摘要
基于LS-DYNA非线性有限元分析软件,建立具有复杂胎面花纹的175/65R14子午线轮胎三维有限元模型。通过轮胎径向刚度试验验证所建轮胎有限元模型的有效性,并在此基础上构造轮胎水滑仿真分析模型。使用ALE算法处理轮胎与水流间的流固耦合关系,仿真分析轮胎从静止到水滑现象产生的全过程,获得的轮胎临界水滑速度与经验公式的计算结果具有较好的一致性。3种不同花纹轮胎水滑速度仿真结果在趋势上与预期一致,进一步说明了有限元方法对轮胎水滑特性仿真评价的有效性。
The detailed model for 175/65R14 radial tire with 3D complex pattern was constructed by LS-DYNA finite element analysis software.The model was validated with experimental data of radial stiffness and numerical model of hydroplaning was obtained based on it.Meanwhile,the fluid-structure coupling was characterized by the algorithm of ALE.Through the numerical analysis,the whole tire hydroplaning phenomenon was simulated and critical hydroplaning speed was obtained,which was quite consistent with the theoretical value.Moreover,the effectiveness of model was further supported by comparison of hydroplaning speeds of tires with three different types of pattern.
出处
《橡胶工业》
CAS
北大核心
2011年第10期620-625,共6页
China Rubber Industry
关键词
子午线轮胎
水滑特性
临界水滑速度
有限元分析
radial tire
hydroplaning characteristics
critical hydroplaning speed
finite element analysis
