摘要
针对高速列车轴箱内置转向架抗侧滚刚度不足的问题,设计一种液压抗侧滚装置,在不增加一系垂向刚度的同时能显著提高车辆抗侧滚刚度。该装置在轮对两侧安装垂向液压缸,左右液压缸之间通过交叉管路连接以实现抵抗构架侧滚的功能。采用Zielke模型模拟管路流动,考虑油液压缩性建立非线性模型,开展特性仿真研究。结果表明:油腔结构参数对静态特性影响较大,交叉管路直径和长度对动态特性影响较大;重车工况下该装置能提供大于1.5 MN·m/rad的等效侧滚刚度,而等效垂向刚度仅为0.2 MN/m;在20 Hz以后的动态刚度显著增大,需设置合适的橡胶节点刚度以减少高频振动传递。
This paper proposes a hydraulic anti-roll device to solve the insufficient anti-roll stiffness of inside axle-box bogie for high-speed train,which can significantly enhance anti-roll stiffness without increasing the primary vertical stiffness of the vehicel.The vertical hydraulic cylinders of the device are installed on both sides of wheelset,and the left and right hydraulic cylinders are cross-connected through pipelines to realize the resistance to frame′s rolling.The Zielke model is used to simulate oil flow in pipelines,and the nonlinear model is established to study its properties by simulation,considering oil compressibility.The results show that the structural parameters of oil chambers have a great influence on the static properties,and the diameter and length of interconnected pipelines affect the dynamic properties significantly.In operating condition of heavy vehicle,the rolling stiffness is bigger than 1.5 MN·m/rad,while the vertical stiffness is only 0.2 MN/m.When excitation frequency is larger than 20 Hz,the dynamic stiffness will obviously increase.In order to reduce high-frequency vibration transimission,appropriate stiffness of rubber joint needs to be set.
作者
唐羽
罗仁
石怀龙
TANG Yu;LUO Ren;SHI Huailong(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China)
出处
《机械制造与自动化》
2023年第3期222-226,共5页
Machine Building & Automation
关键词
高速列车
轴箱内置转向架
液压抗侧滚装置
交叉管路
high-speed train
inside axle-box bogie
hydraulic anti-roll device
interconnected pipelines
