基于纵向动力学的大轴重机车在朔黄铁路适应性探究
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摘要
随着重载铁路的发展,纵向动力学问题显得越来越突出。总结了研究机车线路适应性的方法,分析了列车纵向动力学原理。利用已开发的纵向动力学软件TDEAS模拟仿真30t轴重某型电力机车在朔黄线上进行货物运输,具体编组为:2台30t轴重某型电力机车,‘1+1’编组在朔黄线上牵引2万t。计算机车牵引能力、列车纵向冲动以及列车能耗,从效率性、安全性和经济性方面研究大轴重机车对线路的适应性。结果表明:30t轴重机车牵引能力满足朔黄铁路运用要求;运行过程中,车钩力最大值均出现在中部机车车钩,最大拉钩力和最大压钩力分别为1 300,1 650kN,在安全范围之内;在长大下坡采用循环制动,机车电制动回收能量超过机车牵引耗能,节能效果明显。
With the development of heavy haul railway,the longitudinal train dynamics becomes more and more prominent.This paper summarized the research methods of railway adaptability of locomotive and analyzed the longitudinal train dynamics.The self-developed TDEAS software has been used to simulate a certain 30 taxle electric locomotive transporting goods on the Shuo-Huang railway.Two30 taxle electric locomotives pull twenty thousand tons of goods with′1 + 1′marshalling mode.The traction capability,longitudinal impulse and energy consumption was calculated.From the efficiency,safety and economy,the railway adaptability of heavy axle load locomotive was researched.The results show that 30 taxle load locomotive's traction capacity can meet the application requirements of the Shuo-Huang railway.During operation,the maximum coupler forces are present in the middle of the locomotive,the maximum coupler-pulling force and maximum coupler-pressing force were 1 300 kN and 1650 kN,which are within the safe range.Using a method of cycle braking on long heavy down grade section,the recovered energy through the electro-dynamic braking is more than the traction consumption energy.
With the development of heavy haul railway,the longitudinal train dynamics becomes more and more prominent.This paper summarized the research methods of railway adaptability of locomotive and analyzed the longitudinal train dynamics.The self-developed TDEAS software has been used to simulate a certain 30 taxle electric locomotive transporting goods on the Shuo-Huang railway.Two30 taxle electric locomotives pull twenty thousand tons of goods with′1 + 1′marshalling mode.The traction capability,longitudinal impulse and energy consumption was calculated.From the efficiency,safety and economy,the railway adaptability of heavy axle load locomotive was researched.The results show that 30 taxle load locomotive's traction capacity can meet the application requirements of the Shuo-Huang railway.During operation,the maximum coupler forces are present in the middle of the locomotive,the maximum coupler-pulling force and maximum coupler-pressing force were 1 300 kN and 1650 kN,which are within the safe range.Using a method of cycle braking on long heavy down grade section,the recovered energy through the electro-dynamic braking is more than the traction consumption energy.
引文
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[2]薛继连.神华重载铁路核心装备与关键技术创新[J].中国铁路,2014,(3):6-11.
[3]神华集团有限责任公司.国内首列30吨轴重万吨重载列车在朔黄铁路开行[EB/OL].[2014-08-28].http:∥www.sasac.gov.cn/n1180/n1226/n2410/n314244/16028247.html.
[4]郭锴.重载运输的通过能力研究[D].中南大学,2007.
[5]李海滨.东风7B型机车在黔桂线运用的适应性分析[J].内燃机车,1995,(9):9-14.
[6]马大炜,王成国,张波.2万t级重载列车的技术对策及其纵向力研究[J].铁道机车车辆,2008,28(S1):212-216.
[7]李晓春,王位,李希宁.大秦线重载运输机车的能耗分析[J].电力机车与城轨车辆,2010,33(3):20-24.
[8]丁莉芬.重载列车纵向动力学建模研究[D].北京交通大学.2012:5-18.
[9]罗世辉,吴庆,杜志辉,等.基于纵向动力学的列车能量及能耗分析[J].铁道机车车辆,2013,33(2):52-55.