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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A Numerical Analysis for the Washboarding Phenomenon on the Top Surface of Fine Powders Using the Discrete Element Method

분말에서 발생하는 Washboarding 현상에 대한 이산요소법을 이용한 수치해석적 연구

  • Lee, Seoungjun (Department of Mechanical Design Engineering, Kumoh National Institute of Technology) ;
  • Park, Junyoung (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
  • 이승준 (금오공과대학교 기계설계공학과) ;
  • 박준영 (금오공과대학교 기계설계공학과)
  • Received : 2020.02.05
  • Accepted : 2020.03.17
  • Published : 2020.04.30
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Abstract

Washboarding is a phenomenon in which a wavy shape occurs periodically and naturally on an unpaved road made of soil or gravel. This phenomenon causes high-frequency vibration of the traffic traveling on the road because of the height difference of the wave pattern, which may lead to vehicle failure. Consequently, associated research is needed concerning vehicle safety. Therefore, in this study, a numerical simulation was conducted using the discrete element method, which is often used for powder simulation. In contrast to previous studies, the results of this study demonstrate that washboarding can occur even in an environment of 1.5 m/s or less. However, the amount of washboarding is minimal. The study revealed that washboarding develops over time, such that sufficient development time is required before measurements are taken.

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References

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