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Title: Comparison of Second-Order Loads on a Tension-Leg Platform for Wind Turbines: Preprint

The first objective of this work is to compare the two floating offshore wind turbine simulation packages {DIFFRAC+aNySIM} and {WAMIT+FAST}. The focus is on second-order wave loads, and so first- and second-order wave loads are applied to a structure sequentially for a detailed comparison and a more precise analysis of the effects of the second-order loads. aNySIM does not have the capability to model flexible bodies, and so the simulations performed in this tool are done assuming a rigid body. FAST also assumes that the platform is rigid, but can account for the flexibility of the tower. The second objective is to study the effects of the second-order loads on the response of a TLP floating wind turbine. The flexibility of the tower must be considered for this investigation, and therefore only FAST is used.
Authors:
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Publication Date:
OSTI Identifier:
1215149
Report Number(s):
NREL/CP-5000-63840
Resource Type:
Conference
Resource Relation:
Conference: Twenty-Fifth International Offshore and Polar Engineering Conference, 21-26 June 2015, Kona, Hawaii
Research Org:
NREL (National Renewable Energy Laboratory (NREL), Golden, CO (United States))
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy Wind Power Technologies Office
Contributing Orgs:
Maritime Research Institute of The Netherlands (MARIN), Wageningen, The Netherlands; MARIN Academy, Wageningen, The Netherlands
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY TLP; SECOND-ORDER; RESONANCE; SUM-FREQUENCY; DIFF-FREQUENCY; FLEXIBILITY; FAST; ANYSIM; WAMIT; DIFFRAC