Lateral Dynamics of Bogies with Independent Wheels

The dynamic model of bogies with independent wheels is proposed. The dynamic responses are calculated and compared forbogieswith independentwheels and conventionalwheelsets. Because there is no rotating restraint on an independent wheel, the longitudinal creepage force is very small or even equal to zero, so that the hunting motion is avoided. The study also shows that the friction factors of wheels/tracks affect the centering ability greatly.