Abstract In the present study, the effect of vertical load, tire inflation pressure and soil moisture content on power loss in tire under controlled soil bin conditions were investigated. Also a finite element model of tire-soil interaction in order to achieve a suitable model for predicting power loss in tire was created. Increasing the vertical load on the tire had a noteworthy impact on increasing the tire contact volume with the soil, reducing the percentage of slip, and increasing the rolling resistance; although, reducing the load on the tire had the opposite effect. At a constant inflation pressure, by increasing the vertical load on the tire, the amount of power loss due to the rolling resistance and the total power loss in the tire increased. Increase in soil moisture content increased the power loss caused by slip. Increasing the inflation pressure at a constant vertical load, also increasing the soil moisture content, led to an increase in the power loss caused by rolling resistance, and increase total power loss. The obtained error for estimating power loss of rolling resistance and total power loss was satisfactory and confirmed the acceptability of the model for power loss estimation.

中文翻译：

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轮胎和土壤对功率损耗的影响：测量和与有限元模型结果的比较

摘要 在本研究中，研究了在受控土壤仓条件下垂直载荷、轮胎充气压力和土壤含水量对轮胎功率损失的影响。还创建了轮胎-土壤相互作用的有限元模型，以实现预测轮胎功率损失的合适模型。增加轮胎的垂直载荷对增加轮胎与土壤的接触体积、降低滑移率、增加滚动阻力有显着影响；但是，减少轮胎上的负载会产生相反的效果。在恒定的充气压力下，通过增加轮胎上的垂直载荷，滚动阻力导致的功率损失量和轮胎中的总功率损失增加。土壤含水量的增加增加了滑移引起的功率损失。在恒定垂直载荷下增加充气压力，同时增加土壤含水量，导致滚动阻力引起的功率损失增加，并增加总功率损失。估计滚动阻力和总功率损失的功率损失获得的误差是令人满意的，证实了功率损失估计模型的可接受性。