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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Vibration Analysis at Bike Frame Fork

자전거 프레임 포크에서의 진동 해석

  • Cho, Jae Ung (Kongju National University Mechanical and Automotive Engineering Div.) ;
  • Han, Moon Sik (Keimyung University Mechanical and Automotive Engineering Dept.)
  • 조재웅 (공주대학교 기계자동차공학부) ;
  • 한문식 (계명대학교 기계자동차공학과)
  • Received : 2014.01.29
  • Accepted : 2014.02.27
  • Published : 2014.02.28
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Abstract

This study investigates structural and vibration analyses for three types of bike frame fork models. As long as the maximum equivalent stresses of these models are lower than the yield stress, the three models are considered to be safe structurally. Type 3, with a maximum equivalent stress of 169.23 MPa, has the lowest stress among the three models and the strongest strength. Types 1, 2 and 3 have natural frequencies lower than 270 Hz. Type 3, with a critical frequency of 118 Hz, has the best durability under vibration among the three models. In order to decrease the vibration transmitted to a bike rider riding on a rough road, the impact due to vibration can be relieved by selecting a Type 3 model from among the three models. The results of this study can be effectively utilized for the design of a bike frame fork as this allows the anticipation and prevention of damage caused by durability issues.

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References

  1. Cho, Y. T., Lee, K. Y., Lee, C. H., 2010, "Development of Flange Flexible Urethane-key Coupling", Korean Journal of Machine Tools, Vol.19, No.5, pp. 667-671.
  2. Han, M. S. and Cho, J. U., 2012, "Structural Safety Analysis on Bicycle Suspension Seat Post", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 11, No. 4, pp. 72-81.
  3. Han, M. S. and Cho, J. U., 2012, "Structural and Fatigue Analysis on Shock Absorber Mount of Automobile", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 11, No. 1, pp. 125-133.
  4. Swanson, J., 2008, "Ansys 11.0, Ansys Inc.," U.S.A.
  5. Ko, J. Y. 2009, "ANSYS and Finite Element Method", Sigma Press, pp. 123-153.
  6. Kim, K. J., Jung, M. R., Kim, Y. T., Baek, K. Y. and Lee, J. H., 2008, "Inelastic Nonlinear Analysis of Arch Truss and Space Truss Structures", Journal of the Korean Association for Spatial Structures, Vol. 8, No. 5, pp. 47-58.
  7. Yoon, S. W. and Park, Y., 2009, "Comparison of Natural Frequency of Domestic and Foreign Long-spaned Structure ", Journal of the Korean association for shell and spatial structures, Vol. 9 No. 3, pp. 79-85.
  8. Cho, J. U. and Han, M. S., 2013, "Structural strength analysis according to the configuration of speaker placer with wall hanger type ", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 12, No. 1, pp. 1-8.