轮胎与转鼓之间相互作用的有限元分析

Nonlinear Finite Element Analysis Between Tire and Drum

利用三维非线性有限元分析软件———MSC.MARC软件,研究了轮胎材料的非线性、接触非线性以及大变形等复杂的力学特性,建立了轮胎的三维非线性有限元分析模型;分析了轮胎在不同转鼓半径下的接触法向力、接触面积和接触印痕之间的关系。结果表明:转鼓半径对轮胎接触法向力、接触面积等都有显著影响。随转鼓半径增大,接触法向力分布趋于平面时的接触法向力分布,接触印痕面积也增大;转鼓半径越大,其模拟平面路面效果越好。

By means of the nonlinear finite element analysis commercial code, MSC. MARC, comprehensively thought of the material non-linearity, geometric non-linearity and contact non-linearity, a three-dimensional finite element model for 185/70R14C tire was built in the numerical studies. The relationship between the contact normal force, area of tire footprint, and footprint of tire under different radius of drum was discussed. Results show that the radius of drum has significant effect on the contact normal force and the area of tire footprint. According to the increase of the radius of drum, the area of tire footprint becomes larger. The larger the radius of drum is, the better the simulation of flat rigid road surface.