Abstract This paper presents a novel modelling technique to compute the interaction between an 8x4 off-road truck and gravelly soil (sand with gravel soil). The off-road truck tire size 315/80R22.5 is modelled using the Finite Element Analysis (FEA) technique and validated using manufacturer-provided data in static and dynamic responses. The gravelly soil is modelled using Smoothed-Particle Hydrodynamics (SPH) technique and calibrated against physical measurements using pressure-sinkage and direct shear-strength tests. The tire-gravelly soil interaction is captured using the node symmetric node to segment with edge treatment algorithm deployed for interaction between FEA and SPH elements. The model setup consists of four tires presenting the four axles of the truck, the first tire is a free-rolling steering tire, the second and third tires are driven tires and the fourth tire is a free-rolling push tire. The truck tires-gravelly soil interaction is computed and validated against physical measurements performed in Goteborg, Sweden. The effect of gravelly soil compaction and truck loading on the tire performance is discussed and investigated.

中文翻译：

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使用先进的计算技术开发和验证越野轮胎-砾石土壤相互作用

摘要 本文提出了一种新的建模技术来计算 8x4 越野卡车与砾石土壤（沙子与砾石土壤）之间的相互作用。越野卡车轮胎尺寸 315/80R22.5 使用有限元分析 (FEA) 技术建模，并使用制造商提供的静态和动态响应数据进行验证。砾石土壤使用平滑粒子流体动力学 (SPH) 技术建模，并使用压力下沉和直接剪切强度测试根据物理测量进行校准。轮胎-砾石土壤相互作用使用节点对称节点进行分段，边缘处理算法部署用于 FEA 和 SPH 元素之间的交互。模型设置由四个轮胎组成，代表卡车的四个轴，第一个轮胎是自由滚动的转向轮胎，第二和第三个轮胎是驱动轮胎，第四个轮胎是自由滚动的推动轮胎。根据在瑞典哥德堡进行的物理测量计算并验证卡车轮胎-砾石土壤相互作用。讨论和研究了碎石土壤压实和卡车装载对轮胎性能的影响。