吉林大学学报(工学版)

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Simulation on dynamic behavior of dry soil ahead of the bulldozing plate with different cutting angles by DEM

Zhang Rui1, 2, Li Jian-qiao1, Xu Shu-cai1, Li Yin-wu1   

  1. 1.Key Laboratory of Terrainmachine Bionics Engineering, Ministry of Education, Jilin University, Changchun 130022, China; 2.Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China
  • Received:2006-07-04 Revised:2006-09-24 Online:2007-07-01 Published:2007-07-01
  • Contact: Zhang Rui

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Abstract: The nonlinear mechanical model of contact between soil particles was established based on the effects of liquid bridges on mechanical microstructure of soil and the basic Distinct Element Method (DEM) theory. The dynamic behaviors of dry soil ahead of the bulldozing plate with different cutting angles were simulated by DEM. The DEM simulations reappear the qualitative and the quantitative results by laboratory test accurately. Moreover, the mesocopic analyses by DEM explain the variational laws and the influence factors of dynamic macroscopic configurations of dry soil through soil particles motion in soil body.

Key words: agricultural engineering, dynamic behavior of soil, Distinct Element Method (DEM), macroscopic and mesoscopic simulation, cutting angle of the bulldozing plate

CLC Number: 

  • S152.9
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