基于损伤一致性的动车组转向架载荷实验谱研究

邹骅; 吴奇峰; 孙守光

doi:10.6052/0459-1879-20-214

基于损伤一致性的动车组转向架载荷实验谱研究

doi: 10.6052/0459-1879-20-214

北京交通大学机械与电子控制工程学院, 北京 100044

基金项目: 1) 国家重点研发计划资助项目(2016YFB1200505-011)

详细信息

作者简介:
2) 邹骅, 副教授, 主要研究方向: 车辆结构可靠性及优化. E-mail: hzoubjtu@126.com

通讯作者:
邹骅

中图分类号: U270
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出版历程
- 收稿日期: 2020-06-19

RESEARCH ON LOAD TEST SPECTRUM OF EMU CAR BOGIES BASED ON DAMAGE CONSISTENCY

School of Mechanical, Electronics and Control Engineering, Beijing Jiaotong University, Beijing 100044, China

摘要

摘要: 动车组转向架构架载荷状况复杂, 实际运用条件下包含多个基本载荷系, 因此转向架构架局部位置的总损伤是若干载荷系在该位置相应损伤的累积; 转向架构架实验谱是考核动车组构架寿命的关键手段, 在没有实测载荷的条件下如何编制实验谱是本文的研究目标.本文首先对转向架构架承载系统的线性假设、稳定假设及典型假设进行了确认研究; 然后根据长期实测线路仅有的动应力数据, 将转向架构架典型应力分区域编制应力谱; 其次根据构架受力特点对构架建立载荷系, 在试验台中标定各个载荷系下的载荷应力传递关系, 并将区域典型测点的最大标定系数作为该区域的载荷应力传递系数; 然后基于损伤一致性原则建立优化函数, 并将获得的载荷应力传递系数矩阵代入优化函数, 得到一种适用于由线路实测动应力大数据推导出实验载荷谱的方法. 试验结果证明该方法具有较高的精度, 对构架关键部位的考核实现了典型区域全覆盖; 在中国线路运用工况下, 相比国际通用规范, 该方法对所有典型区域做到损伤再现, 所编制实验谱对转向架构架的考核更具有适用性.
- 实验谱 /
- 转向架构架 /
- 损伤一致性 /
- 动车组
Abstract: The load situation of the EMU car bogie frame is complex, and it contains multiple basic load systems under actual operating conditions. Therefore, the damage of the local position of the bogie frame is the accumulation of the corresponding damage of several load systems at that location; the experimental spectrum of the bogie frame is to assess the life of the EMU frame. The bogie frame test spectrum is the key means to assess the life of EMU frame, and how to prepare the test spectrum without measured load is the research goal. In this paper, firstly, the linear assumption, the stability assumption and the typical assumption are researched and confirmed; Then, based on the only dynamic stress data of the long-term measured line, the typical stress of the bogie frame is compiled into a stress spectrum; the load system of the frame is established according to the stress characteristics, and the load stress transfer relationship under each load system is calibrated in the test bench; the maximum calibration coefficient of typical measuring points in the region is taken as the load stress transfer coefficient of the region; then, based on the damage consistency principle, the optimization function is established, and the load stress transfer coefficient matrix obtained is substituted into the optimization function, and a method for deriving the experimental load spectrum from the measured dynamic stress data of transmission lines is established. The test results prove that the method has high accuracy, and the assessment of key parts of the structure has achieved full coverage of typical areas; under the operating conditions of the Chinese line, compared with the international general specifications, this method can achieve damage reproduction in all typical areas. Compiling experimental spectrum is more applicable to the assessment of bogie frame.
- test spectrum /
- bogie frames /
- damage consistency /
- EMU

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参考文献(30)

[1]	Schijve J . Fatigue of Structures and Materials. 2nd ed. Berlin: Springer Science & Business Media, 2009
[2]	Zhao LH, Zheng SL, Feng JZ . Fatigue life prediction under service load considering strengthening effect of loads below fatigue limit. Chinese Journal of Mechanical Engineering, 2014,27(6):1178-1185
[3]	British Standard BS EN 13749, 2005. Railway applications-methods of specifying structural requirements of bogie frames
[4]	Zeng XH, Wu H, Lai J , et al. Influences of aerodynamic loads on hunting stability of high-speed railway vehicles and parameter studies. Acta Mechanica Sinica, 2014,30(6):889-900
[5]	Fu DL, Wang WJ, Dong L . Analysis on the fatigue cracks in the bogie frame. Engineering Failure Analysis, 2015,58:307-319
[6]	严隽耄 . 车辆工程, 第2版. 北京: 中国铁道出版社, 2004. (Yan Juanmao. Vehicle Engineering, 2nd edn. Beijing: China Railway Publishing House, 2004 (in Chinese))
[7]	Schupp G, Jaschinski A . Virtual prototypeing: The future way of designing railway vehicles. International Journal of Vehicle Design, 1999,22(1-2):93-115
[8]	Andersson C, Abrahamsson T . Simulation of interaction between a train in general motion and a track. Vehicle System Dynamics, 2002,38(6):433-455
[9]	高云霄, 王曦, 邹骅等. 基于动应力的转向架构架载荷识别. 机械工程学报, 2018,54(12):58-63. (Gao Yunxiao, Wang Xi, Zou Hua , et al. Load identification of bogie frame based on dynamic stress. Journal of Mechanical Engineering, 2018,54(12):58-63 (in Chinese))
[10]	马卫华, 罗世辉, 宋荣荣 . 高速动车轴箱转臂节点载荷谱研究. 铁道机车车辆, 2009,29(4):12-14, 50. ( Ma Weihua, Luo Shihui, Song Rongrong, . Load spectrum research of tumbler journal box node of high-speed motor car. Railway Locomotive & Car, 2009,29(4):12-14, 50 (in Chinese))
[11]	Kassner M . Fatigue strength analysis of a welded railway vehicle structure by different methods. International Journal of Fatigue, 2012,34(1):103-111
[12]	张大福, 邬平波, 魏来 . CRH3动车组构架载荷谱研究. 机械, 2013,40(10):22-27. (Zhang Dafu, Wu Pingbo, Wei Lai . The study of CRH3 train-set frame's load spectrum. Machinery, 2013,40(10):22-27 (in Chinese))
[13]	金新灿, 孙守光, 陈光雄 . 列车通过道岔时转向架结构振动特性的研究. 力学学报, 2006,38(4):530-539. (Jin Xincan, Sun Shouguang, Chen Guangxiong . Study on characteristics of railway bogie's structural vibrations while train passing through a switch . Chinese Journal of Theoretical and Applied Mechanics, 2006,38(4):530-539 (in Chinese))
[14]	Matsumoto A, Sato Y, Ohono H , et al. Study on curving performance of railway bogies by using full-scale stand test. Vehicle System Dynamics, 2006,44(Supplement 1):862-873
[15]	Esderts A, Willen J, Kassner M . Fatigue strength analysis of welded joints in closed steel sections in rail vehicles. International Journal of Fatigue, 2012,34(1):112-121
[16]	Bertini L, Cera A, Frendo F , et al. Experimental investigation of the fatigue resistance of pipe-to-plate welded connections under bending, torsion and mixed mode loading. International Journal of Fatigue, 2014,68:178-185
[17]	Ribeiro D, Cal?ada R, Delgaso R , et al. Finite-element model calibration of a railway vehicle based on experimental modal parameters. Vehicle System Dynamics, 2013,51(6):821-856
[18]	Ren ZS, Sun SG, Li Q , et al. Experimental studies of load characteristics of bogie frames for 350 km/h EMUs. Journal of Rail and Rapid Transit, 2012,226(2):216-227
[19]	丁然, 李强, 任尊松 . 城际动车组轮轨力统计特征. 机械工程学报, 2019,55(6):108-115. (Ding Ran, Li Qiang, Ren Zunsong . Statistics characters of wheel/rail loads of intercity EMU. Journal of Mechanical Engineering, 2019,55(6):108-115 (in Chinese))
[20]	Wang WJ, Wang Y, Sun SG , et al. Long-term load spectrum test of high speed train bogie. Journal of Southwest Jiaotong University. 2015,50(1):84-89
[21]	Zhai Wm, Liu PF, Lin JH , et al. Experimental investigation on vibration behavior of a CRH train at speed of 350 km/h. International Journal of Rail Transportation, 2015,3(1):1-16
[22]	陈道云, 孙守光, 李强 . 高速列车载荷谱推断及扩展方法研究. 机械工程学报, 2018,54(10):151-155. (Chen Daoyun, Sun Shouguang, Li Qiang . Study on deduction and extend of high-speed train load spectrum. Journal of Mechanical Engineering, 2018,54(10):151-155 (in Chinese))
[23]	Chen D, Xiao Q, Mou M , et al. Study on establishment of standardized load spectrum on bogie frames of high-speed trains. Acta Mechanica Sinica, 2019,35(4):812-827
[24]	王斌杰, 孙守光, 王曦等. 地铁转向架构架运用载荷与疲劳损伤特征研究. 铁道学报, 2019,41(6):53-60. (Wang Binjie, Sun Shouguang, Wang Xi , et al. Research on characteristics of operation loads and fatigue damage of metro train bogie frame. Journal of the China Railway Society, 2019,41(6):53-60 (in Chinese))
[25]	杨广雪, 张亚禹, 李广全 . 高速列车轴箱弹簧载荷特性与疲劳损伤. 交通运输工程学报, 2019,19(4):81-93. (Yang Guangxue, Zhang Yayu, Li Guangquan . Axle box spring load characteristics and fatigue damage of high-speed train. Journal of Traffic and Transportation Engineering, 2019,19(4):81-93 (in Chinese))
[26]	Zhu N, Sun SG, Li Q , et al. Theoretical research and experimental validation of quasi-static load spectra on bogie frame structures of high-speed trains. Acta Mechanica Sinica, 2014,30(6):901-909
[27]	Ma S, Sun S, Wang B , et al. Estimating load spectra probability distributions of train bogie frames by the diffusion-based kernel density method. International Journal of Fatigue, 2020, 132(3): 105352. 1- 105352. 14
[28]	邹骅, 李强, 孙守光 . 基于载荷标定的城际列车转向架载荷及应力分布特征研究. 铁道学报, 2016,38(10):27-33. (Zou Hua, Li Qiang, Sun Shouguang . Study on intercity train load spectrum distribution estimation and calibration methods based on load demarcation. Journal of the China Railway Society, 2016,38(10):27-33 (in Chinese))
[29]	Zou H, Sun S, Li Q , et al. Analysis of the load-Stress response characteristics of the bogie frame in intercity electric multiple unit. Chinese Journal of Mechanical Engineering, 2018,31(1):26-36
[30]	王建斌, 李大地, 屈升 . 高速列车转向架构架疲劳试验载荷谱研究. 机械工程学报, 2019,55(24):172-177. (Wang Jianbin, Li Dadi, Qu Sheng . Research on the fatigue test spectrum for high speed train bogie frames. Journal of Mechanical Engineering, 2019,55(24):172-177 (in Chinese))