摘要
以185/60R14半钢子午线轮胎为参考轮胎,通过改变断面高和改变断面宽两种方式构建了不同扁平率的一系列轮胎模型,采用ABAQUS/Standard软件对不同高宽比的轮胎进行了系统的研究。结果表明,通过减小断面高和增大断面宽两种方式实现轮胎的扁平化,将会产生不同的效果:前者会导致轮胎胎圈部三角胶内的应变能密度明显增大:后者则会使带束层帘线拉力的最大值明显降低,带束层帘线中部的应力状态由受压变为受拉,轮胎胎冠部橡胶结构危险区域的Mises应力和应变能密度均明显减小,对胎侧部和胎圈部的力学行为影响则很小。由此,可以利用增大胎冠部宽度而保持轮胎其他部位结构不变的简单方法实现子午线轮胎的扁平化。
Based on 185/60R14 PCR tire, the finite element models for different aspect ratios were constructed and analyzed with ABAQUS/Standard. The numerical results indicate that the different mechanical behaviors will be obtained with two different methods used to decrease the aspect ratio of tire, altering the tire＇s sectional height or altering the sectional width. For the former, the mechanical performance around bead area is deteriorated with the deformation and stress increasing greatly. For the latter, the max tension force on belt cords decreases greatly and the stresses at the middle of belt cords change from compress to tension state. Both the Mises stress and strain energy density at the probably dangerous area of the rubber structure in tire crown decrease obviously. In addition, such change in sectional width has little effect on the deformation on tire side and bead. Hence, it is recommended to make the tire be flater by increasing the width of tire crown.
出处
《力学季刊》
CSCD
北大核心
2007年第2期209-216,共8页
Chinese Quarterly of Mechanics
关键词
子午线轮胎
扁平化
有限元分析
radial tire
aspect ratio
finite element analysis
