Optimal offset distance of center plates in tram end bogies
The Skoda 15T tram utilizes a center plate offset structure in the end bogie,impacting the lateral force distribution between the front and rear wheelsets of the end bogie.This,in turn,influences the vehicle's dynamic performance on curves.To explore the optimal distance for the center plate offset in the end bogie,this article relies on the principle of minimizing the wheelset transverse force factor of the entire vehicle.According to the force analysis model of the tram when negotiating a circular curve,the deduced optimal distance of the end bogie center plate offset is determined when the wheelset transverse force factor reaches the minimum value.This article also employs a dynamic simulation to analyze the impact of the center plate offset distance on curve negotiation performance.The simulation results indicate that when the center plate of the end bogie is at the theoretically derived optimal offset distance,the lateral force factor and derailment coefficient of the entire vehicle reach their minimum values.This configuration results in an optimal curve negotiation performance for the tram.
tramwheelset lateral forcebogie center plate offset