摘要
分析不同的列车编组、制动操纵方式、线路坡道条件下的列车调速制动过程.计算表明,采用动力制动,在12‰的下坡道,用DF8B或SS7单机牵引,缓解增速时间从110s分别延长为172s及234s.对于18‰的下坡道,用DF8B或SS7双机牵引,缓解增速时间从68s分别延长为138s及225s.采用机车动力制动与空气制动联合操纵方式还可减少空气制动次数和降低车轮踏面温升,从而提高列车安全性,放宽限制坡度的设计要求.
Brake processes were analyzed under different locomotives, trains, brake operation procedures, and limiting grades. With application of dynamic brake, release times increase from 110 s to 172 and 234 s for trains hauled by a DFSB or an SS7 locomotive, respectively, at a down slope of 12‰ grade, and from 68 s to 138 and 225 s for trains hauled by double DFSB or double SS7 locomotives, respectively, at a down slope of 18‰ grade. Combining air and dynamic brake also decreases the times of air brakes and the temperature raise on the thread surfaces, which increases the safety of trains and relaxes the constraint on limiting grades in railway design.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2005年第4期448-452,共5页
Journal of Southwest Jiaotong University
关键词
动力制动
制动方式
限制坡度
列车
机车
dynamic brake
brake operation
limiting grade
train
locomotive
