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TEAMER: Assessing Structural Integrity of a Self-Reactive Point Absorber Subjected to Extreme Sea Conditions

Metadata Updated: December 8, 2025

This submission contains the numerical modeling data and analysis results generated for the structural integrity assessment of a self-reactive two-body point absorber wave energy converter (WEC) designed by the University of Michigan. The dataset includes hydrodynamic outputs from ANSYS AQWA time-domain simulations conducted across nine extreme sea states along the 50-year return-period wave contour for the PACWave South site. These data provide WEC motions, wave-induced forces, and bending moments used to identify the governing survival-mode load cases. High-fidelity hydrodynamic loads were then produced using RANS-based OpenFOAM simulations for nine down-selected extreme wave events, including time histories of free-surface elevation, heave/pitch motions, vertical accelerations, and detailed pressure fields mapped over the WEC geometry. These CFD-generated pressure distributions were subsequently transferred to an NX Nastran/FEMAP finite element model to evaluate yielding and buckling performance under 18 critical load configurations. The submission also includes supporting documentation describing device geometry, mass properties, mooring configuration, mesh discretization, and modeling methodologies.

Use of these data requires several assumptions inherent to the modeling approach. Under extreme conditions, the buoy and spar are assumed to be mechanically locked, eliminating relative motion and representing the WEC's survival mode. Hydrodynamic loads from AQWA are based on potential-flow theory supplemented with Morison drag, while CFD loads come from an implicit RANS solver with a k-w SST turbulence model and a calibrated soft-spring representation of the mooring system. Structural analysis assumes linear static behavior, mild-steel material properties, and symmetry boundary conditions applied to a half-model. Only normal pressures from CFD are mapped to the FEA mesh; shear stresses are neglected due to their comparatively small magnitude. These data are suitable for engineers and analysts conducting WEC survivability assessments, structural design refinement, or validation of numerical modeling tools and should be interpreted within the context of the stated modeling assumptions and the PACWave South site conditions.

Access & Use Information

Public: This dataset is intended for public access and use. License: Creative Commons Attribution

Downloads & Resources

Dates

Metadata Created Date December 8, 2025
Metadata Updated Date December 8, 2025

Metadata Source

Harvested from OpenEI data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date December 8, 2025
Metadata Updated Date December 8, 2025
Publisher University of Michigan
Maintainer
Identifier https://data.openei.org/submissions/8578
Data First Published 2025-07-30T06:00:00Z
Data Last Modified 2025-12-08T06:41:48Z
Public Access Level public
Bureau Code 019:20
Metadata Context https://openei.org/data.json
Metadata Catalog ID https://openei.org/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Data Quality True
Harvest Object Id 9a452c34-b466-4eb4-9511-2f7821dc08b0
Harvest Source Id 7cbf9085-0290-4e9f-bec1-91653baeddfd
Harvest Source Title OpenEI data.json
Homepage URL https://mhkdr.openei.org/submissions/670
License https://creativecommons.org/licenses/by/4.0/
Old Spatial {"type":"Polygon","coordinates":-180,-83,180,-83,180,83,-180,83,-180,-83}
Program Code 019:009
Projectlead Lauren Ruedy
Projectnumber EE0008895
Projecttitle Testing Expertise and Access for Marine Energy Research
Source Datajson Identifier True
Source Hash 4532535365c97fbfb4a9bf9f0fb114a5ff2577a1f34470de581b3699c8efea62
Source Schema Version 1.1
Spatial {"type":"Polygon","coordinates":-180,-83,180,-83,180,83,-180,83,-180,-83}

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