Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Influence of Flexible Pin for Planets on Service Life of Wind Turbine Gearboxes

풍력 발전기용 증속기의 유연 핀이 수명에 미치는 영향 연구

  • Received : 2011.05.20
  • Accepted : 2012.07.11
  • Published : 2012.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

An overhung mounted carrier with flexible pins is applied to the planetary gear train of a wind turbine gearbox to investigate the influence of the self-aligning effect by means of the deflection of the planet spindle and the flexible pin on the lifetime of the planet gear for a wind turbine gearbox. To analyze the load distribution of planet gears, both Euler theory and commercial software are employed. By applying an overhung mounted carrier with flexible pins in the wind turbine gearbox, we can improve the misalignment performance, face load factor, and service life of the planet gears. In particular, it was confirmed that a service life of more than 20 years could be realized for wind turbine gearboxes by applying a flexible pin to the overhung mounted carrier.

풍력발전기용 증속기의 유성기어열에서 한단 지지 캐리어에 유연 핀을 적용하여 유성 축과 유연 핀의 변형에 의한 자기 정렬 효과가 증속기 유성기어열의 수명에 미치는 영향에 대한 연구를 수행하였다. 유성기어열의 하중 분배 효과를 분석하기 위하여 오일러 이론과 상용 프로그램을 이용하였다. 풍력발전기용 증속기에 한단 지지 캐리어와 유연 핀이 사용됨에 따라 유성기어의 미스얼라인먼트, 치면 하중분포 계수 및 요구수명이 만족할 만한 성능 향상을 가져왔으며, 특히 요구수명에 있어서 증속기가 요구하는 20년 보증 수명을 만족하는 것으로 확인되었다.

Keywords

References

  1. Lee, G. H., Park, Y. J., Kim, J. K., Yim, J. G., Nam, Y. Y. and Chong, T. H., 2009, "An Optimal Design for MW-Class Wind Turbine Gearboxes based on their Structural Characteristics," Proceedings of WWEC2009, 8th World Wind Energy Conference and Exhibition, pp. 101-109.
  2. Park, N. K. and Lee, H. W., 2010, "An Investigation on the Characteristics of Gear Trains of Wind Turbines", Journal of the Korean Society of Marine Engineering, Vol. 34, No. 6, pp. 806-815. https://doi.org/10.5916/jkosme.2010.34.6.806
  3. Spinato, F., Tavner, P., Bussel, G. and Koutoulakos, E., 2009, "Reliability of wind turbine subassemblies," IET Renewable Power Generation, Vol. 3, Issue 4, pp. 1-15. https://doi.org/10.1049/iet-rpg:20080006
  4. Hicks, R., Cunliffe, F. and Giger, U., 2004, "Optimized Gearbox Design for Modern Wind Turbines," ORBITAL2 LTD, Wales, UK.
  5. Lee, K. H., Lee, G. H., Park, Y. J. and Nam, Y. Y., 2008, "Study on Compactness of Gearbox for Wind Turbine using Flexible Pin," Proceedings of KSNRE Autumn Conference. pp. 339 - 342.
  6. American Gear Manufacturers Association(AGMA), 2006, Design Manual for Enclosed Epicyclic Gear Drives, ANSI/AGMA 6123-B06.
  7. Cheon, G. J. and Oh, J. K., 2003, "Influence of Manufacturing and Assembly Errors on the Static Characteristics of Epicyclic Gear Trains," Trans. of the KSME(A), Vol. 27, No. 9, pp. 1595-1606. https://doi.org/10.3795/KSME-A.2003.27.9.1597
  8. Gere, James M., 2004, Mechanics of Materials 6TH Edition, GENGAGE Learning Korea, pp. 600-610.
  9. International Organization for Standardization(ISO), 2007, Calculation of Load Capacity of Spur and Helical Gears, ISO 6336-(1:6).
  10. Kim, J. K., Park, Y. J., Lee, G. H. and Song, J. S., 2010, "Gear Tooth Surface Load Analysis of Pitch Reducer for Wind Turbine Generator," Proceedings of KWEA Autumn Conference, pp. 277-281.
  11. KISSsoft AG, 2008, User Manual, Switzerland.

Cited by

  1. Influence of the Carrier Pinhole Position Errors on the Load Sharing of a Planetary Gear Train vol.19, pp.4, 2018, https://doi.org/10.1007/s12541-018-0065-4