火车
有限元法
工程类
多边形(计算机图形学)
轴
振动
结构工程
磁道(磁盘驱动器)
机械工程
汽车工程
物理
声学
地图学
地理
帧(网络)
作者
Bowen Wu,Zhengyang Shang,Jiabao Pan,Rongyun Zhang,Peicheng Shi,Ping Xiao
标识
DOI:10.1080/00423114.2022.2035777
摘要
The formation cause of high-order wheel polygonization of high-speed trains is investigated. A modelling of wheelset/track interaction based on the finite element method (FEM) is set up. The stability of the wheelset-track system (WTS) is studied by using the complex eigenvalue analysis (CEA) based on the modal coupling theory. The dynamic response of the wheelset rolling on the rails is simulated by the transient dynamic analysis (TDA). The results show that the friction-induced vibration (FIV) of the WTS at about 540 Hz, which is composed of the fifth-order bending mode of the wheel axle and the antisymmetric yaw of the wheels, is the principal cause of the 23-order wheel polygon. The frequency of the FIV responsible for the 23-order polygonal wear hardly changes with the vehicle speed and the coefficient of friction (COF) between the wheel and rail, which coincides with the fact that the wheel polygon of high-speed trains in China tends to be frequency-fixed. The order of wheel polygon is inversely proportional to vehicle speed. The higher the wheel-rail COF and the vehicle speed, the faster the wheel polygonization evolves.
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