Open AccessSimulation study on tractive performance of off-road tire based on discrete element method
Author(s) -
Zhou Lin,
Junxia Gao,
Qiao Li,
Cheng Hu
Publication year - 2020
Publication title -
mathematical biosciences and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.451
H-Index - 45
eISSN - 1551-0018
pISSN - 1547-1063
DOI - 10.3934/mbe.2020215
Subject(s) - bin , discrete element method , traction (geology) , torque , engineering , calibration , geotechnical engineering , automotive engineering , simulation , structural engineering , mathematics , mechanical engineering , mechanics , statistics , physics , thermodynamics
In order to improve the applicability and prediction accuracy of the existing simulation test methods of vehicle tractive performance on sandy soil, the off-road tire model using the discrete element method (DEM) under each operating condition is separately established in this paper. The contact parameters of DEM model are calibrated by rubber-sand friction test and soil bin test combined with corresponding simulation test. On this basis, the tire-sand simulation model is calculated under straight and inclining driving conditions, and the variation law of drawbar pull, torque, tractive efficiency and sinkage is obtained. This paper proves the feasibility of DEM simulation in studying vehicle tractive performance, and also provides a systematic parameter calibration method for improving the accuracy of DEM simulation, which is of great significance to enrich vehicle testing methods.