Dynamics of Automatic Passenger Mover Vehicle with Single axle Tire Running Gear

Abstract:

The dynamical equations of an automatic passenger mover(APM) vehicle with middle guiding single axle tire running gears were derived by using linearized tire model, in which side force and rolling contact effect on running tire were taken into account. A simulation model of APM vehicle based on Simulink environment was built with object oriented programming technique, and the effects of contact statues between guiding tire and rail on curving performance and ride quality were studied. The simulation results show that the preload force on guiding tire do not improve curving performance but significantly worsen lateral ride quality, whereas the gap between guiding tires and rail will increase the running tire side force and guiding tire radial force on curve. The gap between guide tires and rail should be controlled in the range of 0~5 mm considering the curving performance and ride quality of APM vehicle.

Key words:automatic passenger mover(APM); tire; running gear; dynamics; curving performance; ride quality