WEI Wei, DU Nian-bo. Influence of braking pipe on braking performance for heavy haul train[J]. Journal of Traffic and Transportation Engineering, 2011, 11(5): 49-54. doi: 10.19818/j.cnki.1671-1637.2011.05.008
Citation: WEI Wei, DU Nian-bo. Influence of braking pipe on braking performance for heavy haul train[J]. Journal of Traffic and Transportation Engineering, 2011, 11(5): 49-54. doi: 10.19818/j.cnki.1671-1637.2011.05.008

Influence of braking pipe on braking performance for heavy haul train

doi: 10.19818/j.cnki.1671-1637.2011.05.008
More Information
  • Author Bio:

    WEI Wei (1963-), male, professor, PhD, +86-411-84109291, weiwei@djtu.edu.cn

  • Received Date: 2011-05-10
  • Publish Date: 2011-10-25
  • With fluid dynamics theory, the models of braking pipe and distributing valve for heavy haul train were built, the equations of braking pipe and boundary point were solved, the braking system performances in braking process were simulated, and the influence of the lengths of main pipe and branch pipe on the braking performances was analyzed.Analysis result shows that under common braking, when the length of main pipe increases from 13.24 m to 17.24 m, the decompression time of braking pipe increases by 30.75%, and the boost time of braking cylinder increases by 20.45%.The influence of main pipe on common braking is even stronger than that of main pipe on emergency braking.Under common braking, when the length of branch pipe increases from 0.50 m to 5.00 m, the decompression time of braking pipe increases by 6.63%, and the boost time of braking cylinder increases by 5.22%.The influence of branch pipe on common braking is almost same for that of branch pipe on emergency braking.The increase length of braking pipe reduces the decompression speed of braking pipe and the boost speed of braking cylinder.The influence of the length of main pipe is stronger than that of branch pipe, and the influence becomes obviously with the increase of the distance between car and locomotive.

     

  • loading
  • [1]
    PIECHOWIAK T. Pneumatic train brake simulation method[J]. Vehicle System Dynamics, 2009, 47(12): 1-20.
    [2]
    PIECHOWI AK T. Verification of pneumatic rail way brake model[J]. Vehicle System Dynamics. 2010, 48(3): 283-299.
    [3]
    PUGI L, PALAZZOLO A, FIORAVANTI D. Simulation of rail way brake plants: an application to SAADKMS freight wagons[J]. Proceeding of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2008, 222(4): 321-329. doi: 10.1243/09544097JRRT118
    [4]
    PUGI L, MALVEZZI M, ALLOTTAB, et al. A parametric library for the simulation of a Union Internationale des Chemins de Fer (UIC) pneumatic braking system[J]. Proceeding of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2004, 218(2): 117-132. doi: 10.1243/0954409041319632
    [5]
    CANTONE L, CRESCENTI NI E, VERZICCOL R, et al, Anumerical model for the analysis of unsteady train braking and releasing manoeuvres[J]. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2009, 223(3): 305-317. doi: 10.1243/09544097JRRT240
    [6]
    CANTONE L. Train Dy: the new Union Internationale des Chemins de Fer software for freight train inter operability[J]. Proceeding of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2011, 225(1): 57-70. doi: 10.1243/09544097JRRT347
    [7]
    NAMS W, KIM HJ. A study on the improvement of release application characteristics of pneumatic brakes for freight train[J]. Journal of Mechanical Science and Technology, 2002, 16(6): 776-784.
    [8]
    WEI Wei, ZHANG Shan-rong, LIU Qing-zhong. A study on characteristic of pressure reduction of air brake system in a long train[J]. Journal of Dalian Rail way Institute, 1992, 13(4): 43-49. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-DLTD199204007.htm
    [9]
    WEI Wei, LI Wen-hui. Simulation model of train brake system[J]. Journal of the China Rail way Society, 2003, 25(1): 38-42. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-TDXB200301008.htm
    [10]
    WEI Wei, LIN Ye. Simulation of a freight train brake system with 120 valves[J]. Proceeding of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2009, 223(1): 85-92. doi: 10.1243/09544097JRRT119
    [11]
    WEI Wei. The validity of the simulation for train air brake system[J]. China Rail way Science, 2006, 27(5): 105-109. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK200605019.htm
    [12]
    WEI Wei, LIU Tao, ZHANG Jun. The simulation model of KZ1 control valve and the simulation study on train braking performance[J]. China Rail way Science, 2010, 31(1): 105-110. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK201001021.htm
    [13]
    WEI Wei. Computer simulation of 120 vehicle distributing valve and its testrig[J]. Journal of the China Rail way Society, 2000, 22(1): 31-35. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-TDXB200001006.htm
    [14]
    WEI Wei, ZHAO Lian-gang. Prediction of longitudinal dynamic coupler force of 20 000 ton connected train[J]. Journal of Dalian Jiaotong University, 2009, 30(2): 39-43. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-DLTD200902010.htm
    [15]
    WEI Wei, XIANG Yu-hang. Study of air supply system design for locomotive[J]. Journal of Dalian Jiaotong University, 2010, 31(5): 1-5. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-DLTD201005001.htm
    [16]
    WEI Wei, YU Zhong-jian. Influence of lag time for slave control loco motive on longitudinal coupler forces of 30 000 t train[J]. Journal of Traffic and Transportation Engineering, 2011, 11(2): 39-44. (in Chinese) http://transport.gfscw.cn/article/id/201102007
    [17]
    LIU Jin-zhao, SEONG W, WANG Cheng-guo, et al. Numerical simulation of 3D air charging model of the heavy haul train air brake pipes system[J]. China Rail way Science, 2005, 26(5): 66-71. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK200505014.htm

Catalog

    Article Metrics

    Article views (1836) PDF downloads(964) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return