新非自然平衡轮廓载重子午线轮胎设计及试验验证

Designing and Experimentally Verifying Heavy-load Radial Tire with New Unnatural Equilibrium Contour Theory

以载重子午线轮胎295/80R22.5为研究对象,利用新非自然平衡轮廓理论对其胎体轮廓进行重新设计。在此基础上,试制了具有新非自然平衡轮廓的轮胎样胎,并依据GB/T23663-2009对其径向、横向和纵向刚度进行测试。借助ABAQUS软件建立了新非自然平衡轮廓轮胎295/80R22.5的有限元分析模型,并对其静态接地压力分布、充气外轮廓以及径向、横向和纵向刚度进行了数值计算。试验测试与数值计算结果有较好的一致性。结果表明,本文建立的新非自然平衡轮廓轮胎的有限元分析模型具有较高的精度,可用其分析轮胎的综合性能。

The paper uses the new unnatural equilibrium contour theory to perform the structural design of the contour of the radial tire 295/80R22.5. It redesigns the prototype tire with the new unnatural equilibrium contour. The tire radial stiffness, lateral stiffness and longitudinal stiffness are tested according to GB/T23663-2009. The finite element model of the radial tire 295/80R22.5 with the new unnatural equilibrium contour is built with ABAQUS, and the tire-ground pressure distribution, contour dimension, radial, lateral and longitudinal stiffness of the radial tire are numerically simulated. The experimental results show good agreement with the numerical simulation results. All the results show that the finite element mode] of the new unnatural equilibrium contour tire we built in this paper has high accuracy and can be used to analyze the overall performance of a radial tire.