首页|考虑接地区域应力分布特性的轮胎力分析

考虑接地区域应力分布特性的轮胎力分析

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为了更精准地控制车辆,预估车辆状态,文章提出一种考虑接地区域实际应力分布的修正轮胎刷子模型.首先,使用ABAQUS软件建立了 205/55 R16型子午线轮胎的有限元模型,搭建轮胎静力学验证台架,利用径向刚度法验证有限元模型的静力学有效性.通过改变有限元负载、胎压得到轮胎接地印迹区域X向中心和Y向中心线的垂向应力分布数据,使用Matlab拟合工具箱拟合出应力分布公式,考虑X、Y向的权重系数,拟合出接触面的公式.将接触面应力分布代入刷子模型中,对轮胎滑移区进行优化计算.将优化后的模型与初始刷子模型和魔术公式模型进行对比,结果表明:建立的修正刷子模型可对轮胎纵向力、侧向力进行更加准确的估计.
Tire force analysis considering the stress distribution characteristics in the ground area
In order to control the vehicle more accurately and predict the state of the vehicle,a modified tire brush model considering the actual stress distribution in the ground area is proposed.Firstly,the finite element model of 205/55 R16 radial tire is established by ABAQUS software,the tire statics verification platform is set up,and the static validity of the finite element model is verified by radial stiffness method.Secondly,by changing the finite element load and tire pressure,the vertical stress distribution data of the tire grounding blot area in the X-center and Y-center line were obtained.The stress distribution formula is fitted using Matlab fitting toolbox,and the formula of the contact surface is fitted considering the weight coefficients in the X and Y directions.Finally,the stress distribution of the contact surface is substituted into the brush model to optimize the calculation of the tire slip zone.Comparing the optimized model with the initial brush model and the magic formula model,the results show that the modified brush model can estimate the longitudinal and lateral force of the tire more accurately.

brush modeltire force estimationfinite elementstress distribution

孙越、李波、贝绍轶

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江苏理工学院汽车与交通工程学院,江苏常州 213001

清华大学苏州汽车研究院,江苏苏州 215200

刷子模型 轮胎力估计 有限元 应力分布

2024

江苏理工学院学报
江苏技术师范学院

江苏理工学院学报

CHSSCD
影响因子:0.369
ISSN:2095-7394
年,卷(期):2024.30(6)