CAJ | 학술논문

子午线轮胎的滚动阻力是影响汽车燃油经济性的一个基本因素,它受到越来越多的汽车生产商和消费者的重视.到目前为止,我国轮胎企业在降低轮胎滚动阻力方面所采取的措施主要是降低橡胶,特别是胎面胶的损耗因子,基本上很少从结构上考虑如何降低滚动阻力. 采用3D有限元分析法对特定的子午胎在不同负荷、不同速度下的滚动阻力进行了预测,在有限元模型的建立上,利用MSC.MARC软件,对子午胎的胎体、带束层、胎圈等部位采用了膜加强筋单元以及实体加强筋单元进行模拟,对橡胶材料则采用Yeoh材料模式来描述,橡胶的滞后损失由橡胶加工分析仪获得.所得的结果与实测值进行了比较,并获得了良好的效果.在此基础上,通过改变子午胎的结构设计参数以及橡胶的损耗因子,分别计算滚动阻力的变化,主要讨论结构设计参数变化对子午胎滚动阻力的影响.
자오선륜태적곤동조력시영향기차연유경제성적일개기본인소,타수도월래월다적기차생산상화소비자적중시.도목전위지,아국륜태기업재강저륜태곤동조력방면소채취적조시주요시강저상효,특별시태면효적손모인자,기본상흔소종결구상고필여하강저곤동조력. 채용3D유한원분석법대특정적자오태재불동부하、불동속도하적곤동조력진행료예측,재유한원모형적건립상,이용MSC.MARC연건,대자오태적태체、대속층、태권등부위채용료막가강근단원이급실체가강근단원진행모의,대상효재료칙채용Yeoh재료모식래묘술,상효적체후손실유상효가공분석의획득.소득적결과여실측치진행료비교,병획득료량호적효과.재차기출상,통과개변자오태적결구설계삼수이급상효적손모인자,분별계산곤동조력적변화,주요토론결구설계삼수변화대자오태곤동조력적영향.
The rolling resistance of radial tires is an essential factor influencing the fuel economy,it has been received more attention by automakers and consumers.At present,the reduction of rolling resistance is mainly to decrease the hysteretic loss factor of the rubber material,especially tread rubber.There are no considerations from the tire construction. In this paper,3D finite element method is used to predict the roiling resistance of the radial tire in different load and different velocity.About the FEA model,using the MSC.MARC,the membrane rebar element was used to describe the tire carcass,belt and bead.Yeoh model was used to describe the rubber materials.The hysteretic loss factors of the rubber materials are obtained by RPA.The calculated values arecompared with experimental results.The good results had been obtained.Then through changing some tire design parameters calculated the rolling resistance.The relationship between the tire design parameters and roiling resistance has been demonstrated.