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首页> 外文期刊>International journal of mechanics and materials in design >Finite element estimation of hysteretic loss and rolling resistance of 3-D patterned tire
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Finite element estimation of hysteretic loss and rolling resistance of 3-D patterned tire

机译：3-D花纹轮胎的滞后损耗和滚动阻力的有限元估计

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摘要

Some of energy supplied to the vehicle driven on road is dissipated through rolling tires due to the hysteretic loss of rubber compounds, so the hysteretic loss is considered as a sort of pseudo-force resisting the tire rolling. This paper is concerned with the numerical prediction of the hysteretic loss and the rolling resistance (RR) of 3-D periodic patterned tire. A 3-D periodic patterned tire model is constructed by copying 1-sector tire mesh in the circumferential direction. Strain cycles during one revolution are approximated by utilizing the 3-D static tire contact analysis, for which the strain values at Gaussian points in the elements which are sector-wise repeated in the same circular ring of elements are taken. The strain amplitude during one revolution of tire is determined by taking the maximum principal value of the half amplitudes of each strain components in the multi-axial state of strain. The hysteretic loss during one revolution is predicted in terms of the loss modulus of rubber compound and the maximum principal value of the half amplitudes of six strain components. Through the numerical experiments, the validity of the proposed prediction method is examined by comparing with the experiment and the dependence of RR on the tread pattern is also investigated.
机译：由于橡胶化合物的滞后损失，提供给在道路上行驶的车辆的能量通过滚动轮胎消散，因此，滞后损失被认为是一种抵抗轮胎滚动的伪力。本文涉及3D周期性花纹轮胎的滞后损耗和滚动阻力（RR）的数值预测。通过在圆周方向上复制1扇区轮胎网格来构造3-D周期性花纹轮胎模型。通过使用3-D静态轮胎接触分析，可以估算出一转的应变周期，为此，在单元的高斯点上获取应变值，该应变值在相同的单元圆环中按扇区重复。轮胎在旋转一圈时的应变幅值是通过在多轴应变状态下获取每个应变分量的半幅值的最大主值来确定的。根据橡胶混合物的损耗模量和六个应变分量的半振幅的最大主值来预测一转期间的磁滞损耗。通过数值实验，通过与实验的比较，验证了所提预测方法的有效性，并研究了RR对胎面花纹的依赖性。

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