轻型载重轮胎耐久性试验分析  

Durability Test Analysis of Light Truck and Bus

作　　者：邢程 蔡莹莹[1] XING Cheng;CAI Yingying(Giti Tire(China)R&D Center,Hefei 230601,China)

机构地区：[1]佳通轮胎(中国)研发中心,安徽合肥230601

出　　处：《轮胎工业》2023年第7期436-440,共5页Tire Industry

摘　　要：介绍轮胎耐久性试验机理,重点对比分析中国和美国的轻型载重轮胎耐久性试验标准差异及各自的特点。轮胎生热、垂直方向形变、行驶速度和橡胶老化均会影响其耐久性能;耐久性试验可分为室外测试法和室内测试法;中国和美国标准的轻型载重轮胎耐久性试验测试速度相当,前者的负荷和温度条件更苛刻,充气压力更高,更考验高充气压力时胎肩的耐久性能,后者更考验低充气压力时胎圈的耐久性能;一般轻型载重轮胎需要同时通过中国和美国标准规定的轮胎耐久性测试;可以根据产品性能目标,设计合适的耐久性试验条件进行验证。This paper introduced the mechanism of tire durability test,and focused on the comparative analysis of the difference of the durability tests of light truck and bus tires between China standard and the US standard and their respective characteristics.Tire durability was mainly affected by the heat build-up,vertical deformation,driving speed of the tire and rubber aging.In general,tire durability tests could be divided into outdoor test method and indoor test method.The test speed of tire durability test in China standard and the US standard was the same.However,in China standard,the test load and temperature conditions were more stringent;besides,the inflation pressure was higher,which was tougher for the tire shoulder.In contrast,in the US standard test method,higher requirement was put on the bead durability by testing at a low inflation pressure.Generally,the tires needed to pass the durability tests stipulated by both Chinese and US standards.Moreover,suitable durability test conditions could be designed for verification according to the product performance objectives.

关 键 词：轻型载重轮胎 耐久性能 试验标准 有限元分析 

分 类 号：U463.341[机械工程—车辆工程] O241.82[交通运输工程—载运工具运用工程]