Ballast Flying DEM Microscopic Analysis and Counteracting Measures

Abstract:

Ballast flying problems obsess the high speed railway developments, causing damages to the train and deteriorations to the rail. In the paper, DEM is used to conduct ballast flying mechanism microscopic study, results show ballast flying increases with train dynamic force, and decreases with ballast size and friction coefficient, ballast flying counteracting measures are presented, such as ballast bed parameter and ballast glue. In the end, future possible microscopic ballast flying model method is presented by DEM coupled with CFD.

• Periodical: Applied Mechanics and Materials (Volumes 97-98)
• Pages: 266-270
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.97-98.266
• Online since: September 2011
• Authors: Guo Qing Jing, Liang Gao, Xiao Lin Sun
• Keywords: Ballast Flying, Computational Fluid Dynamics (CFD), DEM, High-Speed Railway (HSR)

References

[1] Huawu He, Ballastless track technology, China railway publishing house, in Chinese, (2005)

[2] D. F. Cannon, K.-O. Edel, S. L. Grassie, K. Sawley. Rail defects: an overview. Fatigue & Fracture of Engineering Materials and Structures, 26(10), 865¨C886, (2003)

DOI: 10.1046/j.1460-2695.2003.00693.x

[3] Kawashima. Experimental Studies on Ballast-Flying Phenomenon Caused by Dropping of Accreted Snow/Ice from High-Speed Trains, Jour. of Railway Technical Research Institute .Vol.17，No.8, 31~36, (2003)

[4] A. Quinn, M. Hayward. Full-scale aerodynamic measures underneath a high speed train.BBAA VI International Colloquium, Bluff Bodies Aerodynamics & Applications Milano, Italy, July, (2008)

[5] Itasca: UDEC (Universal Distinct Element Code), Itasca Consulting Group Inc.

[6] Azéma,É. Étude numérique des matériaux granulaires à grains polyédriques: rhéologie quasi-statique, dynamique vibratoire, application au procédé de bourrage du ballast[D]. (2007)

[7] Normes françaises. 1996. NF F 53-69. Normes françaises, Installations fixes ferroviaires, Ballasts et gravillons de soufflage, Caractéristiqueset spécifications, Paris.

[8] Interim provisions on extra grade ballast of 350km/h lines (on trial), Beijing, china, (2006)

[9] Notification on further strengthening the quality control of railway ballast, Beijing, china, (2009)

[10] M. Yhshida, M. Uchida, N Yaguchi, N. Mifune, Countermeasures for Ballast-flying Phenomena Caused by High-speed Trains, RTRI Report Vol.6, No.6, 1992. 6

[11] Research on the effect of ballast glue to roadbed parameters, Bin Wang, Ping Wang, Railway standard design, 2010(11)

[12] Itasca, PFC3D reference manual. Itasca Consulting Group. Minnesota, USA, (2006)