摘要
对载重子午线轮胎中钢丝帘线的变形和受力进行分析,获得其常见的弯曲变形和张力分布规律,在钢丝帘线的局部建模中可以作为有用的输入参数。以帘线捻角、捻距和中心半径等帘线的设计变量作为输入参数,提出一种多股帘线分层结构的高效建模方法,并对几种钢丝帘线进行建模。运用有限元分析方法对两种帘线在仅受拉伸以及拉伸与弯曲综合作用这两种情况下的轮胎变形进行仿真,得到的张力-位移曲线与试验得到的曲线吻合得很好,而且有限元仿真揭示了特征结构变形和塑性变形阶段,发现在受到拉伸和弯曲综合作用下一些未曾发现的局部应力和变形模式。另外,还提出一种帘线受力的试验测量方法。
The steel cord deformation and force of truck and bus radial tire were investigated to obtain the typical bending deformation and tension force distribution,which were useful input for the local scale modeling of the steel cord.A high efficient modeling approach for layered multi-strand cord structures was developed by utilizing cord design variables such as lay angle,lay length and radius of the strand centerline as input,and several types of steel cord were modeled by using the developed method.The pure tension for two cords and the combined tension-bending under various loading conditions relevant to tire deformation were simulated by finite element（FE） method.Good agreement was found between experimental and FE-determined tension force-displacement curves,and the characteristic structural and plastic deformation phases were revealed by the FE simulation.Furthermore,some interesting local stress and deformation patterns under combined tension and bending were found that had not previously been reported.In addition,an experimental cord force measurement approach was included.
出处
《橡胶工业》
CAS
北大核心
2013年第11期645-657,共13页
China Rubber Industry
基金
国家自然科学基金资助项目(51275265
51175286)
关键词
载重子午线轮胎
钢丝帘线
捻角
捻距
帘线受力测量
有限元分析
truck and bus radial tire
steel cord
lay angle
lay length
cord force measurement
finite element analysis
