数字农科院2.0

Effect of rubber-tracked chassis roller on soil surface vertical stress distribution based on finite element method

文献类型： 外文期刊

作者： Zhuohuai Guan;Haitong Li;Tao Jiang;Licheng Xing;Min Zhang;Dong Jiang;Mei Jin

作者机构：

关键词： Finite element method;Roller;Rubber-tracked;Soil compaction;Stress

期刊名称： Journal of Terramechanics

ISSN： 0022-4898

年卷期： 2025 年 120 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Due to the flexible characteristics of the rubber track, the ground pressure distribution on the soil is uneven, which will greatly increase the risk of soil compaction. Roller in the tracked chassis is a key influencing factor. Therefore, accurate analysis of the effect of the rollers on soil surface vertical stress distribution is important. In this research, the simulation of soil surface vertical stress distribution under rubber track with different roller structures and arrangements was carried out and experimentally validated. Firstly, a load transfer model of the roller-rubber track-soil system was developed. Then, a FEM simulation model of the roller −rubber track-soil system was constructed. The effect a single roller structure and the arrangement of multiple rollers was analyzed. Finally, field tests were carried out to test the soil surface vertical stress distribution with rollers of uniform distribution and dense at both sides. Results showed that the stress peaks were 69.3 kPa and 62.4 kPa, respectively. The soil surface vertical stress under the roller-track contact location was more than twice the average over the whole track surface. The diameter of a single roller and the arrangement of multiple rollers were the most important factors on the stress distribution.

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