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Title: Substructure Flexibility and Member-Level Load Capabilities for Floating Offshore Wind Turbines in OpenFAST: Preprint

Abstract

OpenFAST is an open-source, physics-based engineering tool applicable to the loads analysis of land-based and offshore wind turbines, including floating offshore wind turbines. The substructure for a floating wind turbine has historically been modeled in OpenFAST as a rigid body with hydrodynamic loads lumped at a point, which enabled the tool to predict the global response of the floating substructure, but not the structural loads within its individual members. This limitation is an impediment to designing floating substructures-let along newer designs that are more streamlined, flexible, and cost-effective. This paper presents the development plan of new capabilities in OpenFAST to model floating substructure flexibility and member-level loads, including the functional requirements and modeling approaches needed to understand and apply it correctly.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [2]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  2. Hayman Consulting LLC
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
OSTI Identifier:
1572265
Report Number(s):
NREL/CP-5000-74380
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the International Offshore Wind Technical Conference (IOWTC), 3-9 November 2019, St. Julian's, Malta
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; floating offshore wind turbine; substructure flexibility; member-level loads; functional requirements; aero-hydro-servo-elastics; OpenFAST

Citation Formats

Jonkman, Jason, Damiani, Rick R, Branlard, Emmanuel, Hall, Matthew, Robertson, Amy N, and Hayman, Greg. Substructure Flexibility and Member-Level Load Capabilities for Floating Offshore Wind Turbines in OpenFAST: Preprint. United States: N. p., 2019. Web.
Jonkman, Jason, Damiani, Rick R, Branlard, Emmanuel, Hall, Matthew, Robertson, Amy N, & Hayman, Greg. Substructure Flexibility and Member-Level Load Capabilities for Floating Offshore Wind Turbines in OpenFAST: Preprint. United States.
Jonkman, Jason, Damiani, Rick R, Branlard, Emmanuel, Hall, Matthew, Robertson, Amy N, and Hayman, Greg. Tue . "Substructure Flexibility and Member-Level Load Capabilities for Floating Offshore Wind Turbines in OpenFAST: Preprint". United States. https://www.osti.gov/servlets/purl/1572265.
@article{osti_1572265,
title = {Substructure Flexibility and Member-Level Load Capabilities for Floating Offshore Wind Turbines in OpenFAST: Preprint},
author = {Jonkman, Jason and Damiani, Rick R and Branlard, Emmanuel and Hall, Matthew and Robertson, Amy N and Hayman, Greg},
abstractNote = {OpenFAST is an open-source, physics-based engineering tool applicable to the loads analysis of land-based and offshore wind turbines, including floating offshore wind turbines. The substructure for a floating wind turbine has historically been modeled in OpenFAST as a rigid body with hydrodynamic loads lumped at a point, which enabled the tool to predict the global response of the floating substructure, but not the structural loads within its individual members. This limitation is an impediment to designing floating substructures-let along newer designs that are more streamlined, flexible, and cost-effective. This paper presents the development plan of new capabilities in OpenFAST to model floating substructure flexibility and member-level loads, including the functional requirements and modeling approaches needed to understand and apply it correctly.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

Conference:
Other availability
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