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Evaluation of Shock-Absorbing Performance of Three-Different Types of Bicycle Suspension Systems

자전거에서 서스펜션 종류에 따른 인체영향 시뮬레이션

  • Chung, Kyung-Ryul (Wellness Technology Center, Korea Institute of Industrial Technology) ;
  • Hyeong, Joon-Ho (Wellness Technology Center, Korea Institute of Industrial Technology) ;
  • Kim, Sa-Yup (Wellness Technology Center, Korea Institute of Industrial Technology)
  • 정경렬 (한국생산기술연구원 웰니스시스템개발단) ;
  • 형준호 (한국생산기술연구원 웰니스시스템개발단) ;
  • 김사엽 (한국생산기술연구원 웰니스시스템개발단)
  • Received : 2010.01.07
  • Accepted : 2010.05.11
  • Published : 2010.07.01

Abstract

In this study, a front suspension system, which is mounted on the handle itself, was suggested because of its light weight and cost efficiency. The shock absorption was evaluated for the three types of suspension models; non-suspension, suspension on front forks (existing model), and suspension on handle (suggested model). The human body model was used for performing impact simulation for comparing the shock absorption for the suspension models. The result of the simulation shows that shock absorption for the proposed suspension model was not as good as that for the front fork suspension model. Nevertheless, the shock absorption observed for the proposed suspension model was significant when compared to the non-suspension model. Consequently, the proposed suspension model could be applied to lightweight bicycles.

본 연구에서는 소형자전거의 핸들에 적용할 수 있는 전방 서스펜션을 제안하고 시뮬레이션을 통해 충격흡수 성능을 평가하였다. 서스펜션이 없는 경우, 기존의 전방포크서스펜션이 장착된 경우 그리고 제안된 핸들서스펜션이 장착된 경우 등 3가지 서스펜션 종류에 대해 인체모델을 이용한 주행시뮬레이션을 수행하여 각각의 완충성능을 비교평가 하였다. 시뮬레이션 결과 제안된 핸들 서스펜션의 경우 손과 머리에 전달된 가속도가 기존의 전방포크서스펜션이 장착된 경우보다 크게 측정되었지만 서스펜션이 없는 자전거의 경우보다는 현저히 작게 측정되었다. 이 같은 결과는 제안된 핸들 서스펜션이 상당한 완충 성능을 보여주었으며 이는 경량화가 중요한 소형자전거에 적용이 가능할 것으로 보인다.

Keywords

References

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