Volume 23 Issue 6
Dec.  2023
Turn off MathJax
Article Contents
Article Navigation >  Journal of Traffic and Transportation Engineering  > 2023  >  23(6): 206-215
Next Previous
LI Miao, MA Ya-qun, WANG Yu, LUO Shi-hui, MA Wei-hua, LEI Cheng. Strength evaluation of levitation frame for medium and low speed maglev train based on full-scale bench test[J]. Journal of Traffic and Transportation Engineering, 2023, 23(6): 206-215. doi: 10.19818/j.cnki.1671-1637.2023.06.013
Citation: LI Miao, MA Ya-qun, WANG Yu, LUO Shi-hui, MA Wei-hua, LEI Cheng. Strength evaluation of levitation frame for medium and low speed maglev train based on full-scale bench test[J]. Journal of Traffic and Transportation Engineering, 2023, 23(6): 206-215. doi: 10.19818/j.cnki.1671-1637.2023.06.013
shu

Strength evaluation of levitation frame for medium and low speed maglev train based on full-scale bench test

doi: 10.19818/j.cnki.1671-1637.2023.06.013
  • 1.

    State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

  • 2.

    CRRC Changchun Railway Vehicles Co., Ltd., Changchun 130062, Jilin, China

  • 3.

    Henan Engineering Research Center of Rail Transit Intelligent Security, Zhengzhou Railway Vocational and Technical College, Zhengzhou 451460, Henan, China

Funds:

National Natural Science Foundation of China 51875483

Independent Funded Research Project of State Key Laboratory of Traction Power 2020TPL-T01

Independent Funded Research Project of State Key Laboratory of Traction Power 2020TPL-T04

More Information
    Abstract
  • In order to evaluate whether the levitation frame of a medium and low speed maglev train meets the requirements of strength, the static strength and fatigue strength tests of the levitation frame were conducted by using the self-developed full-scale medium and low speed maglev strength test bench. According to the finite element analysis and the results obtained from multi-body dynamics simulation, the stress concentration position and bearing characteristics shown by the levitation frame were determined, followed by the reasonable arrangement of measuring points in a series on the levitation frame. The signals of strain response shown by the levitation frame of the train under three types of working conditions were measured, including extraordinary load, simulated main operation load, and simulated special operation load. Based on the material properties displayed by different parts of the levitation frame, the stress level of the levitation frame was evaluated through transformation calculation. Research results show that in the static strength test, large stress points of the levitation frame are mainly distribute at the corner of the bracket, the connection point between the mounting seat of support wheels and the anti-rolling beam, and the mounting seat of the parking brake sled, while the weak point obtained from the fatigue strength test is mainly at the weld joint between the longitudinal beam and the bracket. In comparison with the conventional operating conditions of the train, the stress amplitude values of the static strength and fatigue strength of the levitation frame increase by 1.06 and 4.77 times respectively under special operation conditions such as levitation failure and overloading braking. The maximum tensile stress and compressive stress of the levitation frame under all test conditions are 67.22 and -20.30 MPa, respectively, with the minimum safety factor as 1.71, indicating that the levitation frame meets the structural strength requirements. All the test data are within the envelope of the Goodman-Smith fatigue limit diagram of the corresponding material, indicating that the levitation frame meets the fatigue strength requirements. Through penetration inspection, it is identified that no cracks are found at any position of the levitation frame, which verifies the reliability of fatigue strength evaluation results of the levitation frame.

     

    • FullText(HTML)
  • loading
    • References(31)
  • [1]
    ZHAI Wan-ming, ZHAO Chun-fa. Frontiers and challenges of sciences and technologies in modern railway engineering[J]. Journal of Southwest Jiaotong University, 2016, 51(2): 209-226. (in Chinese) doi: 10.3969/j.issn.0258-2724.2016.02.001
    [2]
    XU Fei, LUO Shi-hui, DENG Zi-gang. Study on key technologies and whole speed range application of maglev rail transport[J]. Journal of the China Railway Society, 2019, 41(3): 40-49. (in Chinese) doi: 10.3969/j.issn.1001-8360.2019.03.006
    [3]
    ZHANG Min, LUO Shi-hui, GAO Chang, et al. Research on the mechanism of a newly developed levitation frame with mid-set air spring[J]. Vehicle System Dynamics, 2018, 56(12): 1797-1816. doi: 10.1080/00423114.2018.1435892
    [4]
    CAI Wen-feng, YAN Hua, YANG Ping. Analysis of the characteristics and engineering adaptability of track system for medium and low speed maglev transit[J]. Journal of Railway Engineering Society, 2015, 32(2): 54-59. (in Chinese) doi: 10.3969/j.issn.1006-2106.2015.02.011
    [5]
    MA Wei-hua, LUO Shi-hui, ZHANG Min, et al. Research review on medium and low speed maglev vehicle[J]. Journal of Traffic and Transportation Engineering, 2021, 21(1): 199-216. (in Chinese) doi: 10.19818/j.cnki.1671-1637.2021.01.009
    [6]
    HU Qi-bin. Research on the strength test method of the levitation bogie for new-type mid-low speed maglev vehicle[D]. Chengdu: Southwest Jiaotong University, 2020. (in Chinese)
    [7]
    YANG Lei. Analysis and calculation of bogie characteristics of medium and low speed maglev vehicle[D]. Changsha: National University of Defense Technology, 2003. (in Chinese)
    [8]
    ZHOU Yi, LIU Fang, LI Fei, et al. Finite element analysis of the levitation chassis of maglev vehicle based on SolidWorks and ANSYS[J]. Modern Manufacturing Engineering, 2012(8): 17-20. (in Chinese) doi: 10.3969/j.issn.1671-3133.2012.08.005
    [9]
    LEE H W, KIM K C, LEE J. Review of maglev train technologies[J]. IEEE Transactions on Magnetics, 2006, 42(7): 1917-1925. doi: 10.1109/TMAG.2006.875842
    [10]
    ZHOU Dan-feng, HANSEN C H, LI Jie, et al. Review of coupled vibration problems in EMS maglev vehicles[J]. International Journal of Acoustics and Vibration, 2010, 15(1): 10-23.
    [11]
    XIU Rui-xian, SPIRYAGIN M, WU Qing, et al. Fatigue life assessment methods for railway vehicle bogie frames[J]. Engineering Failure Analysis, 2020, 116: 104725. doi: 10.1016/j.engfailanal.2020.104725
    [12]
    KASSNER M. Fatigue strength analysis of a welded railway vehicle structure by different methods[J]. International Journal of Fatigue, 2012, 34(1): 103-111. doi: 10.1016/j.ijfatigue.2011.01.020
    [13]
    ODA Y, YAGI T, OKINO T, et al. Fatigue life estimation for welds of truck frames for rolling stock using stress frequency in service load[J]. Japan Society of Mechanical Engineers, 2007, 73(10): 1171-1176.
    [14]
    GRASSO M, XU Y, RUSSO R, et al. Mixed mode fatigue crack propagation behaviour of aluminium F357 alloy[J]. Engineering Failure Analysis, 2018(90): 463-475.
    [15]
    SARUNAC R. "Low Speed" magnetic levitation vehicle in the US[C]//IEEE. Proceedings of the IEEE/ASME Joint Railroad Conference. New York: IEEE, 1999: 130-143.
    [16]
    HAN S W, WOO K J. Evaluation of dynamic fatigue life for maglev bogie frame[J]. Journal of the Korean Society for Railway, 2010, 13(1): 1-8.
    [17]
    KIM J S. Fatigue assessment of tilting bogie frame for Korean tilting train: analysis and static tests[J]. Engineering Failure Analysis, 2006, 13(8): 1326-1337. doi: 10.1016/j.engfailanal.2005.10.007
    [18]
    HAN J W, KIM J D, SONG S Y. Fatigue strength evaluation of a bogie frame for urban maglev train with fatigue test on full-scale test rig[J]. Engineering Failure Analysis, 2013, 31: 412-420. doi: 10.1016/j.engfailanal.2013.01.009
    [19]
    WU Kai-hong, CUI Jian-kun. The deformation state analysis of the bogie on a maglev train[J]. Modern Machinery, 2017(1): 34-36. (in Chinese)
    [20]
    LUO Yu-qi, XU Ping, XIE Zhuo-jun. Research on structure optimization of running gear of maglev train[J]. Urban Mass Transit, 2011, 14(11): 86-89, 92. (in Chinese) doi: 10.3969/j.issn.1007-869X.2011.11.020
    [21]
    YAO Sheng-jun, TANG Jin-song, LI Dong-feng. Research on dynamic load and stress measurement for maglev trains with middle and low speed[J]. Rolling Stock, 2013, 51(5): 1-4. (in Chinese)
    [22]
    ZONG Ling-xiao. A research to running mechanism of new medium-low speed maglev train with its speed being 140 km·h-1[D]. Chengdu: Southwest Jiaotong University, 2016. (in Chinese)
    [23]
    WU Yuan-ke, LIU Fang, ZHANG Bin, et al. Fatigue life analysis of levitation chassis of long stator maglev vehicle[J]. Modern Manufacturing Engineering, 2016(8): 54-59, 94. (in Chinese)
    [24]
    PENG Qi-biao, LUO Hua-jun, TONG Lai-sheng, et al. Characteristics of maglev bogie for mid-low speed maglev vehicle[J]. Electric Locomotives and Mass Transit Vehicles, 2012, 35(6): 7-11. (in Chinese)
    [25]
    CHI Zhen-hua. Research on fatigue strength for levitation chassis of long stator middle-low speed maglev vehicle[D]. Chengdu: Southwest Jiaotong University, 2014. (in Chinese)
    [26]
    LI Cen, YAO Yu-jin, YU Da-lian, et al. Study on load characteristics of maglev train suspension frame based on dynamics simulation analysis[J]. Journal of Beijing Jiaotong University, 2021, 45(3): 118-125. (in Chinese)
    [27]
    ZHAO Jun. Light weight design of medium-low speed maglev train carbody[D]. Chengdu: Southwest Jiaotong University, 2017. (in Chinese)
    [28]
    LI Miao, MA Wei-hua, GONG Jun-hu, et al. Dynamic performance test of medium and low speed maglev vehicle-bridge coupled system[J]. Journal of Traffic and Transportation Engineering, 2022, 22(1): 141-154. (in Chinese) doi: 10.19818/j.cnki.1671-1637.2022.01.012
    [29]
    WEI De-hao, LUO Shi-hui, WANG Chen. Analysis on the influences of traction rod to medium-low speed maglev dynamic performance[J]. Machinery Design and Manufacture, 2018(12): 92-95. (in Chinese)
    [30]
    REN Zhi-jun. Fatigue analysis and simulation of maglev bogie in low and medium speed maglev train[D]. Changsha: National University of Defense Technology, 2005. (in Chinese)
    [31]
    SHEN Cai-yu. Fatigue strength analysis of the welded bogie frame for railway vehicle[D]. Chengdu: Southwest Jiaotong University, 2014. (in Chinese)
    • Relative Articles
    • Supplements(0)
    • Cited By

Catalog

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (910) PDF downloads(65) Cited by()
    Related

    Copyright《Journal of Traffic and Transportation Engineering》编辑部陕ICP备05001904号-1

    Address ：Editorial Department of Journal of Traffic and Transportation Engineering, Chang 'an University, Middle Section of South Second Ring Road, Xi 'an, Shaanxi（710064） Tel：029-82334388 Email：jygc@chd.edu.cn

    All visit:Today's visit:

    Supported by: Beijing Renhe Information Technology Co. Ltd    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return