Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Structural Stability Analysis of Connectors for an Electric Handbike

휠체어 전동주행 보조기기용 커넥터의 구조안정성 해석

  • Seo, Han Wool (Department of Biomedical Engineering, Jung Won University) ;
  • Kim, Dae Dong (Department of Biomedical Engineering, Jung Won University) ;
  • Ko, Cheol Woong (Biomedical and Welfare Technology R&BD Group, Korea Institute of Industrial Technology) ;
  • Lee, Joon Hmm (OX Korea Inc.) ;
  • Bae, Tae Soo (Department of Biomedical Engineering, Jung Won University)
  • 서한울 (중원대학교 의료공학과) ;
  • 김대동 (중원대학교 의료공학과) ;
  • 고철웅 (한국생산기술연구원 의료복지그룹) ;
  • 이준흠 (오엑스코리아) ;
  • 배태수 (중원대학교 의료공학과)
  • Received : 2015.01.24
  • Accepted : 2015.04.21
  • Published : 2015.05.01
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Abstract

Electric handbike can be easily detachable to various sizes of manual wheelchair and the elderly and people with disabilities can use them easily. Therefore, connectors used for coupling between the handbike and manual wheelchair must secure structural stability for occupant safety. However, related research is rare. The aim of this study is to find the connector with highly structural stability by comparing static and dynamic mechanical characteristics among three typical connectors(a snatch lock, a slide latch, and a fastener) by computational simulations. To perform static and dynamic simulation, we referred to durability test based on Korean Standards and then calculated mechanical stresses in connectors. The results showed that the snatch lock addressed the lowest von-mises stress under the same mechanical condition. Therefore when using the combination of a handbike and a wheelchair, we concluded that the snatch lock is considered as the structurally stable connector to structural stability and usability.

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References

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