摘要
高速轴承是高速列车安全运行的重要部件,轴承运转过程中的动态特性直接影响轴承的使用寿命,采用最小部件之间创建面面接触的方式,建立高速轨道客车用双列圆锥滚子轴承的三维虚拟样机模型,利用ANSYS/LS-DYNA分别研究客车直线匀速行驶和额定速度下以最小转弯半径行驶两种工况下轴承运转过程的动态接触特性,得到轴承的速度特性、加速特性以及滚子承载分布状况、接触单元法向作用力时间历程变化曲线以及保持架的振动曲线,研究结论可以为高速轴承设计过程中模型构建方案的合理确定提供参考。
High speed bearings are key components for safe operation of high-speed train. There is aclose relationship between rolling contact behavior and the service life of roller bearing. A 3D virtualmodel for high speed railway double row tapered roller bearing is established using automatic surfaceto surface contact between minimum component, and a finite element analysis of dynamic contactcharacteristics of the bearing under straight-line driving and minimum radius steering underscheduled velocity is conducted respectively using ANSYS/LS-DYNA. Speed, acceleration ofbearing, load distribution of roller, time-history curve of contact element about second principal stressand vibration of holder is studied. The results can serve as reference in design and construction ofhigh speed bearing.
出处
《图学学报》
CSCD
北大核心
2015年第4期546-550,共5页
Journal of Graphics
基金
国家国际科技合作资助项目(2013DFB70350)
教育部人文社会科学研究专项资助项目(工程科技人才培养研究:12JDGC007)
安徽省自然科学基金资助项目(1408085QE99)
关键词
动力学
虚拟样机
高速轴承
dynamics
virtual model
ANSYS/LS-DYNA
high speed bearing
