免充气轮胎结构的接地性能分析

盖胜磊，吴芷红^*

山东交通学院汽车工程学院，山东 济南  250357

摘要：采用ABAQUS软件建立繁花结构式免充气轮胎的三维有限元模型，研究阵列数为20、30、40的免充气轮胎的压力分布和刚度，分析其接地性能。结果表明：随着轮胎下沉量增加，轮胎出现不规则变形，轮胎受压区域中部的变形较大，导致轮胎两侧应力增大，阵列数较大的免充气轮胎在较大下沉量时接地连续，性能更好。辐条厚度对免充气轮胎径向刚度的影响更大，可以通过平衡辐条厚度和阵列数的方式获得不同特性而刚度一致的轮胎。

关键词：免充气轮胎；有限元分析；下沉量；接地压力；径向刚度

Analysis of grounding performance of non-inflatable tire structure

GAI Shenglei, WU Zhihong^*

School of Automotive Engineering, Shandong Jiaotong University, Jinan 250357, China

Abstract：Using Abaqus software to establish a three-dimensional finite element model of a complex structure non inflatable tire, the pressure distribution and stiffness of non inflatable tires with arrays of 20, 30, and 40, and grounding performance are studied. The results show that for increasing tire sinking, the tire shows irregular deformation, and the deformation in the middle of the tire compression area is greater, resulting in an increase in stress on both sides of the tire. Non inflatable tires with a larger number of arrays show better performance when grounded continuously at larger sinking amounts. The thickness of spokes has a greater impact on the radial stiffness of non inflatable tires, and a tire with different characteristics and consistent stiffness can be obtained by balancing the thickness of spokes and the number of arrays.

Keywords:non-inflatable tire; finite element analysis; sinking amount; ground pressure; radial rigidity