Tire burst is one of the hot issues in automobile market. Based on the tire burst problem of all-steel radial tire, the shear strain and strain energy density at the end of the belt layer are analyzed to extend the tire durability. A multi-objective optimization model was established by finite element analysis, and the function constraints conditions were set. The optimization scheme was determined using differential evolution (DE) method. The finite element simulation and the durability test of tire specimen show that tire performance has greatly improved after the optimization. The results show that the combination of the finite element analysis technique and the multi-objective optimization method can effectively reduce a lot of labor, material, and financial resources in the structural optimization of mechanical products.

爆胎是汽车市场的热点问题之一。针对全钢子午线轮胎爆胎问题，分析了带束层末端的剪切应变和应变能密度，以延长轮胎的耐久性。通过有限元分析建立了多目标优化模型，并设置了函数约束条件。优化方案是使用差分进化（DE）方法确定的。轮胎试件的有限元仿真和耐久性试验表明，优化后的轮胎性能有了很大的提高。结果表明，将有限元分析技术与多目标优化方法相结合，在机械产品结构优化中可以有效减少大量的人力、物力、财力。