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Dynamic life prediction of pitch and yaw bearings for wind turbine

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Abstract

The design guideline of the National Renewable Energy Laboratory (NREL) is a standard for designing and verifying pitch and yaw bearings of wind turbines. The usability of the guideline was evaluated by comparing with analytical results obtained by a commercial software. Results from calculation equations of the NREL guideline and from a commercial software were compared in terms of the main design evaluation items of pitch and yaw bearings, such as dynamic life, static load factor, and case-core interface models. Calculation and analysis were conducted using specifications and loading conditions for the yaw bearing of a 2.5 MW wind turbine. Results showed that the values computed using the NREL guideline were more conservative than those derived using the commercial software. Although the guideline showed some differences from the analytical results obtained using the software, they can be used in the initial design of pitch and yaw bearings because of the advantage of the simplicity and the characteristics of conservative output.

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References

  1. A. Zahedi, Current status and future prospects of the wind energy, Conference on Power & Energy, Ho Chi Minh City, Vietnam (2012).

    Google Scholar 

  2. R. Thresher, M. Robinson and P. Veers, Wind energy technology: Current status and R&D future, Conference paper NREL/CP-500-43374, Colorado, USA (2008).

    Google Scholar 

  3. J. K. Kaldellis and M. Kapsali, Shifting towards offshore wind energy -Recent activity and future development, Journal of Energy Policy, 53 (2013) 136–148.

    Article  Google Scholar 

  4. T. Burton, D. Sharpe, N. Jenkins and E. Bossanyi, Wind energy handbook, John Wiley & Sons Inc, West Sussex, England (2001).

    Book  Google Scholar 

  5. A. Daidie, Z. Chaib and A. Ghosn, 3D simplified finite elements analysis of load and contact angle in a slewing ball bearing, Journal of Mechanical Design, 130 (2008) 082601-1 -082601-8.

  6. T. Smolnicki, M. Stanco and D. Pietrusiak, Distribution of loads in the large size bearing -problems of identification, Technical Gazette, 20 (5) (2013) 831–836.

    Google Scholar 

  7. X. H. Gao, X. D. Huang, H. Wang and J. Chen, Modelling of ball-raceway contacts in a slewing bearing with non-linear springs, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 225 (2011) 827–831.

    Article  Google Scholar 

  8. Wind turbine design guideline DG03, Yaw and Pitch Rolling Bearing Life, Technical report NREL/TP-500-42362, NREL, Colorado, USA (2009).

  9. ANSI/AFBMA standard 9-1990, Load ratings and fatigue life for ball bearings, AFBMA, Washington, D. C. USA (1990).

    Google Scholar 

  10. ISO281:2007 (E), Rolling bearings-dynamic load ratings and rating life, 2nd edition, ISO, Geneva, Switzerland (2007).

    Google Scholar 

  11. ISO76:2006(E), Rolling bearings-static load ratings, ISO, Geneva, Switzerland (2006).

    Google Scholar 

  12. Germanischer Lloyd, Guideline for the certification of wind turbine, 2010 Ed., GL, Hamburg, Germany (2010).

  13. Romax Technology Ltd., RomaxDesigner software handbook, Nottingham, UK (2003).

    Google Scholar 

  14. ISO/TS16281, Rolling bearings-method for calculating the modified reference rating life for universally loaded bearings, ISO, Geneva, Switzerland (2008).

    Google Scholar 

Download references

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Correspondence to Young Jun Park.

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Ju Seok Nam holds a B.S., M.S. and Ph.D. in Biosystems Engineering from Seoul National University, Korea. He is currently a post-doctoral researcher in Korea Institute of Machinery & Materials (KIMM) in Daejeon, Korea. His research interests include agricultural machinery and driving system of wind turbines.

Young Jun Park has been working in KIMM since 2006. He is interested in the design and analysis of gearboxes and bearings for wind turbine and construction equipment. He received a B.S., M.S. and Ph.D. in Agricultural Machinery Engineering from Seoul National University, Korea.

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Nam, J.S., Park, Y.J. & Chang, H.S. Dynamic life prediction of pitch and yaw bearings for wind turbine. J Mech Sci Technol 30, 249–256 (2016). https://doi.org/10.1007/s12206-015-1228-1

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  • DOI: https://doi.org/10.1007/s12206-015-1228-1

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