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Gearbox Reliability Collaborative Phase 3 Gearbox 3 Test

Published by National Renewable Energy Laboratory | Department of Energy | Metadata Last Checked: January 27, 2026 | Last Modified: 2024-12-18T17:36:27Z
The GRC uses a combined gearbox testing, modeling, and analysis approach disseminating data and results to the industry and facilitating improvement of gearbox reliability. This test data describes the tests of GRC gearbox 3 in the National Wind Technology Center dynamometer and documents any modifications to the original test plan. It serves as a guide to interpret the publicly released data sets with brief analyses to illustrate the data. TDMS viewer and Solidworks software required to view data files. The National Renewable Energy Laboratory (NREL) Gearbox Reliability Collaborative (GRC) was established by the U.S. Department of Energy in 2006; its key goal is to understand the root causes of premature gearbox failures and improve their reliability.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
                                            [
  "019:20"
]
contactPoint 
                                            {
  "fn": "Jonathan Keller",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:jonathan.keller@nrel.gov"
}
dataQuality 
                                            true
description The GRC uses a combined gearbox testing, modeling, and analysis approach disseminating data and results to the industry and facilitating improvement of gearbox reliability. This test data describes the tests of GRC gearbox 3 in the National Wind Technology Center dynamometer and documents any modifications to the original test plan. It serves as a guide to interpret the publicly released data sets with brief analyses to illustrate the data. TDMS viewer and Solidworks software required to view data files. The National Renewable Energy Laboratory (NREL) Gearbox Reliability Collaborative (GRC) was established by the U.S. Department of Energy in 2006; its key goal is to understand the root causes of premature gearbox failures and improve their reliability.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "This test report describes the recent tests of GRC gearbox (GB) 3 in the National Wind Technology Center (NWTC) dynamometer and documents any modifications to the original test plan.",
    "format": "pdf",
    "accessURL": "http://www.nrel.gov/docs/fy17osti/67612.pdf",
    "mediaType": "application/pdf",
    "description": "This test report describes the recent tests of GRC gearbox (GB) 3 in the National Wind Technology Center (NWTC) dynamometer and documents any modifications to the original test plan."
  },
  {
    "@type": "dcat:Distribution",
    "title": "PDF Format. Engineering drawings of GRC gearbox (GB) 3 showing basic part dimensions, characteristics and assembly procedures.",
    "accessURL": "https://data.nrel.gov/system/files/56/2D%20Drawings.zip",
    "mediaType": "application/octet-stream",
    "description": "PDF Format. Engineering drawings of GRC gearbox (GB) 3 showing basic part dimensions, characteristics and assembly procedures."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Solidworks Format. Solid body models of GRC gearbox (GB) 3 for visualization and other analyses.",
    "accessURL": "https://data.nrel.gov/system/files/56/3D%20Models.zip",
    "mediaType": "application/octet-stream",
    "description": "Solidworks Format. Solid body models of GRC gearbox (GB) 3 for visualization and other analyses."
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. The drivetrain commissioning test sequence ensured that the dynamometer controls, drivetrain, gearbox, lubrication and cooling systems and instrumentation were all operating normally and ready for full-load testing.",
    "accessURL": "https://data.nrel.gov/system/files/56/5.1%20Drivetrain%20Commissioning.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. The drivetrain commissioning test sequence ensured that the dynamometer controls, drivetrain, gearbox, lubrication and cooling systems and instrumentation were all operating normally and ready for full-load testing."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Log of Static Bending Moment Tests",
    "accessURL": "https://data.nrel.gov/system/files/56/5.2.1%20Static%20Bending%20Moment%20Static%20NTL%20Test%20Log.xlsx",
    "mediaType": "application/octet-stream",
    "description": "Log of Static Bending Moment Tests"
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. Static bending moment tests for GB3 were conducted in offline conditions at 5.5% power. ",
    "format": " ",
    "accessURL": "https://data.nrel.gov/system/files/56/5.2.1.1%20Static%20Bending%20Moment%20.055%20Speed%20Normal.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. Static bending moment tests for GB3 were conducted in offline conditions at 5.5% power. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. Static bending moment tests for GB3 were conducted in offline conditions at 5.5% reverse power. ",
    "format": " ",
    "accessURL": "https://data.nrel.gov/system/files/56/5.2.1.2%20Static%20Bending%20Moment%20.055%20Speed%20Reverse.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. Static bending moment tests for GB3 were conducted in offline conditions at 5.5% reverse power. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. Static bending moment tests for GB3 were conducted in offline conditions at 0% power. ",
    "format": " ",
    "accessURL": "https://data.nrel.gov/system/files/56/5.2.1.3%20Static%20Bending%20Moment%200%20Power.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. Static bending moment tests for GB3 were conducted in offline conditions at 0% power. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. Static bending moment tests for GB3 were conducted at 25% power. ",
    "format": " ",
    "accessURL": "https://data.nrel.gov/system/files/56/5.2.1.4%20Static%20Bending%20Moment%200.25%20Power.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. Static bending moment tests for GB3 were conducted at 25% power. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. Static bending moment tests for GB3 were conducted at 50% power. ",
    "format": " ",
    "accessURL": "https://data.nrel.gov/system/files/56/5.2.1.5%20Static%20Bending%20Moment%200.50%20Power.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. Static bending moment tests for GB3 were conducted at 50% power. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. Static bending moment tests for GB3 were conducted at 75% power. ",
    "format": " ",
    "accessURL": "https://data.nrel.gov/system/files/56/5.2.1.6%20Static%20Bending%20Moment%200.75%20Power.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. Static bending moment tests for GB3 were conducted at 75% power. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. Static bending moment tests for GB3 were conducted at 100% power. ",
    "format": " ",
    "accessURL": "https://data.nrel.gov/system/files/56/5.2.1.7%20Static%20Bending%20Moment%201.00%20Power.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. Static bending moment tests for GB3 were conducted at 100% power. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. Static bending moment tests for GB3 were conducted at 10% power. ",
    "format": " ",
    "accessURL": "https://data.nrel.gov/system/files/56/5.2.1.8%20Static%20Bending%20Moment%200.10%20Power.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. Static bending moment tests for GB3 were conducted at 10% power. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. Dynamic bending moment tests for GB3 will be completed in offline (sequence 1), 25%-power (sequence 2), and 100%-power (sequence 3) conditions. ",
    "format": " ",
    "accessURL": "https://data.nrel.gov/system/files/56/5.2.2%20Dynamic%20Bending%20Moment.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. Dynamic bending moment tests for GB3 will be completed in offline (sequence 1), 25%-power (sequence 2), and 100%-power (sequence 3) conditions. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. Static thrust testing test sequences were completed in offline mode (sequence 2), at 25%-power (sequence 3), 50%-power (sequence 4), 75%-power (sequence 5), and 100%-power (sequence 6) conditions.",
    "accessURL": "https://data.nrel.gov/system/files/56/5.2.3%20Static%20Thrust.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. Static thrust testing test sequences were completed in offline mode (sequence 2), at 25%-power (sequence 3), 50%-power (sequence 4), 75%-power (sequence 5), and 100%-power (sequence 6) conditions."
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files.  In Phase 3 testing of GB2, the generator was misaligned up to 3° to assess whether excessive loads were imparted onto the HSS bearings.

NOTE: this archive is no longer functional. We apologize for the inconvenience.",
    "accessURL": "https://data.nrel.gov/system/files/56/5.3%20Generator%20Misalignment.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files.  In Phase 3 testing of GB2, the generator was misaligned up to 3° to assess whether excessive loads were imparted onto the HSS bearings.

NOTE: this archive is no longer functional. We apologize for the inconvenience."
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files. Reproduction of field conditions in the dynamometer was achieved in Phase 3 testing of GB2 using the dynamometer variable frequency drive capability. The same normal power production and shutdown cases tests will be repeated for GB3.

NOTE: this archive is no longer functional. We apologize for the inconvenience.",
    "accessURL": "https://data.nrel.gov/system/files/56/5.4%20Field%20Representative.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files. Reproduction of field conditions in the dynamometer was achieved in Phase 3 testing of GB2 using the dynamometer variable frequency drive capability. The same normal power production and shutdown cases tests will be repeated for GB3.

NOTE: this archive is no longer functional. We apologize for the inconvenience."
  },
  {
    "@type": "dcat:Distribution",
    "title": "TDMS Files.  Controlled shutdowns tests were also completed on November 3, 2016. While operating at a steady-state power level, the dynamometer was intentionally shut down in a controlled fashion.

NOTE: this archive is no longer functional. We apologize for the inconvenience.",
    "accessURL": "https://data.nrel.gov/system/files/56/5.5%20Grid%20Disconnect.zip",
    "mediaType": "application/octet-stream",
    "description": "TDMS Files.  Controlled shutdowns tests were also completed on November 3, 2016. While operating at a steady-state power level, the dynamometer was intentionally shut down in a controlled fashion.

NOTE: this archive is no longer functional. We apologize for the inconvenience."
  }
]
identifier https://data.openei.org/submissions/8160
issued 2016-12-22T00:25:12Z
keyword 
                                            [
  "Boulder",
  "Dynamometer",
  "GRC",
  "Gearbox",
  "Modeling",
  "NWTC",
  "Reliability",
  "Testing",
  "analysis",
  "colorado",
  "fatigue",
  "turbines"
]
landingPage https://data.nrel.gov/submissions/56
license https://creativecommons.org/licenses/by/4.0/
modified 2024-12-18T17:36:27Z
programCode 
                                            [
  "019:010"
]
projectNumber FY16 AOP 1.5.2.401
projectTitle FY16 AOP 30231 1.5.2.401 Wind Turbine Drivetrain Reliability
publisher 
                                            {
  "name": "National Renewable Energy Laboratory",
  "@type": "org:Organization"
}
title Gearbox Reliability Collaborative Phase 3 Gearbox 3 Test

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