轮轨磨耗对地铁车辆非线性临界速度的影响研究
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摘要
为分析车轮和钢轨磨耗对地铁车辆非线性临界速度的影响,在北京地铁6号线选取典型车辆和区段分别开展了车轮踏面外形和钢轨廓形测试,并在Simpack软件中建立地铁B型车拖车动力学仿真模型。研究结果表明:车轮磨耗存在偏磨现象,且轮缘磨耗严重;等效锥度与车轮磨耗正相关,随着车轮磨耗的增大而增大,与钢轨磨耗负相关,随着钢轨磨耗的增大而减小;等效锥度小于0.07时,车辆非线性临界速度随着等效锥度的增大而增大;等效锥度大于0.5时,车辆非线性临界速度随着等效锥度的增大而减小;等效锥度在0.08~0.12时,车辆的非线性临界速度最高,其稳定性裕度最大。
In order to analyze the impact of wheel and rail wear on the nonlinear critical speed of metro vehicles,selecting the typical vehicles and sections in Beijing metro line 6 to carry out wheel tread profile and rail profile tests,and the dynamics simulation model of B type vehicle trailer is established in the Simpack software.The results show that the wheel wear is partial wear and the wheel rim wear is serious,while the equivalent conicity is positively related to the wheel wear and increases with the wear of wheel.Equivalent conicity is negatively related to the rail wear and decreases with the rail wear.When the equivalent conicity is less than 0.07,the nonlinear critical speed of the vehicle increases with the equivalent conicity.When the equivalent conicity is greater than 0.5,the nonlinear critical velocity of the vehicle decreases with the increase of the equivalent conicity.When the equivalent conicity is at 0.08-0.12,the nonlinear critical speed of the vehicle is the highest and its stability margin is the greatest.
In order to analyze the impact of wheel and rail wear on the nonlinear critical speed of metro vehicles,selecting the typical vehicles and sections in Beijing metro line 6 to carry out wheel tread profile and rail profile tests,and the dynamics simulation model of B type vehicle trailer is established in the Simpack software.The results show that the wheel wear is partial wear and the wheel rim wear is serious,while the equivalent conicity is positively related to the wheel wear and increases with the wear of wheel.Equivalent conicity is negatively related to the rail wear and decreases with the rail wear.When the equivalent conicity is less than 0.07,the nonlinear critical speed of the vehicle increases with the equivalent conicity.When the equivalent conicity is greater than 0.5,the nonlinear critical velocity of the vehicle decreases with the increase of the equivalent conicity.When the equivalent conicity is at 0.08-0.12,the nonlinear critical speed of the vehicle is the highest and its stability margin is the greatest.
引文
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[2]方宇,穆华东,朱祺.上海地铁3号线车轮踏面异常磨耗分析[J].机车电传动,2010(2):45-46.
[3]李洪,宗清泉,吴井冰,等.南京地铁列车车轮踏面非正常磨耗初析[J].城市轨道交通研究,2007(7):54-57.
[4]齐万明,慕光远,胡建成.哈尔滨地铁1号线车轮踏面异常磨耗原因分析[J].城市轨道交通研究,2017(11):14-17.
[5]李霞,温泽峰,金学松.地铁车轮踏面异常磨耗原因分析[J].机械工程学报,2010,46(16):60.
[6]王文斌,范钦海,刘力.轨面摩擦控制技术防治曲线钢轨侧面磨耗研究[J].现代城市轨道交通,2015(1):78-81.
[7]侯茂锐,王卫东,常崇义,等.动车所小半径曲线钢轨磨耗及减磨措施研究[J].铁道学报,2018,40(3):45-50.
[8]M Ishida,M Takikawa,F Aoki,et al.Influence of gauge face worn profile and lubrication on vehicle-track interaction[J].Quarterly Report of Rtri,2002,43(3):137-142.
[9]侯茂锐,胡晓依,王成国.转向架失稳的非线性计算方法研究[J].铁道机车车辆,2011,31(4):49-52.