载重轮胎的轮印载荷分布特性试验研究

Experimental study on wheel load distribution characteristics of truck tires

[目的]旨在探究轮印载荷在加筋板上的分布特性。[方法]首先开展不同载荷工况下的加筋板轮压试验,获取载重轮胎与铝合金加筋板的接触面积和接触压力的变化形式,总结轮印载荷的基本分布规律。其次,通过试验数据和结果分析提出轮印载荷分布特性的二次多项式表达形式,并给出不同载荷下多项式参数的确定方法。最后,对比分析加筋板数值仿真与试验的应力响应结果。[结果]获得了载重轮胎在甲板上的载荷分布规律和表达方法。验证了所提轮印载荷分布形式的合理性。[结论]研究有助于对轮印载荷分布特性的理解,并对工程实际应用具有一定的参考意义。

[Objectives]This paper seeks to obtain the wheel load distribution characteristics of a truck tire on a stiffener plate.[Methods]First,stiffener plate experiments are carried out under wheel pressure with different axle load cases;the contact area and contact pressure changes between the tire and aluminum alloy stiffened plate are obtained;and the basic distribution law of wheel load is summarized in combination with the relevant literature.Second,based on the experimental results,a second-order polynomial hypothesis for wheel load distribution characteristics is given,and the parameters in the polynomial under different axle load cases are determined according to the experimental data.Finally,the stress response of the aluminum alloy stiffener plate is compared with a combination of numerical simulation and experimental results.[Results]The load distribution characteristics of a truck tire on a stiffener plate and the expressional method are obtained,and the rationality of the proposed wheel load distribution characteristics is proven.[Conclusion]The study of wheel load in this article is helpful for understanding the characteristics of wheel load distribution on stiffener plates,and provides certain references for engineering applications.