Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Design Method to Reduce the Press-Fitted Assembly Dama

압입축의 파손 저감을 위한 설계 방법에 대한 연구

  • Byon, Sung-Kwang (Dept. of Mechanical Engineering, Dongyang Mirae UNIV.) ;
  • Choi, Ha-Young (Dept. of Mechanical Engineering, Dongyang Mirae UNIV.) ;
  • Lee, Dong-Hyung (Railroad Vehicle Core Technology Research Team, Korea Railroad Research Institute)
  • 변성광 (동양미래대학교 기계공학부) ;
  • 최하영 (동양미래대학교 기계공학부) ;
  • 이동형 (한국철도기술연구원 차량핵심기술연구팀)
  • Received : 2021.02.25
  • Accepted : 2021.04.16
  • Published : 2021.05.31
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Abstract

A press-fitted shaft is an essential part used in industrial machines, and it is generally used to transmit large quantities of power. Very high contact pressure occurs at the end parts of the contact between the shaft and boss, which are press-fitted shaft components. Such contact pressure not only damages the contact surface of a press-fitted shaft but also reduces its fatigue strength. To improve a press-fitted shaft's fatigue strength, the contact pressure on the contact surface, which directly affects the fatigue strength, should be minimized. Thus, in this study, the design configuration optimization of the end part of the boss was based on the approximate optimization method and was aimed at minimizing the contact pressure at the end of a press-fitted shaft. Comparison of the contact pressure and the contact stress of a conventional press-fitted shaft with those of the optimized press-fitted shaft showed that the boss design of the optimized press-fitted shaft effectively improved the fatigue life.

Keywords

Acknowledgement

이 논문은 동양미래대학교의 2020년 학술연구비 지원에 의하여 연구되었음.

References

  1. Lee, D. H., Kwon, S. J., Choi, J. B., Kim, Y. J., "Experimental Study on Fatigue Crack Initiation and Propagation due to Fretting Damage in Press-fitted Shaft," Korean Society of Mechanical Engineering, Vol. 31, No. 6, pp. 701-709, 2007. https://doi.org/10.3795/KSME-A.2007.31.6.701
  2. Lee, D. H., Kwon, S. J., Seo, J. W., Kwon, S. T., and You, W. H., "Evaluation of Fatigue Crack Initiation Life according to the Hub Contact Shape in a Pressfitted Shaft," Proc. of KSPE Spring Conference, Vol. 20, pp. 1467-1468, 2010.
  3. Smith, R. A., Hillmansen, S., "A Brief Historical Overview of the Fatigue of Railway Axles," Proceedings of the Institution of Mechanical Engineers. Part F: Journal of Rail and Rapid Transit, Vol. 218, No. 4, pp. 267-278, 2004. https://doi.org/10.1243/0954409043125932
  4. Shin, J. M., Han, S. H., Han, D. S., "Investigation of Stress Concentration and Fatigue Life of Axle Drive Shaft with Relief Groove," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 11, No. 1. pp. 88-94, 2012.
  5. Moon, H. J., Sim, K. J., Jeon, N. J., "A Study on the Structural Strength Fatigue Improvement of an Axle Shaft for a 3.5-Ton Commercial Vehicle," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 17, No. 3. pp. 71-77, 2018. https://doi.org/10.14775/ksmpe.2018.17.3.071
  6. Alfredsson, B., "Fretting fatigue of a shrink-fit pin subjected to rotating bending: experiments and simulations," International Journal Fatigue, Vol. 31, No. 10, pp. 1559-1570, 2009. https://doi.org/10.1016/j.ijfatigue.2009.04.019
  7. Peterson, R. and Wahl, A., "Fatigue of Shafts at Fitted Members with a Related Photoelastic Analysis," Journal of Applied Mechanics, Vol. 2, No. 1, pp. 1-11, 1935.
  8. Nishioka, K. and Komatsu, H., "Researches on Increasing the Fatigue Strength of Press-Fitted Shaft Assembly," Bull JSME, Vol. 10, No. 42, pp. 880-889, 1967. https://doi.org/10.1299/jsme1958.10.880
  9. Biron, G., Vadean, A., and Tudose, L., "Optimal Design of Interference Fit Assemblies Subjected to Fatigue Loads," Structural and Multidisciplinary Optimization, Vol. 47, No. 3, pp. 441-451, 2013. https://doi.org/10.1007/s00158-012-0836-y
  10. Lee, D. H., Kwon, S. J., Choi, J. B. and Kim, Y. J., "The Effect of Fretting Wear on Fatigue Life of Press-fitted Shaft," The Korean Society of Mechanical Engineers, Vol. 31, No. 11, pp. 1083-1092, 2007. https://doi.org/10.3795/KSME-A.2007.31.11.1083
  11. Makino, T., Yamamoto, M., and Hirakawa, K., "Effect of Contact Edge Profile on Fretting Fatigue Crack Initiation Site in Press-fitted Axle," Transactions of the Japan Society of Mechanical Engineers (A), Vol. 63, No. 615, pp. 2312-2317, 1997. https://doi.org/10.1299/kikaia.63.2312
  12. Park, S. H., Design of Experiments, Minyoung-Sa, Korea, 2009.
  13. Hong, K. J., Jeon, K. K., Cho. Y. S., Choi, D. H. and Lee, S. J., "A Study on the Construction of Response Surface for Design Optimization," Transactions of the Korean Society of Mechanical Engineers (A), Vol. 24, No. 6, pp. 1408-1418, 2000.
  14. Cardei, M. and Wu, J., "Energy-Efficieant Coverage Problem in Wireless Ad Hoc Sensor Networks," Computer Communications, Vol. 29, No.4, pp. 413-420, 2006. https://doi.org/10.1016/j.comcom.2004.12.025