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道路车辆的性能与轮胎的静态和动态性能有直接关系。轮胎起支承和控制车辆的作用,且轮胎在不同的轮胎-道路相互作用和负荷条件下必须具有好的耐久性。轮胎固有特性取决于轮胎的不同结构和几何参数、轮胎帘布层材料性能和负荷条件。考虑到轮胎特性曲线的模拟和分析,过去已经以多层轮胎结构的非线性分析、假设可忽略的层与层之间的剪切相互作用为基础,对变形和应力场、振动特性进行了广泛的分析研究。在本论文中,为了分析不同应力场,把着重点放在带束层和胎体帘布层的帘布层间剪切应力与额定负荷和充气压力之间的关系。利用了以轮胎的复合结构元件为基础的子午线载重轮胎的非线性有限元模型。通过比较正常的力-变形特性和从模型(具有实验室定性检测数据的模型)中获得的接触印痕几何形状确认了本模型的有效性。用本轮胎模型进行了有关在宽范围的负荷条件下多层帘布层层间剪切相互作用的参数研究,以获取会导致负荷状态下多层轮胎结构内的较小最大值应力的更合乎需要的一组结构参数。已经获得用于评估二维轮胎-道路接触压力分布与充气压力和额定负荷之间关系的多项式函数。还采用该轮胎模型研究了充气轮胎结构的自由振动性能。研究了独立结构参数对子午线载重轮胎的负荷和与压力有关的自然频率。研究结果表明,所推荐的以测定几何形状和轮胎结构材料性能为基础的有限元轮胎模型对轮胎设计和提高重型车辆性能是很有益处的。
The performance of road vehicles is directly related to the static and dynamic performance of the tire. Tires play the role of supporting and controlling the vehicle, and the tires must have good durability under different tire-road interactions and loading conditions. The inherent characteristics of a tire depend on the different structural and geometrical parameters of the tire, the material properties of the tire ply and the load conditions. Considering the simulation and analysis of tire characteristic curves, in the past non-linear analysis of multilayer tire structures has been conducted based on the assumption that there is negligible shear interaction between layers and the deformation and stress fields and vibration characteristics are extensive Analysis and Research. In this paper, in order to analyze different stress fields, the emphasis is placed on the relationship between the shear stress and the rated load and inflation pressure of the plies of belt and carcass plies. A nonlinear finite element model of a radial truck tire based on composite structural elements is used. The validity of this model was confirmed by comparing the normal force-deformation behavior with the contact impression geometry obtained from the model (a model with lab qualitative test data). Using the present tire model, parametric studies on the interlaminar shear interaction of multilayered plies under a wide range of loading conditions were conducted in order to obtain a more desirable result that would result in a smaller maximum stress within the multilayered tire structure under load A set of structural parameters. Polynomial functions have been obtained for assessing the relationship between two-dimensional tire-road contact pressure distribution and inflation pressure and rated load. The tire model was also used to study the free vibration behavior of pneumatic tire structures. The load of independent radial load and the natural frequency related to pressure were studied. The results show that the proposed finite element tire model, based on the determination of geometry and tire structural material properties, is good for tire design and for improving heavy vehicle performance.