全钢子午线轮胎胎圈鼓包机理的有限元分析  

FEA of Bead Bulging of All-steel Radial Tire

作　　者：王志平[1] 裴权华[1] 王彩红[1] 陈宇 WANG Zhiping;PEI Quanhua;WANG Caihong;CHEN Yu(Aeolus Tyre Co.,Ltd,Jiaozuo 454001,China)

机构地区：[1]风神轮胎股份有限公司

出　　处：《轮胎工业》2019年第8期463-466,共4页Tire Industry

摘　　要：以18. 00R33全钢工程机械子午线轮胎为例,利用有限元技术分析负荷状态下高胎体帘布反包全钢子午线轮胎胎圈部位应力/应变分布,重点分析高模量钢丝帘线受力情况。结果表明:轮胎在负荷状态下胎体帘布反包钢丝帘线会出现局部受压缩应力的情况,在轮胎滚动过程中该区域钢丝帘线在拉伸应力和压缩应力之间循环波动,且随着负荷率的增大,波动幅度急剧增大,钢丝帘线易与橡胶剥离而导致脱层;轮胎实际损坏形式验证了有限元分析结果的准确性。Taking 18. 00 R33 all steel off-the-road radial tire as an example,the stress/strain distribution at the bead position of all steel radial tire with turn-up high carcass cord under load was analyzed by using finite element analysis(FEA) technology,with emphasis on the stress distribution of high modulus steel cord. The results showed that the local compression stress would appear on the turn-up steel cord of the carcass cord under the loading condition. During the rolling process of the tire,the stress of the steel cord in this area fluctuated between tension mode and compression mode,and with the increase of the loading ratio,the fluctuation magnitude increased sharply,which easily caused delamination of cord fabric from rubber.The FEA results were then verified by the actual damage form of the tire experimentally.

关 键 词：全钢子午线轮胎 胎圈 鼓包 机理 有限元分析 拉伸应力 压缩应力 

分 类 号：U463.341.5[机械工程—车辆工程] O241.82[交通运输工程—载运工具运用工程]