Analysis on wheel-rail lateral force of the bogie with independently rotating wheels for rear wheelsets

The affecting forces of bogies with traditional fixed wheelsets,independently rotating wheels and independently rotating wheels for rear wheelsets are analyzed theoretically.By comparing curving performance of three kinds of bogies based on wheel rail lateral force,it is found that the bogie of independently rotating wheels for rear wheelset is the best one.The dynamic calculating model of a vehicle with independently rotating wheels for rear wheelsets is established.The affecting forces of bogie are analyzed by numerical simulation methods.The results show that theoretical and simulation analyses are identical basically. 1 tab,4 figs,7 refs.