摘要
摇枕是薄壁复杂构件,是转向架关键部件之一,其有限元仿真准确性对于疲劳寿命分析具有很大的影响。文章以转K6摇枕为对象,基于摇枕静载试验和实测结果,分别构建了多个不同接触系数的有限元模型,分析了接触条件对测点计算应力的影响。结果表明,转K6摇枕结构应力的有限元仿真中,接触条件的摩擦系数的影响明显,其最佳摩擦系数取值为0.4。
Bolster is a thin-walled complex component and one of the key components of bogies.The accuracy of finite element simulation has a great impact on fatigue life analysis.In this paper,based on the static load test and measured results of K6 swing bolster,several finite element models with different contact coefficients are constructed,and the influence of contact conditions on the calculated stress of the measuring point is analyzed.The results show that in the finite element simulation of the stress of the rotating K6 bolster structure,the influence of the friction coefficient of the contact condition is obvious,and the optimum friction coefficient is 0.4.
出处
《科技创新与应用》
2020年第13期73-74,共2页
Technology Innovation and Application
关键词
摇枕
K6转向架
有限元
接触分析
网格划分
bolster
K6 bogie
finite element
contact analysis
mesh generation