|Table of Contents|

Spectrum analysis of hunting motion of flexible bogies in high-speed EMUs(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2022年01期
Page:
155-167
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Spectrum analysis of hunting motion of flexible bogies in high-speed EMUs
Author(s):
GAN Feng;  DAI Huan-yun;  LUO Guang-bing;  YANG Zhen-huan;  LI Tao
(State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China)
Keywords:
vehicle engineering;  flexible bogie;  hunting motion;  hunting frequency;  equivalent conicity;  frame stability
PACS:
U211.5
DOI:
10.19818/j.cnki.1671-1637.2022.01.013
Abstract:
In order to analyze the spectrum of bogie hunting motion of high-speed EMUs at different operating speeds, a free wheelset hunting motion model was deduced, and three first-order differential equations related to the longitudinal velocity, lateral velocity and yaw angular velocity were established. A hunting motion model of the flexible bogie was established, and a 9- degree of freedom hunting motion equation related to the degrees of freedom of lateral displacement and shaking-head of wheelset and frame was given. Combined with the parameters of vehicle suspension and the measured wheel-rail contact relationship, and together with the hunting motion equation of free wheelset, the hunting wavelengths and frequencies of frame under different initial lateral displacements of wheelset were solved. Taking the wheel tread profile measured in one wheel repair cycle of a certain type of EMUs as an example, the variation law of the frame hunting wavelengths and frequencies under different mileages after wheel repair were analyzed. Analysis results show that some measuring points have obvious vibration frequencies of 2.9, 14.9 and 33.6 Hz, and these frequencies increase linearly with the vehicle speed. 33.6 Hz comes from the frequency when the vehicle passes through the CRTS Ⅱ track plate; 14.9 Hz comes from the wheel rotation frequency when running at 350 km·h-1. When the initial lateral displacement of the wheelset is 3 mm and the equivalent conicity is 0.14, the calculated hunting frequency of the frame is 3.0 Hz, which is close to the measured lateral vibration frequency of the frame of 2.9 Hz. And then the accuracy of the differential equation is verified. With the increase of the mileage after the wheel repair, the equivalent conicity under the same wheelset lateral displacement continues to increase, the hunting wavelength of the frame continues to decrease, and the hunting frequency also increases. After 206 000 km after wheel repair, the maximum hunting frequency is close to 8 Hz when the wheelset lateral displacement is 1 mm. 1 tab, 18 figs, 32 refs.

References:

[1] WICKENS A H. The dynamic stability of railway vehicle wheelsets and bogies having profiled wheels[J]. International Journal of Solids and Structures, 1965, 1(3): 319-341.
[2] PATER A D. The approximate determination of the hunting movement of a railway vehicle by aid of the method of Krylov and Bogoljubov[J]. Applied Scientific Research, 1961, 10(1): 205-228.
[3] TRUE H. Multiple attractors and critical parameters and how to find them numerically: the right, the wrong and the gambling way[J]. Vehicle System Dynamics, 2013, 51(3):443-459.
[4] 曾 京.车辆系统的蛇行运动分叉及极限环的数值计算[J].铁道学报,1996,18(3):13-19.ZENG Jing. Numerical calculation of hunting bifurcation and limit cycle of vehicle system[J]. Journal of the China Railway Society, 1996, 18(3): 13-19.(in Chinese)
[5] POLACH O. Wheel profile design for target conicity and wide tread wear spreading[J]. Wear, 2011, 271(1/2): 195-202.
[6] POLACH O. Characteristic parameters of nonlinear wheel/rail contact geometry[J]. Vehicle System Dynamics, 2010, 48(S): 19-36.
[7] POLACH O, NICKISCH D. Wheel/rail contact geometry parameters in regard to vehicle behaviour and their alteration with wear[J]. Wear, 2016, 366/367: 200-208.
[8] 张卫华,罗 仁,宋春元,等.基于电机动力吸振的高速列车蛇行运动控制[J].交通运输工程学报,2020,20(5):125-134.ZHANG Wei-hua, LUO Ren, SONG Chun-yuan, et al. Hunting control of high-speed train using traction motor as dynamic absorber[J]. Journal of Traffic and Transportation Engineering, 2020, 20(5): 125-134.(in Chinese)
[9] 祁亚运,戴焕云,魏 来,等.变刚度转臂定位节点对地铁车辆车轮磨耗的影响[J].振动与冲击,2019,38(6):100-107.QI Ya-yun, DAI Huan-yun, WEI Lai, et al. Influence of changing the rigid arm positioning node on the wheel wear of metro vehicles[J]. Journal of Vibration and Shock, 2019, 38(6): 100-107.(in Chinese)
[10] 李国栋,曾 京,池茂儒,等.高速列车轮轨匹配关系改进研究[J].机械工程学报,2018,54(4):93-100.LI Guo-dong, ZENG Jing, CHI Mao-ru, et al. Study on the improvement of wheel-rail matching relationship for high speed train[J]. Journal of Mechanical Engineering, 2018, 54(4): 93-100.(in Chinese)
[11] ZHANG Ting-ting, DAI Huan-yun. On the nonlinear dynamics of a high-speed railway vehicle with nonsmooth elements[J]. Applied Mathematical Modelling, 2019, 76: 526-544.
[12] GUO Jing-ying, SHI Huai-long, LUO Ren, et al. Bifurcation analysis of a railway wheelset with nonlinear wheel-rail contact[J]. Nonlinear Dynamics, 2021, 104(2): 989 -1005.
[13] 何旭升,吴会超,高 峰.高速动车组晃车机理试验研究[J].大连交通大学学报,2017,38(1):21-25.HE Xu-sheng, WU Hui-chao, GAO Feng. Test study on carbody swing of high-speed EMUs[J]. Journal of Dalian Jiaotong University, 2017, 38(1): 21-25.(in Chinese)
[14] 陈迪来,沈 钢,宗聪聪.基于模态追踪的地铁车辆低频横向晃动分析[J].铁道学报,2019,41(10):47-52.CHEN Di-lai, SHEN Gang, ZONG Cong-cong. Analysis of low-frequency lateral swaying of metro vehicle based on mode tracing[J]. Journal of the China Railway Society, 2019, 41(10): 47-52.(in Chinese)
[15] 陈经纬,崔 涛,孙建锋,等.基于高速列车异常晃动的钢轨廓形打磨管理[J].机车电传动,2020(5):128-131,137.CHEN Jing-wei, CUI Tao, SUN Jian-feng, et al. Grinding management of rail profile based on abnormal hunting of high-speed train[J]. Electric Drive For Locomotives, 2020(5):128-131, 137.(in Chinese)
[16] HUANG Cai-hong, ZENG Jing, LIANG Shu-lin. Carbody hunting investigation of a high speed passenger car[J]. Journal of Mechanical Science and Technology, 2013, 27(8), 2283-2292.
[17] 夏张辉,周劲松,宫 岛,等.基于模态连续追踪的铁道车辆车体低频横向晃动现象研究[J].铁道学报,2018,40(12):46-54.XIA Zhang-hui, ZHOU Jin-song, GONG Dao, et al. Research on low-frequency lateral sway of railway vehicle body based on modal continuous tracking[J]. Journal of the China Railway Society, 2018, 40(12): 46-54.(in Chinese)
[18] QI Ya-yun, DAI Huan-yun, SONG Chun-yuan, et al. Shaking analysis of high-speed train's carbody when cross lines[J]. Journal of Mechanical Science and Technology, 2019, 33(3): 1055-1064.
[19] 崔利通,李国栋,宋春元,等.高速动车组悬挂参数优化研究[J].铁道学报,2021,43(4):42-50.CUI Li-tong, LI Guo-dong, SONG Chun-yuan, et al. Study on optimization of suspension parameters of high-speed EMU trains[J]. Journal of the China Railway Society, 2021, 43(4): 42-50.(in Chinese)
[20] WEI Lai, ZENG Jing, CHI Mao-ru, et al. Carbody elastic vibrations of high-speed vehicles caused by bogie hunting instability[J]. Vehicle System Dynamics, 2017, 55(9): 1321-1342.
[21] 关庆华,温泽峰,池茂儒,等.轮对蛇行运动的相位同步模态分析[J].机械工程学报,2021,57(24):279-288. GUAN Qing-hua, WEN Ze-feng, CHI Mao-ru, et al. Phase synchronization modal analysis of wheelset hunting motion[J]. Journal of Mechanical Engineering, 2021, 57(24): 279-288.(in Chinese)
[22] SHI Huai-long, WU Ping-bo. Flexible vibration analysis for car body of high-speed EMU[J]. Journal of Mechanical Science and Technology, 2016, 30(1): 55-66.
[23] XU Kai, FENG Zheng, WU Hao, et al. Investigating the influence of rail grinding on stability, vibration, and ride comfort of high-speed EMUs using multi-body dynamics modelling[J]. Vehicle System Dynamics, 2019, 57(11): 1621-1642.
[24] 周清跃,田常海,张银花,等.CRH3型动车组构架横向失稳成因分析[J].中国铁道科学,2014,35(6):105-110.ZHOU Qing-yue, TIAN Chang-hai, ZHANG Yin-hua, et al. Cause analysis for the lateral instability of CRH3 EMU framework[J]. China Railway Science, 2014, 35(6): 105-110.(in Chinese)
[25] 杨震寰,戴焕云,石俊杰,等.磨耗后轮轨型面接触关系及线路适应性分析[J].铁道学报,2021,43(5):37-46.YANG Zhen-huan, DAI Huan-yun, SHI Jun-jie, et al. Analysis of worn wheel-rail contact relationship and line adaptability[J]. Journal of the China Railway Society, 2021, 43(5): 37-46.(in Chinese)
[26] 李凡松,王建斌,石怀龙,等.动车组车体异常弹性振动原因及抑制措施研究[J].机械工程学报,2019,55(12):178-188.LI Fan-song, WANG Jian-bin, SHI Huai-long, et al. Research on causes and countermeasures of abnormal flexible vibration of car body for electric multiple units[J]. Journal of Mechanical Engineering, 2019, 55(12): 178-188.(in Chinese)
[27] WANG Qun-sheng, ZENG Jing, WU Yi, et al. Study on semi-active suspension applied on carbody underneath suspended system of high-speed railway vehicle[J]. Journal of Vibration and Control, 2020, 26(9/10): 671-679.
[28] KOYANAGI S,栾平景.设计柔性转向架运行特性的方法(上):柔性转向架的蛇行运动波长[J].国外铁道车辆,1993,30(5):23-27.KOYANAGI S, LUAN Ping-jing. A method for designing the operating characteristics of flexible bogies(Part 1)—hunting motion wavelength of flexible bogies[J]. Foreign Rolling Stock, 1993, 30(5): 23-27.(in Chinese)
[29] KOYANAGI S,栾平景.设计柔性转向架运行特性的方法(下)[J].国外铁道车辆,1993,30(6):40-45.KOYANAGI S, LUAN Ping-jing. A method for designing the operating characteristics of flexible bogies(Part 2)[J]. Foreign Rolling Stock, 1993, 30(6): 40-45.(in Chinese)
[30] 任尊松,刘志明.高速动车组振动传递及频率分布规律[J].机械工程学报,2013,49(16):1-7. REN Zun-song, LIU Zhi-ming. Vibration and frequency domain characteristics of high speed train[J]. Journal of Mechanical Engineering, 2013, 49(16): 1-7.(in Chinese)
[31] 干 锋,戴焕云.基于空间矢量映射的新型轮轨接触点算法[J].机械工程学报,2015,51(10):119-128.GAN Feng, DAI Huan-yun. New wheel-rail contact point algorithm method based on the space vector mapping principle[J]. Journal of Mechanical Engineering, 2015, 51(10): 119-128.(in Chinese)
[32] 干 锋,戴焕云,高 浩,等.铁道车辆不同踏面等效锥度和轮轨接触关系计算[J].铁道学报,2013,35(9):19-24.GAN Feng, DAI Huan-yun, GAO Hao, et al. Calculation of equivalent conicity and wheel-rail contact relationship of different railway vehicle treads[J]. Journal of the China Railway Society, 2013, 35(9): 19-24.(in Chinese)

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Last Update: 2022-03-20