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2021 Vol.12, Issue 3 Preview Page

General Article

2D soil-bucket simulation using material point method for efficient earthwork modeling
Jeonghwan Kim1
,
Jongwon Seo2*
,
Daeyong Um3*
,
Dongeun Lee4
1Assistant Professor, Department of Civil Engineering, Korea National University of Transportation, Chungju, South Korea
2Professor, Department of Civil and Environmental Engineering, Hanyang University, Seoul, South Korea
3Professor, Department of Civil Engineering, Korea National University of Transportation, Chungju, South Korea
4Professor, School of Architecture and Civil Engineering, KyungPook National University, Daegu, South Korea
*Corresponding Author
30 September 2021. pp. 251-259
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Abstract

Since earthwork is quite repetitious, there has been a lot of research towards developing autonomous excavators. To automated earthwork equipment such as excavator and dozer, task planning (i.e. task sequence and location) play a critical role to execute automated earthwork as well as to increase work productivity. Soil-bucket interaction must be simulated to generate the task planning of an automated equipment, and, in this study, MPM (Material Point Method) were used to perform two-dimensional soil simulations. The strategy of determining the Lamé parameters that best show soil deformation was applied to the study when excavating with excavators. A game engine was used to test 15 different parameter combinations to visually check the changes in soil. It is expected that implementing more realistic excavation simulations can leads to increase the efficiency of automated excavators. More realistic excavation simulations should improve the effectiveness of autonomous excavators, according to the researchers.

Keywords
excavation
soil-tool interaction
earthwork
material point method
simulation
References
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Information
  • Publisher :Sustainable Building Research Center (ERC) Innovative Durable Building and Infrastructure Research Center
  • Publisher(Ko) :건설구조물 내구성혁신 연구센터
  • Journal Title :International Journal of Sustainable Building Technology and Urban Development
  • Volume : 12
  • No :3
  • Pages :251-259
  • Received Date : 2021-09-09
  • Accepted Date : 2021-09-30
  • DOI :https://doi.org/10.22712/susb.20210020
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