重载机车受压稳定性及轮轨作用的试验与研究  

Experimental Research on Stability of Heavy-load Locomotive under Longitudinal Compressive Force and Wheel-rail Interaction

作　　者：李谷[1] 祖宏林[1] 储高峰[1] 张志超[1] 

机构地区：[1]中国铁道科学研究院机车车辆研究所,北京100081

出　　处：《铁道机车车辆》2013年第A02期16-25,共10页Railway Locomotive & Car

基　　金：国家自然科学青年基金资助项目（11202245）

摘　　要：综合了近年来重载组合列车运行安全性试验的结果，并结合对几次事故案例的成因分析，在综合相关理论和实际试验结果的基础上，阐述了重载组合列车的中部从控机车所承受的大纵向力作用环境，以及在纵向力作用下对轮轨关系所造成的不利影响及损害机理。重点展示和分析了不同钩缓装置的工作原理及其在大纵向力作用下的受压稳定性，对止确认识和把握重载列车运行安全性的若干关键性因素提出了见解。Based on the comprehensive analysis of running safety tests results of heavy-haul combined train recently and the cause analysis of derailment accidents, this paper discussed the action mechanism of the large longitudinal compressive forces acted on the middle locomotive of heavy-haul train, and also investigated the adverse influences of these forces on the wheel-rail relationship. The working principle and stability of different coupler draft gears under large longitudinal compressive forces were analyzed mainly in the present pa- per, and several key factors influencing the heavy-haul train running safety were proposed finally.

关 键 词：重载列车 中部机车 轮轨作用 稳定性 

分 类 号：U260.17[机械工程—车辆工程]