Analysis of Tire Tractive Performance on Deformable Terrain by Finite Element-Discrete Element Method

Journal of Computational Science and Technology

Hiroshi NAKASHIMA¹  Yuzuru TAKATSU¹ 

[1] Graduate School of Agriculture, Kyoto University

关键词: Soil-Tire System;    Interaction;    FEM;    DEM;    Contact;    Traction;   

DOI  :  10.1299/jcst.2.423

学科分类：地球科学(综合)

来源: Japan Academy

【 摘 要 】

References(20)Cited-By(4)The goal of this study is to develop a practical and fast simulation tool for soil-tire interaction analysis, where finite element method (FEM) and discrete element method (DEM) are coupled together, and which can be realized on a desktop PC. We have extended our formerly proposed dynamic FE-DE method (FE-DEM) to include practical soil-tire system interaction, where not only the vertical sinkage of a tire, but also the travel of a driven tire was considered. Numerical simulation by FE-DEM is stable, and the relationships between variables, such as load-sinkage and sinkage-travel distance, and the gross tractive effort and running resistance characteristics, are obtained. Moreover, the simulation result is accurate enough to predict the maximum drawbar pull for a given tire, once the appropriate parameter values are provided. Therefore, the developed FE-DEM program can be applied with sufficient accuracy to interaction problems in soil-tire systems.

【 授权许可】

Unknown