The Open Mechanical Engineering Journal

2015, 9 : 1033-1038
Published online 2015 October 7. DOI: 10.2174/1874155X01509011033
Publisher ID: TOMEJ-9-1033

Influence of Coupler and Buffer on Dynamics Performance of Heavy Haul Locomotive

Qu Tianwei , Ma Weihua , Wu Dong and Luo Shihui
Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu, China.

ABSTRACT

Aimed at the safety problem of the locomotive under the dynamic braking condition, this paper analyzes the influence of the coupler and buffer system. The coupler reposition methods of the large rotation angle coupler and the small rotation angle coupler under longitudinal coupler press force were compared. The influence of coupler and buffer system to the dynamics performance of locomotive was researched through dynamic simulation. Results show that the longitudinal coupler press force afforded by large rotation angle coupler with coupler shoulder, is larger than that of small rotation angle coupler.

Keywords:

Coupler and buffer, longitudinal, heavy haul, dynamics, wheel/rail, Stability style.