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http://dx.doi.org/10.14775/ksmpe.2020.19.04.093

A Numerical Analysis for the Washboarding Phenomenon on the Top Surface of Fine Powders Using the Discrete Element Method  

Lee, Seoungjun (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
Park, Junyoung (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.19, no.4, 2020 , pp. 93-98 More about this Journal
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.
Keywords
Discrete Element Method; Washboarding; Powder;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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