DOI QR코드

DOI QR Code

Structural Safety Analysis of Electric Kickboard According to Shape of Connection Parts Using Finite Element Analysis

유한요소해석 기반의 전동 킥보드 연결부 형상에 따른 구조적 안전성 분석

  • Kim, Min Gyu (Department of Mechanical Engineering, Keimyung University) ;
  • Kim, Jung Jin (Department of Mechanical Engineering, Keimyung University)
  • 김민규 (계명대학교 기계공학과) ;
  • 김정진 (계명대학교 기계공학과)
  • Received : 2021.10.06
  • Accepted : 2021.10.19
  • Published : 2021.12.31

Abstract

Electric kickboards are inviting attention as next-generation transportation systems with their number of users increasing rapidly every year. However, the number of related accidents similarly increases with the increase in the number of users. The purpose of this study is to analyze the structural safety of electric kickboards according to the shape of the connection parts. For this purpose, four different shapes of the connection parts, i.e., cube, cylinder, toroid, and divided cube were selected. Subsequently, the safety was analyzed based on the finite element (FE) analysis under the front collision scenario. The results showed that the shape of the divided cube induced the lowest von Mises stress and the highest safety factor amongst the four models. Moreover, only the shape showed a safety factor higher than 1. However, the shape of the cylinder exhibited the lowest structural vulnerability. These results demonstrate the importance of the shape of the connection part in maintaining the overall safety of an electric kickboard.

Keywords

Acknowledgement

본 과제 (결과물)는 교육부와 한국연구재단의 재원으로 지원을 받아 수행된 디지털 신기술 인재양성 혁신공유대학사업의 연구 결과입니다.

References

  1. Kim, S. J., Lee, G. J., Choo, S. H. and Kim, S. H., "Study on Shared E-scooter Usage Characteristics and Influencing Factors," Journal of the Korea Institute of Intelligent Transport Systems, Vol. 20, No. 1, pp. 40~53, 2021. https://doi.org/10.12815/kits.2021.20.1.40
  2. Trivedi, T. K., Liu, C., Antonio, A. L. M., Wheaton, N., Kreger, V., Yap, A., Schriger, D. and Elmore, J. G., "Injuries Associated With Standing Electric Scooter Use," Journal of the JAMA Network Open, Vol. 2, Issue. 1, pp. 1~9, 2019.
  3. Bekhit, M. N. Z., Fevre, J. L. and Bergin, C. J., "Regional healthcare costs and burden of injury associated with electric scooters," Journal of the Injury, Vol. 51, Issue 2, pp. 271~277, 2020. https://doi.org/10.1016/j.injury.2019.10.026
  4. Mesicek, J., Jancar, L., Ma, Q. P., Hainys, J., Tanski, T., Krpec, P. and Pagac, M., "Comprehensive View of Topological Optimization Scooter Frame Design and Manufacturing," Journal of the Symmetry, Vol. 13, Issue 7, pp. 1~14, 2021.
  5. Chun, S. Y., Seong, K. W., Park, H. I.,, Kim, I. S. and Kang, S. K., "Structure-Vibration Analysis of Electric Scooter Frame," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 15, Issue 1, pp. 116~121, 2016. https://doi.org/10.14775/ksmpe.2016.15.1.116
  6. Choi, K. K. and Cho, J. U., "A Study on Structural Analysis at Front Collision According to the Shape of Electric Kick Board," Journal of the Korean Society of Mechanical Engineers, Vol. 22, No. 3, pp. 457~462, 2020.
  7. Fadzly, M. K., Munurah, A., Shayfull, Z. and Saad, M. S., "Ergonomic study and static analysis for new design of electric scooter," Journal of the AIP Conference Proceedings, Vol. 1885, Issue. 1, 2017.
  8. Hwang, Y. L. and Cheng, J. K., "The Dynamic Analysis and Simulation of Electric Scooter," Journal of the Applied Mechanics and Materials, Vol. 479~480, pp. 365~368, 2014.