customer Success
Håkon is based in Norway and has a background in mechanical engineering and FEA. He has been working with Sesam in the technical support team since 2007.
14th of February 16:00 – 17:00pm CET (AM)
Won Ho Le - Principal Engineer, Customer Success & Pre-Sales Lead
Won Ho is currently working as a customer success and presales lead at the Renewables and Ocean Structures North America team. In this role, he provides technical support and solutions, and hands-on training for DNV Sesam products, focusing on the integrated analysis workflow of floating offshore wind substructures and mooring systems.