Torsional vibration characteristics of in-wheel motor considering the effect of sliding bearing
To analyze the multi-parameter coupled vibration of in-wheel motor,a coupled vibration model with six degrees of freedom was established,based on which the oil film stiffness and damping of sliding bearing,the generalized electromagnetic force,and the stiffnesses of stator shaft and bolt were identified.The vibration induced by electromagnetic force was calculated with the help of MATLAB /Simulink model.The results show that:the electromagnetic force produced by the interaction between permanent magnetic field and armature magnetic field will excite a new torsional vibration peak of the stator.According to the comparison of torsional vibrations at different speeds,it's pointed out that in-wheel motor endures bigger torsional vibration at low speed,which provides a new way to reduce the low speed jitter of electric vehicles.
NETL
NSTL
万方数据
维普
