24R21子午线轮胎接地和肩部耐久性能的协调设计

Balanced design of grounding and shoulder durability of 24R21 radial tire

针对子午线轮胎的接地和肩部耐久性能,以24R21型子午线轮胎为研究对象,基于ABAQUS软件进行建模分析,通过设计正交实验,研究了2#带束层宽度、厚度和角度的变化对接地和肩部耐久性能的影响。结果表明,2#带束层的设计角度对轮胎接地性能的影响最大,合适的设计角度可以优化轮胎的接地性能;2#带束层的设计厚度对肩部耐久性能的影响最大,宽度次之。对接地和肩部耐久性能进行了协调优化,在保证接地性能基本不变的情况下,改善了肩部耐久性能,并得出最优方案,即2#带束层的宽度为210 mm、厚度为24 mm、角度为26°。

Aiming at the grounding and shoulder durability of radial tire,taking 24R21 radial tire as the research object,the modeling analysis was carried out based on Abaqus software.Through the design of orthogonal experiment,the influence of 2#belt width,thickness and angle on the grounding and shoulder durability was studied.The results showed that the design angle of 2#belt had the greatest influence on the grounding performance of tire,and the appropriate design angle could optimize the grounding performance of tire.The design thickness of the 2#belt layer had the greatest influence on the durability of the shoulder,followed by the width.In this paper,the coordinated optimization of grounding and shoulder durability was carried out.The shoulder durability was improved while the grounding performance was basically unchanged.The optimal scheme of 2#belt was 210 mm width,24 mm thickness and angle 26°.