Load and damage characteristics of motor hanger of high-speed EMU

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Journal of Vibration and Shock ›› 2022, Vol. 41 ›› Issue (9) : 219-226.

LI Junjie, REN Zunsong, WEI Xue

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Abstract

Taking the motor hanger of high-speed EMU as the research object, the plate spring force sensor of the motor hanger was made using load calibration method. The vertical load history of the motor hanger was obtained from line test. The test load was decomposed into the trend load and dynamic load. The load characteristics of the motor hanger under typical working conditions such as starting traction, high and low speed straight line with high and low speed, curve passing, braking and parking were analyzed combined with the vehicle gyroscope signal and the speed signal. On this basis, the load spectrum of the motor hanger were given, the characteristics of load amplitude and frequency in various conditions were analyzed. The variation rule of fatigue damage density and the damage distribution at all levels were analyzed. The results show that, the load of motor hanger is mainly composed of dynamic load caused by vibration and trend load caused by motor torque. Compared with 1 and 3 side of the motor hanger, 2 and 4 side of the motor hanger are greatly affected by the output torque of motor, especially in the condition of starting and braking. The load RMS value increased by 62% when the train speed increased from 195 km/h to 295 km/h. With the increase of the speed, the main vibration frequency of the motor hanger increases proportively. Under the same mileage, the damage density is the highest in the linear condition and the lowest in the starting condition. The damage of motor hanger is mainly caused by dynamic load, and the damage proportion is 99.6%. The damage caused by the load spectrum in the mid-amplitude region accounts for more than 93% of the total.

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motor hanger / dynamic load / load spectrum / fatigue damage

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LI Junjie, REN Zunsong, WEI Xue. Load and damage characteristics of motor hanger of high-speed EMU[J]. Journal of Vibration and Shock, 2022, 41(9): 219-226

References

[1] 王文静, 惠晓龙, 马纪军. 高速列车设备舱支架疲劳裂纹机理研究[J]. 机械工程学报, 2015, 51(6): 142-147.
WANG Wen-jing, HUI Xiao-long, MA Ji-jun. Fatigue crack mechanism research on high speed train equipment cabin frame[J]. Journal of Mechanical Engineering, 2015, 51(6): 142-147.
[2] 李广全, 刘志明, 王文静, 等. 高速动车组齿轮箱疲劳裂纹机理分析研究[J]. 机械工程学报, 2017, 53(2): 99-105.
LI Guang-quan, LIU Zhi-ming, WANG Wen-jing, et al. Fatigue crack mechanism study on high speed EMU gearbox[J]. Journal of Mechanical Engineering, 2017, 53(2): 99-105.
[3] 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.
WANG Wen-jing, WANG Yan, SUN Shou-guang, et al. Long-term load spectrum test of high-speed train bogie[J]. Journal of Southwest Jiaotong University, 2015, 50(1): 84-89.
[4] 秦远田, 陈国平, 余岭, 等. 复杂结构移动载荷识别的有限元法[J]. 南京航空航天大学学报, 2008, 40(02):174-179.
QIN Yuan-tian, CHEN Guo-ping, YU Ling, et al. Moving Load Identification Using Finite Element Method for Complex Strcture[J]. Journal of Nanjing University of Aeronautics and Astronautics, 2008, 40(2): 174-179.
[5] 许锋, 陈怀海, 鲍明. 机械振动载荷识别研究的现状与未来[J]. 中国机械工程, 2002, 13(06):82-87+6.
XU Feng, CHEN Huai-hai, BAO Ming. Force identification for mechanical vibration state-of-the-art and prospect [J]. China Mechanical Engineering, 2002, 13Journal of the China Railway Society, 2016, 38(10): 27-33(06):82-87+6.
[6] 赵海板, 马振国, 徐伟, 等. 动车组电机吊架焊接构件裂纹分析[J]. 金属热处理, 2019, 44(S1): 233-237.
Zhao Hai-ban, Ma Zhen-guo, Xu Wei, et al. Crack analysis of welded components of motor hanger of EMU[J]. Heat Treatment of Metal, 2019, 44(S1): 233-237.
[7] 王千叶. CRH3型动车组转向架电机吊架裂纹故障的分析研究[J]. 世界有色金属, 2017(02): 164+166...
Wang Qian-ye. Study on Crack Faults of CRH3 Motor Beam[J]. World Nonferrous Metal, 2017(02): 164+166.
[8] 张丽, 任尊松, 孙守光, 等. 考虑齿轮传动影响的高速动车组电机吊架载荷及动应力研究[J]. 机械工程学报, 2016, 2(04): 133-140.
Zhang Li, Ren Zun-song, Sun Shou-guang, et al. Research on Dynamic Load and Stress of High-speed EMU Motor Hanger Considering Influence of Gear Transmission System[J]. Journal of Mechanical Engineering, 2016, 2(04): 133-140.
[9] 朱涛, 肖守讷, 阳光武. 载荷识别研究进展及其运用于铁道轮-轨载荷研究概述[J]. 铁道学报, 2011, 33(10):29-36.
ZHU Tao, XIAO Shou-nei, YANG Guang-wu. State-of-the-art Develorment of Load Identification and Its Application in Study on Wheel-rail Forces[J]. Journal of the China Railway Society, 2011, 33(10):29-36.
[10] Inoue H, Harrigan J J, Reid S R.Review of inverse analysis for indirect measurement of impact force[J]. Applied Mechanics Reviews, 2001, 54 (6) :503-524.
[11] BARTLETT F D, FLANNELLY W G. Modal verification of force determination for measuring vibration loads[J]. Journal of the American Helicopter Society, 1979, 62:10-1.
[12] B.Hillary, D.J.Ewins. The use of strain gauges in force Determination and frequency response function measurement [C] //2nd International Modal Analysis Conference. Orlando:IMAC, 1984.
[13] Kreitinger T, Luo H L, Force Identification from Structur-al Responses[C]//Proceedings of the1987SEM Spring Conference, 1987:851-855.
[14] 杨帆, 张方. 基于小波级数分解法的动载荷识别研究[J].清华大学学报(自然科学版), 2013, 53(08):1166-1171.
YANG Fan, ZHANG Fang. Identification of dynamic force based on wavelet series decomposition[J]. Journal of the Tsinghua University (Science and Technology), 2013, 53(08):1166-1171.
[15] 王萌, 李强, 孙守光. 基于应力响应的多频率激励载荷识别研究[J]. 铁道学报, 2015, 37(2):27-33.
WANG Meng, LI Qiang, SUN Shou-guang. Study of Multi-frequency Exciting Load Identification Based on Dynamic Stress Response [J]. Journal of the China Railway Society, 2015, 37(2):27-33.
[16] 郭奇宗. CRH6型动车组转向架载荷谱试验研究[D]. 北京交通大学, 2014.
GUO Qi-zong. Study on testing for load spectrum of CRH6 bogie[D]. Beijing:Beijing Jiaotong University, 2014.
[17] 李广全, 王文静, 杨广雪. 高速列车齿轮箱载荷特性分析[J]. 机械工程学报, 2018, 54(4): 270-277.
LI Guang-quan, WANG Wen-jing, YANG Guang-xue. Analysis on load characteristics of high-speed train gearbox[J]. Journal of Mechanical Engineering, 2018, 54(4): 270-277.
[18] 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[J]. 交通运输工程学报, 2019, 19(4): 81-93.
YANG Guang-xue, ZHANG Ya-yu, LI Guang-quan. Axle box spring load characteristics and fatigue damage of high-speed train[J]. Journal of Traffic and Transportation Engineering, 2019, 19(4): 81-93.
[19] 杨广雪, 李广全, 周君锋, 等. 高速动车组牵引拉杆载荷特性研究[J]. 机械工程学报, 2020, 56(08):200-206.
YANG Guang-xue, LI Guang-quan,ZHOU Jun-feng, et al. Study on Traction Rod Load Characteristics of High Speed Train[J]. Journal of Mechanical Engineering,, 2020, 56(08): 200-206.
[20] CHENG Jun-sheng, YU De-jie, YANG Yu. Research on the intrinsic mode function(IMF) criterion in EMD method [J]. Multichannel Systems and Signal Processing, 2006, 20(4):817-824.
[21] SWAMI A, MENDE J M. ARMA parameter estimation using only output cumulants[J]. IEEE Translation on Acoustica Speech & Signal Processing, 1990, 38(7):1257-1265.
[22] 高镇同. 载荷谱的编制[J]. 航空学报, 1980, 2(2):36-37.
GAO Zhentong. Load spectrum establishment[J]. Chinese Journal of Aeronautics, 1980, 2(2):36-37.
[23] 任尊松, 孙守光, 李强. 高速动车组轴箱弹簧载荷动态特性[J]. 机械工程学报, 2010, 46(10): 109-114.
REN Zun-song, SUN Shou-guang, LI Qiang. Axle spring load test and dynamic characteristics analysis of high speed EMU[J]. Journal of Mechanical Engineering, 2010, 46(10): 109-114.
[24] 张亚禹, 孙守光, 杨广雪, 等. 高速列车转向架构架载荷特征及疲劳损伤评估[J].机械工程学报, 2020, 56(10): 163-171.
ZHANG Ya-yu, SUN Shou-guang，YANG Guang-xue，et al. Load Characteristics and Fatigue Damage Assessment of High Speed Train Bogie Frame[J]. Journal of Mechanical Engineering, 2020, 56(10): 163-171.
[25] ZHANG Shu-guang. Study on testing and establishment method for the load spectrum of bogie frame for high-speed trains[J]. Science in China, Series E:Technology Sciences, 2008, 51(12): 2142-2151.
[26] 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[J]. 铁道学报, 2016, 38(10): 27-33.
ZOU Hua, LI Qiang, SUN Shou-guang. Study on intercity train load spectrum distribution estimation and calibration methods based load demarcation[J]. Journal of the China Railway Society, 2016, 38(10): 27-33.
[27] 任尊松, 曹杰, 李玉怡, 等. 高速动车组构架载荷特征研究[J]. 工程力学. doi: 10.6052/j.issn.1000-4750.2020.03.0181.
REN Zun-song, CAO Jie, LI Yu-yi, et al. THE LOAD CHARACTERISTICS OF THE BOGIEFRAME OF HIGH-SPEED EMUS[J]. Engineering Mechanics. doi: 10.6052/j.issn.1000-4750.2020.03.0181.
[28] Chen Nian-zhong. Palmgren-Miner’s rule and fracture mechanics-based inspection planning[J]. Engineering Fracture Mechanics, 2011 (78) :3166-3182 Sciences, 2008, 51(12): 2142-2151.