基于运用条件的高速动车组枕梁的疲劳损伤
|
摘要
为了估算特殊工况下动车组枕梁的损伤,提取了部分典型测点在进出站等特殊工况下通过较小曲线与道岔的应力数据做损伤计算,之后验证了数据的有效性并采用Bootstrap方法对该工况下关键点的寿命区间进行估计.经过对比,得到典型工况对枕梁关键部位损伤的影响程度.
In order to estimate the special conditions of EMU(electric multiple units)bolster damage,stress data of some critical points during the train passing through typical operating conditions,such as small-radius curved tracks and turnouts are adopted,and the damage is calculated accordingly.The results are then validated and the fatigue life ranges of critical points are estimated by the bootstrap method.Finally,the influence of typical operating conditions on critical points of bolsters is revealed by comparative analysis.
In order to estimate the special conditions of EMU(electric multiple units)bolster damage,stress data of some critical points during the train passing through typical operating conditions,such as small-radius curved tracks and turnouts are adopted,and the damage is calculated accordingly.The results are then validated and the fatigue life ranges of critical points are estimated by the bootstrap method.Finally,the influence of typical operating conditions on critical points of bolsters is revealed by comparative analysis.
引文
[1]李强,薛广进,吴宵,等.高置信度动车组载荷谱的编制[J].北京交通大学学报,2012,36(6):33-36.LI Qiang,XUE Guangjin,WU Xiao,et al.Establishment of high confidence load spectrum for EMU[J].Journal of Beijing Jiaotong University,2012,36(6):33-36.(in Chinese)
[2]米彩盈,李芾.基于载荷谱的高速列车转向架构架的疲劳强度[J].西南交通大学学报,2006,41(6):381-385.MI Caiying,LI Fu.Fatigue strength of bogie frame of high-speed train under spectrum load[J].Journal of Southwest Jiaotong University,2006,41(6):381-385.(in Chinese)
[3]周素霞,李福胜,谢基龙,等.基于损伤容限的动车组车轴实测载荷谱等效应力评价[J].机械工程学报,2015,51(8):131-136.ZHOU Suxia,LI Fusheng,XIE Jilong,et al.Equivalentstress evaluation of the load spectrum measured on the EMU axle based on damage tolerance[J].Journal of Mechnical Engineering,2015,51(8):131-136.(in Chinese)
[4]汤清洪,马吉胜,贾长治.扭力轴多工况二维随机疲劳载荷谱的编制[J].振动与冲击,2007,26(2):105-116.TANG Qinghong,MA Jisheng,JIA Changzhi.Establishment of two-dimensional stochastic fatigue load spectrum in multiple-loading case for torsion shaft[J].Journal of Vibration and Shock,2007,26(2):105-116.(in Chinese)
[5]刘勤,钱云鹏,姬广振,等.随机载荷作用下扭力轴耐久性优化设计[J].兵工学报,2015,36(5):933-937.LIU Qin,QIAN Yunpeng,JI Guangzhen,et al.Durability-based design optimization of torsion shaft under random loading[J].Acta Armamentarii,2015,36(5):933-937.(in Chinese)
[6]刘健,肖柳胜,吴汉川,等.油田压裂车车架的多工况疲劳寿命分析[J].石油机械,2014,42(1):75-78.LIU Jian,XIAO Liusheng,WU Hanchuan,et al.Analysis of the fatigue life of oilfield fracturing truck frame in multiple operating conditions[J].China Petroleum Machinery,2014,42(1):75-78.(in Chinese)
[7]陈欣,项昌乐,郑慕侨.车辆传动系多工况随机载荷谱的统计处理方法[J].汽车工程,1999(4):232-237.CHEN Xin,XIANG Changle,ZHENG Muqiao.Statistical methods for random load spectrum of vehicle transmission under multiple working conditions[J].Automotive Engineering,1999(4):232-237.(in Chinese)
[8]郝少峰,王明东,李聪,等.某重卡平衡轴多工况道路载荷谱采集的载荷试验研究[J].汽车实用技术,2013(3):79-81.HAO Shaofeng,WANG Mingdong,LI Cong,et al.Aheavy truck balance shaft under load spectrum acquisition load experimental study[J].Automobile Applied Technology,2013(3):79-81.(in Chinese)
[9]王文静,王燕,孙守光,等.高速列车转向架载荷谱长期跟踪试验研究[J].西南交通大学学报,2015,50(1):84-89.77WANG Wenjing,WANG Yan,SUN Shouguang,et al.Long-term load spectrum test of high speed train bogie[J].Journal of Southwest Jiaotong University,2015,50(1):84-89.(in Chinese)
[10]陈传尧.疲劳与断裂[M].武汉:华中科技大学出版社,2002:17-21.CHEN Chuanyao.Fatigue and fracture[M].Wuhan:Huazhong University of Science and Technology Press,2002:17-21.(in Chinese)
[11]金新灿.通过道岔时转向架结构振动与动态应力分析[D].北京:北京交通大学,2006.JIN Xincan.Simulating and analyzing the structural vibrations and dynamic stresses of bogie frame when running through a switch[D].Beijing:Beijing Jiaotong U-niversity,2006.(in Chinese)
[12]闫楚良,高镇同.飞机高置信度中值随机疲劳载荷谱的编制原理[J].航空学报,2000,21(2):118-123.YAN Chuliang,GAO Zhentong.Compilation theory of median stochastic fatigue load-spectrum with high confidence level for airplane[J].Acta Aeronautica et Astronautica Sinica,2000,21(2):118-123.(in Chinese)
[13]高镇同.疲劳应用统计学[M].北京:国防工业出版社,1986:332-357.GAO Zhentong.Fatigue applied statistics[M].Beijing:National Defense Industry Press,1986:332-357.(in Chinese)
[14]EFRON B,TIBSHIRANI R J.An introduction to the bootstrap[M].London:Chapman and Hall/CRC,1994.
[15]冯藴雯,黄玮,吕震宙,等.极小子样试验的半经验评估方法[J].航空学报,2004,25(5):456-459.FENG Yunwen,HUANG Wei,LYU Zhenzhou,et al.The semiempirical evaluation method for extreme small sample test[J].Acta Aeronautica et Astronautica Sinica,2004,25(5):456-459.(in Chinese)
[2]米彩盈,李芾.基于载荷谱的高速列车转向架构架的疲劳强度[J].西南交通大学学报,2006,41(6):381-385.MI Caiying,LI Fu.Fatigue strength of bogie frame of high-speed train under spectrum load[J].Journal of Southwest Jiaotong University,2006,41(6):381-385.(in Chinese)
[3]周素霞,李福胜,谢基龙,等.基于损伤容限的动车组车轴实测载荷谱等效应力评价[J].机械工程学报,2015,51(8):131-136.ZHOU Suxia,LI Fusheng,XIE Jilong,et al.Equivalentstress evaluation of the load spectrum measured on the EMU axle based on damage tolerance[J].Journal of Mechnical Engineering,2015,51(8):131-136.(in Chinese)
[4]汤清洪,马吉胜,贾长治.扭力轴多工况二维随机疲劳载荷谱的编制[J].振动与冲击,2007,26(2):105-116.TANG Qinghong,MA Jisheng,JIA Changzhi.Establishment of two-dimensional stochastic fatigue load spectrum in multiple-loading case for torsion shaft[J].Journal of Vibration and Shock,2007,26(2):105-116.(in Chinese)
[5]刘勤,钱云鹏,姬广振,等.随机载荷作用下扭力轴耐久性优化设计[J].兵工学报,2015,36(5):933-937.LIU Qin,QIAN Yunpeng,JI Guangzhen,et al.Durability-based design optimization of torsion shaft under random loading[J].Acta Armamentarii,2015,36(5):933-937.(in Chinese)
[6]刘健,肖柳胜,吴汉川,等.油田压裂车车架的多工况疲劳寿命分析[J].石油机械,2014,42(1):75-78.LIU Jian,XIAO Liusheng,WU Hanchuan,et al.Analysis of the fatigue life of oilfield fracturing truck frame in multiple operating conditions[J].China Petroleum Machinery,2014,42(1):75-78.(in Chinese)
[7]陈欣,项昌乐,郑慕侨.车辆传动系多工况随机载荷谱的统计处理方法[J].汽车工程,1999(4):232-237.CHEN Xin,XIANG Changle,ZHENG Muqiao.Statistical methods for random load spectrum of vehicle transmission under multiple working conditions[J].Automotive Engineering,1999(4):232-237.(in Chinese)
[8]郝少峰,王明东,李聪,等.某重卡平衡轴多工况道路载荷谱采集的载荷试验研究[J].汽车实用技术,2013(3):79-81.HAO Shaofeng,WANG Mingdong,LI Cong,et al.Aheavy truck balance shaft under load spectrum acquisition load experimental study[J].Automobile Applied Technology,2013(3):79-81.(in Chinese)
[9]王文静,王燕,孙守光,等.高速列车转向架载荷谱长期跟踪试验研究[J].西南交通大学学报,2015,50(1):84-89.77WANG Wenjing,WANG Yan,SUN Shouguang,et al.Long-term load spectrum test of high speed train bogie[J].Journal of Southwest Jiaotong University,2015,50(1):84-89.(in Chinese)
[10]陈传尧.疲劳与断裂[M].武汉:华中科技大学出版社,2002:17-21.CHEN Chuanyao.Fatigue and fracture[M].Wuhan:Huazhong University of Science and Technology Press,2002:17-21.(in Chinese)
[11]金新灿.通过道岔时转向架结构振动与动态应力分析[D].北京:北京交通大学,2006.JIN Xincan.Simulating and analyzing the structural vibrations and dynamic stresses of bogie frame when running through a switch[D].Beijing:Beijing Jiaotong U-niversity,2006.(in Chinese)
[12]闫楚良,高镇同.飞机高置信度中值随机疲劳载荷谱的编制原理[J].航空学报,2000,21(2):118-123.YAN Chuliang,GAO Zhentong.Compilation theory of median stochastic fatigue load-spectrum with high confidence level for airplane[J].Acta Aeronautica et Astronautica Sinica,2000,21(2):118-123.(in Chinese)
[13]高镇同.疲劳应用统计学[M].北京:国防工业出版社,1986:332-357.GAO Zhentong.Fatigue applied statistics[M].Beijing:National Defense Industry Press,1986:332-357.(in Chinese)
[14]EFRON B,TIBSHIRANI R J.An introduction to the bootstrap[M].London:Chapman and Hall/CRC,1994.
[15]冯藴雯,黄玮,吕震宙,等.极小子样试验的半经验评估方法[J].航空学报,2004,25(5):456-459.FENG Yunwen,HUANG Wei,LYU Zhenzhou,et al.The semiempirical evaluation method for extreme small sample test[J].Acta Aeronautica et Astronautica Sinica,2004,25(5):456-459.(in Chinese)