Influence of wheel polygon on vehicle vibration and wheel/rail force
SONG Zhikun
YUE Renfa
HU Xiaoyi
LI Xiang
Abstract：For the polygonal wheel phenomenon becoming increasingly prominent,a rigid-flexible coupling vehicle system dynamics model is established in ANSYS and SIMPACK considering the flexible wheelset.The influence of polygonal wheels on the vehicle vibration and the wheel rail contact force is studied.The results show that the fluctuation of the wheel/rail vertical force in-creases with the increase of the polygon wave depth,but does not increase with the increase of the polygon.The bending vibration frequency of the wheel pair can be coupled with the nod fre-quency of the wheel set and the rotating arm.If the vibration frequency generated by the polygon of the wheel is in the range of the frequency,the resonance will occur.According to the wheel/rail force upper limit value 170 kN,the 1～20 polygon wave depth limit value at the speed of 300 km/h is proposed,especially the wave depth of the 11 wheel polygon is smaller than 0.07 mm.
Keywords：dynamicpolygonflexible wheelvehicle vibrationwheel/rail force
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 88-93 )