OC6 Phase II: Integration and verification of a new soil–structure interaction model for offshore wind design
- National Wind Technology Center National Renewable Energy Laboratory Golden Colorado USA
- Advanced Modelling Norwegian Geotechnical Institute Oslo Norway
- Department of Wind Energy 4Subsea Asker Norway
- Wind Department Bureau Veritas Paris France
- Integrated Simulation Department China General Certification Center Beijing China
- Research Institute CSIC Haizhuang Windpower Co., Ltd. Chongqing China
- Offshore Technology Department DNV Bristol UK
- State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian China
- Department of Wind Energy eureka! Errigoiti Spain
- Department of Marine Technology Norwegian University of Science and Technology Trondheim Norway
- Department of Software Development Orcina Ltd. Ulverston UK
- Floating Offshore Group PRINCIPIA La Ciotat France
- Solver R&,D Department Siemens Industry Software Barcelona Spain
- Department of Loads and Simulations Simis AS Malm Norway
- Department of Wind Energy Technical University of Denmark Roskilde Denmark
- Department of Offshore Renewable Energy Tecnalia Research &, Innovation Donostia‐San Sebastián Spain
- IHCantabria ‐ Instituto de Hidráulica Ambiental Universidad de Cantabria Santander Spain
- Chair of Wind Energy Technology University of Rostock Rostock Germany
- Department of Floating Offshore Wind Energy Generation Systems University of Ulsan Ulsan South Korea
- Department of Civil and Environmental Engineering Universitat Politècnica de Catalunya Barcelona Spain
- Research and Development Department Vulcain Engineering Neuilly‐sur‐Seine France
- Department of Load Engineering WyndTek Delft The Netherlands
Abstract This paper provides a summary of the work done within the OC6 Phase II project, which was focused on the implementation and verification of an advanced soil–structure interaction model for offshore wind system design and analysis. The soil–structure interaction model comes from the REDWIN project and uses an elastoplastic, macroelement model with kinematic hardening, which captures the stiffness and damping characteristics of offshore wind foundations more accurately than more traditional and simplified soil–structure interaction modeling approaches. Participants in the OC6 project integrated this macroelement capability to coupled aero‐hydro‐servo‐elastic offshore wind turbine modeling tools and verified the implementation by comparing simulation results across the modeling tools for an example monopile design. The simulation results were also compared to more traditional soil–structure interaction modeling approaches like apparent fixity, coupled springs, and distributed springs models. The macroelement approach resulted in smaller overall loading in the system due to both shifts in the system frequencies and increased energy dissipation. No validation work was performed, but the macroelement approach has shown increased accuracy within the REDWIN project, resulting in decreased uncertainty in the design. For the monopile design investigated here, that implies a less conservative and thus more cost‐effective offshore wind design.
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1836292
- Journal Information:
- Wind Energy, Journal Name: Wind Energy Journal Issue: 5 Vol. 25; ISSN 1095-4244
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- United Kingdom
- Language:
- English
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