Study of Durability Effect Parameter in Inserting Bush into Suspension Link

서스펜션 링크의 부시 압입에 따른 내구 영향도 연구

  • Lee, Kyusik (Hyundai Motors Accelerated Durability Development Team)
  • 이규식 (현대자동차 가속내구개발팀)
  • Received : 2017.05.29
  • Accepted : 2017.06.28
  • Published : 2017.06.25

Abstract

Purpose: In recent years, weight reduction for improving fuel efficiency of the vehicle and cost reduction have been developed. The structure of suspension link is widely used as a single plate press structure which can reduce process and weight compared to existing pipe welding method. However, it was found that the lifetime of a single plate press structure is determined by initial defects that occurred during initial manufacturing rather than fatigue damage caused by driving. Methods: I research the mechanism of failure phenomenon of the single plate press assist arm of rear wheel. In addition, I investigate durability effect parameters to determine the link lifetime in inserting bush into single plate press process through durability test. Conclusion: I discover significant durability effect parameter in inserting bush into single plate press process. It is expected that the durability can be improved by suggesting a bush inserting process inspection guide for similar suspension link like single plate press structure.

Keywords

References

  1. Lee, I. K. et al. (2015). "Prediction of Shearing Life for Producing a Retainer FE Analysis". Transactions of Materials Processing. Vol. 24, No. 4, pp. 264-271. https://doi.org/10.5228/KSTP.24.4.264
  2. Iman Faridmehr et al. (2014). "Correlation between Engineering Stress-Strain and True Stress-Strain Curve". American Journal of Civil Engineering and Architecture, Vol. 2 No. 1, pp. 53-59. https://doi.org/10.12691/ajcea-2-1-6
  3. Susmel, L., Tovo, R. and Lazzarin, P. (2005). "The mean stress effect on the high-cycle fatigue strength from a multiaxial fatigue point of view". International Journal of Fatigue, Vol. 27, pp. 928-943. https://doi.org/10.1016/j.ijfatigue.2004.11.012
  4. Yoshida, T., Isogai., E, Sato, K. and Hashimoto, K. (2013). "Springback Problems in Forming of High- Strength Steel Sheets and Countermeasures". Nippon Steel Technical Report, No. 103.
  5. Bader, Q. and Kadum, E. (2014). "Mean Stress Correction Effects On the Fatigue Life Behavior of Steel Alloys by Using Stress Life Approach Theories". International Journal of Engineering & Technology, Vol. 14, No. 4, pp. 50-58.