Type Selection and Unification of Urban Rail Transit Train Basic Braking Device

Abstract

Objective Selection of basic braking device (abbreviated as BBD) may affect the braking performance, running performance and operating cost of urban rail transit trains. Targeting the characteristics of wide variety, different interface specifications and low generalization in terms of BBD in China, the reasonable type selection of BBD for urban rail transit trains is particularly important. Method An analysis of BBD is conducted from aspects such as the calculation of friction pairs heat load, the checking of air brake and parking brake capacities, the checking of bogie interface and installation space. The simplified unification of BBD for type A and type B trains with the design speed of 80 km/h and 120 km/h respectively is completed, and the main parameters of the braking actuator of serialized Chinese standard urban rail transit trains are given. Result & Conclusion The unification scheme of serialized Chinese standard urban rail transit trains can provide reference for the selection of BBD.

Keywords

• urban rail transit
• train
• basic braking devices
• type selection
• type unification