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The Influence of Suspension Stiffness on the Gearbox Input Loads in a 3-Point Suspension Wind Turbine Drive Train

풍력발전기용 3점 지지 드라이브 트레인의 지지 강성이 기어박스 입력하중에 미치는 영향

  • Nam, Ju Seok (Department of System Reliability, Korea Institute of Machinery & Materials) ;
  • Nam, Yong Yun (Department of System Reliability, Korea Institute of Machinery & Materials)
  • Received : 2015.08.04
  • Accepted : 2015.08.31
  • Published : 2015.10.15

Abstract

The effects of suspension stiffness on the reaction load of the gearbox suspension for a three-point suspension wind turbine drive train were investigated by finite element analysis. The reaction forces of the gearbox suspension appear to increase as the gearbox suspension stiffness increases; however, the main bearing stiffness has a reverse effect on the reaction forces. The influence of the gearbox suspension stiffness is greater than that of the main bearing. Since the suspensions must provide the gearbox with proper support, it is not practical to use soft gearbox suspension for small reaction forces. It is more feasible to use stiff main bearings. As a guideline for the main bearing stiffness in the present study, we propose a relative stiffness of 100-150% of the reference.

Keywords

References

  1. Zahidi, A., 2012, Current Status and Future Prospects of the Wind Energy, Proc. of Power & Energy Conference, 54-58.
  2. Thresher, R., Robinson. M., Veers. P., 2008, Wind Energy Technology: Current Status and R&D Future, Conference Paper NREL/ CP-500-43374, National Renewable Energy Laboratory, Colorado, USA.
  3. GWEC, 2014, Global Wind Energy Report, Annual Market Update 2014, Global Wind Energy Council, London, UK.
  4. Kaldellis, J. K., Kapsali, M., 2013, Shifting Towards Offshore Wind Energy - Recent Activity And Future Development, Journal of Energy Policy, 53 136-148. https://doi.org/10.1016/j.enpol.2012.10.032
  5. Ribrant, J., Bertling, L. M., 2007, Survey of Failures in Wind Power Systems with Focus on Swedish Wind Power Plants During 1997-2005, IEEE Transactions on Energy Conversion, 22:1 167-173. https://doi.org/10.1109/TEC.2006.889614
  6. Tegen, S., Lantz, E., Hand, B., Maples, B., Smith, A., Schwabe, P., 2013, 2011 Cost of Wind Energy Review, Technical Report NREL/TP-5000-56266, National Renewable Energy Laboratory, Colorado, USA.
  7. Link, H., LaCava, W., VanDam, J., McNiff, B., Sheng, S., Wallen, R., McDade, B., Lambert, S., Butterfield, S., Oyague, F., 2011, Gearbox Reliability Collaborative Project Report: Findings from Phase 1 and Phase 2 Testing, Technical Report NREL/TP-5000-51885, National Renewable Energy Laboratory, Colorado, USA.
  8. Link, H., Keller, J., Guo, Y., McNiff, B., 2013, Gearbox Reliability Collaborative Phase 3 Gearbox 2 Test Plan, Technical Report NREL/TP-5000-58190, National Renewable Energy Laboratory, Colorado, USA.
  9. Nam, J. S., Park, Y. J., Kim, J. K., Lee, G. H., Han, J. W., Nam, Y. Y., 2014, Effect of Non-torque Loadings on the Load Sharing Characteristics of Planetary Gearbox, Proceedings of the Korean Society of Manufacturing Technology Engineers, 2014:9 119-119.
  10. Nam, J. S., Nam, Y. Y., 2015, The Influence of Main Bearing Stiffness on the Gearbox of 3 Point Suspension Wind Turbine Drive Train, Journal of the Korean Society of Manufacturing Technology Engineers, 24:3 278-286. https://doi.org/10.7735/ksmte.2015.24.3.278
  11. DAFUL, 2013, DAFUL User's Mannual Version 4.2, Virtual Motion Inc.
  12. Kassimali, A., 2011, Matrix Analysis of Structures, Second Edition, Cengage Learning Inc., Boston, USA.
  13. Gere, J. M., 2004, Mechanics of Materials, Sixth Edition, Thomson Learning Inc., Connecticut, USA
  14. Nam, J. S., 2014, Effect of Non-torque Loadings on the Life of 3 Point Suspension Gearbox for Wind Turbine, A Thesis for a Doctorate, Seoul National University, Republic of Korea.

Cited by

  1. 풍력발전기용 3점 지지 기어박스의 토크암 핀 및 탄성중합체 부싱 설계 vol.26, pp.2, 2015, https://doi.org/10.7735/ksmte.2017.26.2.199