Volume 16 Issue 2
. 
Turn off MathJax
Article Contents
Article Navigation >  Journal of Traffic and Transportation Engineering  > 2016  >  16(2): 64-71
Next Previous
YANG Bing, LIAO Zhen, MA Bai-quan, XIAO Shou-ne, YANG Guang-wu, ZHU Tao. Solving method of fatigue parameters of vehicle structures based on projection in spherical direction cosine group[J]. Journal of Traffic and Transportation Engineering, 2016, 16(2): 64-71. doi: 10.19818/j.cnki.1671-1637.2016.02.008
Citation: YANG Bing, LIAO Zhen, MA Bai-quan, XIAO Shou-ne, YANG Guang-wu, ZHU Tao. Solving method of fatigue parameters of vehicle structures based on projection in spherical direction cosine group[J]. Journal of Traffic and Transportation Engineering, 2016, 16(2): 64-71. doi: 10.19818/j.cnki.1671-1637.2016.02.008
shu

Solving method of fatigue parameters of vehicle structures based on projection in spherical direction cosine group

doi: 10.19818/j.cnki.1671-1637.2016.02.008

  • State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

More Information
  • Author Bio:

    YAN GBing(1979-), male, associate researcher, PhD, +86-28-86466433, yb@swjtu.cn

  • Received Date: 2015-11-11
  • Publish Date: 2016-04-25
    Abstract
  • In the traditional projection method, the maximum principal stress was assumed to be the maximum tensile stress in advance, and the tension/compression properties of principal stress were not taken into account in the projection process.To improve the above inadequacies, a solving method of fatigue parameters based on the projection in spherical direction cosine group was proposed.A series of direction cosines around the points in structure were built, and the direction of the maximum tensile stress under multiple loading conditions was searched.In the process of calculating the maximum stress and the minimum stress, the directions of principal stress were retained, hence, the original tension/compression properties of stresses were preserved.The fatigue strength assessments of welded frame of three-axle bogie and the axle box body of vehicle were analyzed by using both the traditional projection method and the proposed solving method respectively.Analysis result indicates that for the welded frame, the maximumstress of node 254570 obtained by the proposed method is 19.4% higher than the value of the traditional projection method.The large differences of the minimum stresses deduced from two methods exist at 27.8%of nodes, the opposite results even exist in signs of the minimum stresses at several nodes.The revised equivalent stress amplitudes obtained by the traditional projection method are at least 1 MPa lower than the values obtained by the proposed method at 12% of nodes, and the values were even 34.73% lower at individual node.Therefore, the subsequent fatigue strength assessment based on such fatigue parameters is unsafe.For the axle box body, the symmetrical cyclic stress amplitudes obtained by the traditional projection method deviate from the actual situation.The values of some nodes are even 45.32% lower or 51.23% higher than the values calculated by the proposed method, which will lead to dangerous or overconservative results in fatigue analysis. The direction of the maximum tensile stress is determined, and the tension/compression properties of principal stresses are considered in the present method, therefore, the proposed method is more rational and credible in fatigue analysis compared with the traditional projection method.

     

    • FullText(HTML)
  • loading
    • References(22)
  • [1]
    ZHANG Wei-hua, WU Ping-bo, WU Xue-jie, et al. An investigation into structural failures of Chinese high-speed trains[J]. Engineering Failure Analysis, 2006, 13(3): 427-441. doi: 10.1016/j.engfailanal.2004.12.037
    [2]
    JEON K W, SHIN K B, KIM J S. A study on fatigue life and strength of a GFRP composite bogie frame for urban subway trains[J]. Procedia Engineering, 2011, 10: 2405-2410. doi: 10.1016/j.proeng.2011.04.396
    [3]
    AN Qi, LI Fu, FU Mao-hai. Influences of traction motor vibration on bogie frame fatigue strength[J]. Journal of Southwest Jiaotong University, 2010, 45(2): 209-212. (in Chinese) doi: 10.3969/j.issn.0258-2724.2010.02.008
    [4]
    LU Yao-hui, FENG Zhen, CHEN Tian-li, et al. Evaluation method of fatigue strength for carbody of high-speed train under influence of aerodynamic loads[J]. Journal of Traffic and Transportation Engineering, 2014, 14(6): 44-50. (in Chinese) doi: 10.3969/j.issn.1671-1637.2014.06.006
    [5]
    QIN Guo-dong, LIU Zhi-ming, CUI Er-guang, et al. Practical analysis method for fatigue life of welded frame of speed-up bogie[J]. China Railway Science, 2004, 25(1): 46-51. (in Chinese). doi: 10.3321/j.issn:1001-4632.2004.01.008
    [6]
    MIAO Bing-rong, ZHANG Li-min, ZHANG Wei-hua, et al. High-speed train carbody structure fatigue simulation based on dynamic characteristics of the overall vehicle[J]. Journal of the China Railway Society, 2010, 32(6): 101-108. (in Chinese) doi: 10.3969/j.issn.1001-8360.2010.06.017
    [7]
    LIU Xu, ZHANG Kai-lin, YAO Yuan, et al. Application of notch stress method in fatigue analysis of locomotive welded frame[J]. Journal of the China Railway Society, 2015, 37(1): 24-29. (in Chinese) doi: 10.3969/j.issn.1001-8360.2015.01.004
    [8]
    ZHANG Peng-pai, LIU Jin-zhao, ZHANG Bin, et al. Assessment method for fatigue strength of EMU wheel based on principal stress method and amendatory Crossland method[J]. China Railway Science, 2014, 35(2): 52-57. (in Chinese) doi: 10.3969/j.issn.1001-4632.2014.02.09
    [9]
    LI Bao-rui, ZHAO Yong-xiang. Strength assessment for bogie frame based on UIC standard[J]. Machinery, 2012, 39(10): 9-12. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-MECH201210002.htm
    [10]
    LIU Hui-ying, ZHANG Peng-pai, MI Cai-ying. Research of design method of rolling stock wheel strengths[J]. Journal of the China Railway Society, 2007, 29(1): 102-108. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB200701021.htm
    [11]
    XIAO Shou-ne, YANG Chao, YANG Guang-wu. A novel fatigue analysis method of welded frames[J]. Journal of Southwest Jiaotong University, 2013, 48(2): 199-204. (in Chinese) doi: 10.3969/j.issn.0258-2724.2013.02.002
    [12]
    CROSSLAND B. Effect of large hydrostatic pressure on the torsional fatigue strength of an alloy steel[C]//Institution of Mechanical Engineers. Proceedings of the International Conference on Fatigue of Metals. London: Institution of Mechanical Engineers, 1956: 138-149.
    [13]
    European Rail Research Institute. Programme of tests to be carried out on wagons with steel underframe and body structure(suitable for being fitted with the automatic buffing and draw coupler)and on their cast seel frame bogies[R]. Utrecht: European Rail Research Institute, 1997.
    [14]
    JEON K W, SHIN K B, KIM J S. A study on evaluation of fatigue strength of a GFRP composite bogie frame for urban subway vehicles[J]. Advanced Composite Materials, 2013, 22(4): 213-225.
    [15]
    DEMILLY F, OWEN C, BRUNEL J F, et al. FEA and methodology of design optimization of wheel-rail interface for heavy haul wagon wheels[C]//International Heavy Haul Association. Proceedings of the 9th International Heavy Haul Conference. Beijing: China Railway Publishing House, 2009: 426-432.
    [16]
    SUN Shu-lei, ZHOU Zhang-yi, LI Fu, et al. Fatigue strength analysis of 160 km/h high speed freight car wheel web[C]//PENG Qi-yuan, KELVIN C P, QIU Yan-jun, et al. Proceedings of the 3rd International Conference on Transportation Engineering. Reston: ASCE, 2011: 2550-2555.
    [17]
    KIM C S, KANG G H, JANG S H. A study on the development of the Korean gauge-adjustable wheelset system for freight train[J]. Advanced Materials Research, 2011, 199-200: 337-340.
    [18]
    LU Jie, MI Cai-ying, LIU Ya-jun, et al. Research on wheel parametric design based on ANSYS and fatigue post-processing system[J]. Electric Drive for Locomotives, 2013(6): 32-35. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JCDC201306009.htm
    [19]
    YANG Bing, ZHAO Yong-xiang. Experimental research on dominant effective short fatigue crack behavior for railway LZ50axle steel[J]. International Journal of Fatigue, 2012, 35(1): 71-78.
    [20]
    JUN H K, JUNG H S, LEE D H, et al. Fatigue crack evaluation on the underframe of EMU carbody[J]. Procedia Engineering, 2010, 2(1): 893-900.
    [21]
    YANG Bing, ZHAO Yong-xiang. Fatigue reliability analysis of PW200bogie[J]. China Mechanical Engineering, 2005, 16(13): 1193-1197. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGJX200513017.htm
    [22]
    XIAO Shou-ne, YANG Bing, QU Tian-wei, et al. Extrapolation and application of standard EN 13749 in strength analysis of locomotive axle-box body[J]. Electric Drive for Locomotives, 2013(2): 38-41. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JCDC201302012.htm
    • Relative Articles
    • Supplements(0)
    • Cited By

Catalog

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (666) PDF downloads(562) 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