Acta Agriculturae Zhejiangensis ›› 2024, Vol. 36 ›› Issue (6): 1400-1412.DOI: 10.3969/j.issn.1004-1524.20230887

• Biosystems Engineering • Previous Articles     Next Articles

Discrete element parameter calibration and testing of interaction between yellow lateritic red soil and trenching components

XIONG Houquan1(), JIANG Jie2,*()   

  1. 1. School of Mechanical and Electrical Engineering, Kunming University of Technology, Kunming 650051, China
    2. School of Engineering, Honghe University, Mengzi 661100, Yunnan, China
  • Received:2023-07-17 Online:2024-06-25 Published:2024-07-02

Abstract:

To solve the problem of missing interaction parameters between sugarcane planting machinery and planting soil, yellow lateritic red soil, one of the main sugarcane planting soil species in southern Yunnan, was selected for discrete element parameter calibration. Firstly, take the soil angle of repose as the response value, use the Box-Behnken optimization method of Design-Expert software to obtain the regression model of the soil angle of repose. With the measured angle of repose as the optimization goal, the relative errors between the simulated value and the measured value for different layers of soil are 1.76% and 2.54% respectively. Secondly, the range of contact parameters is measured through three physical tests, and the relative error of optimization for different layers is 1.61% and 2.29% respectively with the static sliding friction angle as the response value. The results indicate that the error between the simulated and measured values is relatively small, which can provide reference for the simulation parameters of the interaction between yellow lateritic red soil and soil contact components (65Mn steel).

Key words: yellow lateritic red soil, discrete element simulation, parameter calibration, clay

CLC Number: