非椭圆接触下地铁小半径曲线外轨全寿命侧磨发展规律
|
摘要
对Archard材料磨耗模型进行了改进,使其更加适合考虑非椭圆接触的钢轨侧磨仿真;将地铁列车荷载谱按客流量分为3类,基于地铁常用A,B型车辆标准模型及小半径曲线参数,建立不同载重条件下的车—轨多体动力学模型,考虑轮轨非椭圆接触计算切向蠕滑功并按权重进行累积,预测外轨侧磨随运营时间的发展规律,并与长期现场跟踪测试结果进行对比验证。结果表明:地铁小半径曲线外轨侧磨的发展可分为3个阶段,阶段Ⅰ磨耗从轨距角部分开始产生并向轨顶与轨侧扩展,尚未达到侧磨位置处;阶段Ⅱ开始出现侧磨并呈线性发展,A,B型车产生的月侧磨速率分别为0.53和0.46mm;侧磨达到9mm左右进入阶段Ⅲ,侧磨速率明显提高,磨耗位置稳定;预测的侧磨发展规律和钢轨型面演变与现场跟踪测试结果十分吻合,表明利用本方法能够以较小的成本对外轨全寿命阶段侧磨进行分析研究。
The Archard wear model was improved to make it more suitable for the simulation of rail side wear considering non-elliptical contact.The load spectrums of metro trains were classified into three categories according to passenger flow.The vehicle-track multi-body dynamics models under different load conditions were established respectively based on the parameters of small radius curve and the standard models of type-A and type-B vehicles commonly used in metro.Considering the non-elliptical contact between wheel and rail,the tangential creep work was calculated and accumulated according to weights.The development law of the side wear on outer rail with the service time was predicted and compared with longterm tracking test results.Results show that the development of the side wear on the small radius curve of metro can be divided into three phases.In phaseⅠ,the wear starts from the gauge corner and expands rapidly to the top and side of the rail,and has not yet reached the side wear position.In phaseⅡ,the side wear appears and starts to develop linearly.The monthly side wear rates of A-type and B-type vehicles are0.53 and 0.46 mm respectively.When the side wear reaches about 9mm,it enters phase Ⅲ.The side wear rate is significantly increased,and the wear position is stable.The predicted development law of side wear and the evolution of rail profile agree well with field tracking test results,which indicates that this method can be used to analyze the side wear of the outer rail in the life cycle stage at a lower cost.
The Archard wear model was improved to make it more suitable for the simulation of rail side wear considering non-elliptical contact.The load spectrums of metro trains were classified into three categories according to passenger flow.The vehicle-track multi-body dynamics models under different load conditions were established respectively based on the parameters of small radius curve and the standard models of type-A and type-B vehicles commonly used in metro.Considering the non-elliptical contact between wheel and rail,the tangential creep work was calculated and accumulated according to weights.The development law of the side wear on outer rail with the service time was predicted and compared with longterm tracking test results.Results show that the development of the side wear on the small radius curve of metro can be divided into three phases.In phaseⅠ,the wear starts from the gauge corner and expands rapidly to the top and side of the rail,and has not yet reached the side wear position.In phaseⅡ,the side wear appears and starts to develop linearly.The monthly side wear rates of A-type and B-type vehicles are0.53 and 0.46 mm respectively.When the side wear reaches about 9mm,it enters phase Ⅲ.The side wear rate is significantly increased,and the wear position is stable.The predicted development law of side wear and the evolution of rail profile agree well with field tracking test results,which indicates that this method can be used to analyze the side wear of the outer rail in the life cycle stage at a lower cost.
引文
[1]娄平,冯静霆,邱德仁,等.铁路曲线外股钢轨侧面磨耗规律研究[J].铁道科学与工程学报,2016,13(2):238-244.(LOU Ping,FENG Jingting,QIU Deren,et al.Study on the Laws of the Side Wear of the Outer Rail in Railway Curve[J].Journal of Railway Science and Engineering,2016,13(2):238-244.in Chinese)
[2]周宇,詹刚,许玉德.城市轨道交通小半径曲线钢轨磨耗分析[J].城市轨道交通研究,2011(7):42-46.(ZHOU Yu,ZHAN Gang,XU Yude.Analysis of Rail Wear on Sharp Curve of Urban Mass Transit[J].Urban Mass Transit,2011(7):42-46.in Chinese)
[3]颜怡翥.广州地铁5号线小半径曲线钢轨磨耗分析[J].城市轨道交通研究,2011(6):55-57,63.(YAN Yizhu.Analysis of Sharp Curve Rail Wear of Guangzhou Subway Line[J].Urban Mass Transit,2011(6):55-57,63.in Chinese)
[4]潘建杰,刘洪涛.地铁曲线钢轨侧磨分析[J].都市快轨交通,2005,18(4):134-135.(PAN Jianjie,LIU Hongtao.An Analysis on the Curve Track Side Abrasion of Metro[J].Urban Rapid Rail Transit,2005,18(4):134-135.in Chinese)
[5]孙宇,翟婉明.钢轨磨耗演变预测模型研究[J].铁道学报,2017,39(8):1-9.(SUN Yu,ZHAI Wanming.A Prediction Model for Rail Wear Evolution[J].Journal of the China Railway Society,2017,39(8):1-9.in Chinese)
[6]肖乾,黄碧坤,杨逸航,等.摩擦系数对高速轮轨磨耗的影响研究[J].铁道学报,2016,38(4):39-43.(XIAO Qian,HUANG Bikun,YANG Yihang,et al.Influence of Friction Coefficient on Wheel/Rail Wear of High Speed Rail System[J].Journal of the China Railway Society,2016,38(4):39-43.in Chinese)
[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.(HOU Maorui,WANG Weidong,CHANG Chongyi,et al.A Study of Rail Wear on Sharp Curves in EMU Maintenance Depot[J].Journal of the China Railway Society,2018,40(3):45-50.in Chinese)
[8]许玉德,魏恺,孙小辉,等.钢轨磨耗预测模型及其算法的优化[J].中国铁道科学,2016,37(4):48-53.(XU Yude,WEI Kai,SUN Xiaohui,et al.Prediction Model and Algorithm Optimization for Rail Wear[J].China Railway Science,2016,37(4):48-53.in Chinese)
[9]王璞,高亮,蔡小培.重载铁路钢轨磨耗演变过程的数值模拟[J].铁道学报,2014,36(10):70-75.(WANG Pu,GAO Liang,CAI Xiaopei.Numerical Simulation of Rail Wear Evolution of Heavy-Haul Railways[J].Journal of the China Railway Society,2014,36(10):70-75.in Chinese)
[10]张晴.重载铁路钢轨磨耗预测研究[D].成都:西南交通大学,2017.(ZHANG Qing.Study on Rail Wear Prediction of Heavy Haul Railway[D].Chengdu:Southwest Jiaotong University,2017.in Chinese)
[11]刘瑶.大轴重重载铁路曲线参数对钢轨磨耗的影响分析[D].成都:西南交通大学,2017.(LIU Yao.Analysis on Influence of Heavy-Haul Railway Line Curve Parameters on Rail Wear[D].Chengdu:Southwest Jiaotong University,2017.in Chinese)
[12]杨新文,姚一鸣,周顺华,等.基于修正的轮轨非Hertz接触的重载铁路曲线超高对钢轨磨耗的影响分析[J].机械工程学报,2018,54(4):22-29.(YANG Xinwen,YAO Yiming,ZHOU Shunhua,et al.Influence of Curve Superelevation of Heavy Haul Railway on Rail Wear Based on Revised Wheel/Rail Non-Hertz Contact[J].Journal of Mechanical Engineering,2018,54(4):22-29.in Chinese)
[13]张银花,周韶博,周清跃,等.高速铁路轮轨硬度匹配试验研究[J].中国铁道科学,2017,38(4):1-7.(ZHANG Yinhua,ZHOU Shaobo,ZHOU Qingyue,et al.Experimental Study on Hardness Matching of Wheel and Rail Materials for High Speed Railway[J].China Railway Science,2017,38(4):1-7.in Chinese)
[14]周亮.上海地铁曲线轨道减磨措施试验研究[J].城市轨道交通研究,2009(9):62-66.(ZHOU Liang.Test and Research about the Measures of Alleviating Rail Wear in Shanghai Metro[J].Urban Mass Transit,2009(9):62-66.in Chinese)
[15]张学华.干式润滑技术在钢轨侧面减磨中的效用[J].城市轨道交通研究,2008(6):50-52.(ZHANG Xuehua.The Effectiveness of Dry Lubrication Technology in Decreasing the Side Rail Wear[J].Urban Mass Transit,2008(6):50-52.in Chinese)
[2]周宇,詹刚,许玉德.城市轨道交通小半径曲线钢轨磨耗分析[J].城市轨道交通研究,2011(7):42-46.(ZHOU Yu,ZHAN Gang,XU Yude.Analysis of Rail Wear on Sharp Curve of Urban Mass Transit[J].Urban Mass Transit,2011(7):42-46.in Chinese)
[3]颜怡翥.广州地铁5号线小半径曲线钢轨磨耗分析[J].城市轨道交通研究,2011(6):55-57,63.(YAN Yizhu.Analysis of Sharp Curve Rail Wear of Guangzhou Subway Line[J].Urban Mass Transit,2011(6):55-57,63.in Chinese)
[4]潘建杰,刘洪涛.地铁曲线钢轨侧磨分析[J].都市快轨交通,2005,18(4):134-135.(PAN Jianjie,LIU Hongtao.An Analysis on the Curve Track Side Abrasion of Metro[J].Urban Rapid Rail Transit,2005,18(4):134-135.in Chinese)
[5]孙宇,翟婉明.钢轨磨耗演变预测模型研究[J].铁道学报,2017,39(8):1-9.(SUN Yu,ZHAI Wanming.A Prediction Model for Rail Wear Evolution[J].Journal of the China Railway Society,2017,39(8):1-9.in Chinese)
[6]肖乾,黄碧坤,杨逸航,等.摩擦系数对高速轮轨磨耗的影响研究[J].铁道学报,2016,38(4):39-43.(XIAO Qian,HUANG Bikun,YANG Yihang,et al.Influence of Friction Coefficient on Wheel/Rail Wear of High Speed Rail System[J].Journal of the China Railway Society,2016,38(4):39-43.in Chinese)
[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.(HOU Maorui,WANG Weidong,CHANG Chongyi,et al.A Study of Rail Wear on Sharp Curves in EMU Maintenance Depot[J].Journal of the China Railway Society,2018,40(3):45-50.in Chinese)
[8]许玉德,魏恺,孙小辉,等.钢轨磨耗预测模型及其算法的优化[J].中国铁道科学,2016,37(4):48-53.(XU Yude,WEI Kai,SUN Xiaohui,et al.Prediction Model and Algorithm Optimization for Rail Wear[J].China Railway Science,2016,37(4):48-53.in Chinese)
[9]王璞,高亮,蔡小培.重载铁路钢轨磨耗演变过程的数值模拟[J].铁道学报,2014,36(10):70-75.(WANG Pu,GAO Liang,CAI Xiaopei.Numerical Simulation of Rail Wear Evolution of Heavy-Haul Railways[J].Journal of the China Railway Society,2014,36(10):70-75.in Chinese)
[10]张晴.重载铁路钢轨磨耗预测研究[D].成都:西南交通大学,2017.(ZHANG Qing.Study on Rail Wear Prediction of Heavy Haul Railway[D].Chengdu:Southwest Jiaotong University,2017.in Chinese)
[11]刘瑶.大轴重重载铁路曲线参数对钢轨磨耗的影响分析[D].成都:西南交通大学,2017.(LIU Yao.Analysis on Influence of Heavy-Haul Railway Line Curve Parameters on Rail Wear[D].Chengdu:Southwest Jiaotong University,2017.in Chinese)
[12]杨新文,姚一鸣,周顺华,等.基于修正的轮轨非Hertz接触的重载铁路曲线超高对钢轨磨耗的影响分析[J].机械工程学报,2018,54(4):22-29.(YANG Xinwen,YAO Yiming,ZHOU Shunhua,et al.Influence of Curve Superelevation of Heavy Haul Railway on Rail Wear Based on Revised Wheel/Rail Non-Hertz Contact[J].Journal of Mechanical Engineering,2018,54(4):22-29.in Chinese)
[13]张银花,周韶博,周清跃,等.高速铁路轮轨硬度匹配试验研究[J].中国铁道科学,2017,38(4):1-7.(ZHANG Yinhua,ZHOU Shaobo,ZHOU Qingyue,et al.Experimental Study on Hardness Matching of Wheel and Rail Materials for High Speed Railway[J].China Railway Science,2017,38(4):1-7.in Chinese)
[14]周亮.上海地铁曲线轨道减磨措施试验研究[J].城市轨道交通研究,2009(9):62-66.(ZHOU Liang.Test and Research about the Measures of Alleviating Rail Wear in Shanghai Metro[J].Urban Mass Transit,2009(9):62-66.in Chinese)
[15]张学华.干式润滑技术在钢轨侧面减磨中的效用[J].城市轨道交通研究,2008(6):50-52.(ZHANG Xuehua.The Effectiveness of Dry Lubrication Technology in Decreasing the Side Rail Wear[J].Urban Mass Transit,2008(6):50-52.in Chinese)