{"@type": "dcat:Dataset", "DOI": "10.21947/1870924", "accessLevel": "public", "bureauCode": ["019:20"], "contactPoint": {"@type": "vcard:Contact", "fn": "Amy Robertson", "hasEmail": "mailto:amy.robertson@nrel.gov"}, "dataQuality": true, "description": "**Overview**\n\nPhase II of the Offshore Code Comparison Collaboration, Continued, with Correlation and unCertainty (OC6) project was used to verify the implementation of a new soil-structure interaction (SSI) model for use within offshore wind turbine modeling software.  The REDWIN Macro-element model implemented and verified in this study enables a computationally efficient way to model the linear and nonlinear SSI problem, including hysteretic damping, of a monopile structure.  The modeling approach was integrated into several modeling tools and a series of increasingly complex simulations was conducted using the IEA 10MW reference turbine mounted on a monopile support structure to verify the coupling between the tools and the REDWIN Macro-element SSI model.  This campaign includes only numerical verification between various software and modeling approaches so no experimental measurements are available. The load cases (LC) considered include:\n\nLC1 \u2013 static response of the tower and substructure\n\nLC2 \u2013 frequency and mode-shape analysis of the tower and substructure\n\nLC3 \u2013 response of the tower and substructure due to wind-only loading\n\nLC4 \u2013 response of the tower and substructure due to wave-only loading\n\nLC5 \u2013 response of the tower and substructure due to wind and wave loading.\n\nDetailed properties of the modeled system are found in the following reference, \u201cBergua, Roger, Amy Robertson, Jason Jonkman, and Andy Platt. 2021. \"Specification Document for OC6 Phase II: Verification of an Advanced Soil-Structure Interaction Model for Offshore Wind Turbines.\u201d Golden, CO: National Renewable Energy Laboratory. NREL/TP-5000-79938. https://www.nrel.gov/docs/fy21osti/79938.pdf.\n\nDetails on the results from the OC6 Phase II project can be found in the following reference, \u201cBergua R, Robertson A, Jonkman J, et al. OC6 Phase II: Integration and verification of a new soil\u2013structure interaction model for offshore wind design.\u201d Wind Energy. 2022;25(5):793-810. doi:10.1002/we.2698\n\n\n**Data Details**\n\nNineteen academic and industrial partners performed simulations as part of this project, and their simulation results are available on this website. The naming of the datafiles follows the convention: oc6.phase2.participant.loadcase.txt. Also included are the wind files used by participants to prescribe forces and moments at the tower top yaw bearing for average hub-height wind speeds of 9.06 m/s and 20.09 m/s. These files are named as \u201cIEA-10.0-198-RWT_Uref09p06.txt\u201d and \u201cIEA-10.0-198-RWT_Uref20p09.txt\u201d respectively.\n\nOC6 Phase II data files have an identifier after the participant corresponding to the modeling approach used.  These identifiers are defined as followed:\n\nM1: Apparent Fixity (AF)\n\nM2: Coupled Springs (CS)\n\nM3: Distributed Springs (DS)\n\nM4: REDWIN\n\n**Data Quality**\n\nThis was a verification study with only simulation results. Data quality and uncertainty statements apply only to experimental data. ", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://a2e.energy.gov/data/oc6/oc6.phase2", "description": "Main dataset landing page with options to request/download", "format": "phase2", "mediaType": "application/octet-stream", "title": "oc6/oc6.phase2"}], "identifier": "https://data.openei.org/submissions/5712", "issued": "2022-06-03T00:00:00Z", "keyword": ["a2e", "atmosphere to electrons", "wind", "weto", "eere", "oc6", "Offshore Code Comparison Collaboration, Continued, with Correlation and unCertainty", "Develop and verify soil/structure interaction for pile/foundation interaction", "phase2"], "landingPage": "https://a2e.energy.gov/data/oc6/oc6.phase2", "license": "https://creativecommons.org/licenses/by/4.0/", "modified": "2022-06-06T00:00:00Z", "programCode": ["019:010"], "projectNumber": "67025", "projectTitle": "Wind Data Hub", "publisher": {"@type": "org:Organization", "name": "Wind Energy Technologies Office (WETO)"}, "title": "Develop and verify soil/structure interaction for pile/foundation interaction"}