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Title: Inclusion of Structural Flexibility in Design Load Analysis for Wave Energy Converters: Preprint

Abstract

Hydroelastic interactions, caused by ocean wave loading on wave energy devices with deformable structures, are studied in the time domain. A midfidelity, hybrid modeling approach of rigid-body and flexible-body dynamics is developed and implemented in an open-source simulation tool for wave energy converters (WEC-Sim) to simulate the dynamic responses of wave energy converter component structural deformations under wave loading. A generalized coordinate system, including degrees of freedom associated with rigid bodies, structural modes, and constraints connecting multiple bodies, is utilized. A simplified method of calculating stress loads and sectional bending moments is implemented, with the purpose of sizing and designing wave energy converters. Results calculated using the method presented are verified with those of high-fidelity fluid-structure interaction simulations, as well as low-fidelity, frequency-domain, boundary element method analysis.

Authors:
 [1];  [1];  [1];  [1]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
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:
1378880
Report Number(s):
NREL/CP-5000-68923
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the European Wave and Tidal Energy Conference, 27 August - 1 September 2017, Cork, Ireland
Country of Publication:
United States
Language:
English
Subject:
16 TIDAL AND WAVE POWER; hydroelastic; wave energy converters; WEC; WEC-Sim; design loads; fluid-structure interaction

Citation Formats

Guo, Yi, Yu, Yi-Hsiang, van Rij, Jennifer A, and Tom, Nathan M. Inclusion of Structural Flexibility in Design Load Analysis for Wave Energy Converters: Preprint. United States: N. p., 2017. Web.
Guo, Yi, Yu, Yi-Hsiang, van Rij, Jennifer A, & Tom, Nathan M. Inclusion of Structural Flexibility in Design Load Analysis for Wave Energy Converters: Preprint. United States.
Guo, Yi, Yu, Yi-Hsiang, van Rij, Jennifer A, and Tom, Nathan M. Mon . "Inclusion of Structural Flexibility in Design Load Analysis for Wave Energy Converters: Preprint". United States. doi:. https://www.osti.gov/servlets/purl/1378880.
@article{osti_1378880,
title = {Inclusion of Structural Flexibility in Design Load Analysis for Wave Energy Converters: Preprint},
author = {Guo, Yi and Yu, Yi-Hsiang and van Rij, Jennifer A and Tom, Nathan M},
abstractNote = {Hydroelastic interactions, caused by ocean wave loading on wave energy devices with deformable structures, are studied in the time domain. A midfidelity, hybrid modeling approach of rigid-body and flexible-body dynamics is developed and implemented in an open-source simulation tool for wave energy converters (WEC-Sim) to simulate the dynamic responses of wave energy converter component structural deformations under wave loading. A generalized coordinate system, including degrees of freedom associated with rigid bodies, structural modes, and constraints connecting multiple bodies, is utilized. A simplified method of calculating stress loads and sectional bending moments is implemented, with the purpose of sizing and designing wave energy converters. Results calculated using the method presented are verified with those of high-fidelity fluid-structure interaction simulations, as well as low-fidelity, frequency-domain, boundary element method analysis.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Aug 14 00:00:00 EDT 2017},
month = {Mon Aug 14 00:00:00 EDT 2017}
}

Conference:
Other availability
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