Comparison of Numerical Modeling Methods for Soil Vibration Cutting

5th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Jiang, Jiandong^1 ; Zhang, Enguang^1

Zhejiang Prov. Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Zhejiang University of Technology, Hangzhou, China^1

关键词: Force oscillations;    Lagrange methods;    Model mechanisms;    Numerical modeling method;    Numerical simulation method;    Poor stability;    Soil vibrations;    Vibration cutting;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/301/1/012128/pdf
DOI  :  10.1088/1757-899X/301/1/012128

来源: IOP

【 摘 要 】

In this paper, we studied the appropriate numerical simulation method for vibration soil cutting. Three numerical simulation methods, commonly used for uniform speed soil cutting, Lagrange, ALE and DEM, are analyzed. Three models of vibration soil cutting simulation model are established by using ls-dyna.The applicability of the three methods to this problem is analyzed in combination with the model mechanism and simulation results. Both the Lagrange method and the DEM method can show the force oscillation of the tool and the large deformation of the soil in the vibration cutting. Lagrange method shows better effect of soil debris breaking. Because of the poor stability of ALE method, it is not suitable to use soil vibration cutting problem.