Study on Influence of Ballast Spring Modulus on Track Structure Based on Finite Element Method

Authors

  • Tian Yang China Railway (Tianjin) rail transit investment and Construction Co., Ltd.

DOI:

https://doi.org/10.30564/frae.v4i2.3484

Abstract

The finite element method is used to simulate the orbital structure, and the finite element model of "rail - sleepers - ballast" can be established. The model of the elastic modulus of different ballast and sleeper is calculated, and the rail displacement, the sleeper stress and the fastening force are deduced. The results show that the elastic modulus of the ballast can be increased to reduce the displacement of the rail and the supporting force of the fastener, but the stress of the sleeper will be increased. When the modulus of elasticity increases, the rail displacement, small.

Keywords:

Railway ballast; Elastic modulus; Finite element method

References

[1] Gilbert B. Discrete numerical model for granular assemblies: Cundall, P A; Strack, O D L Geotechnique, V29, N1, March 1979, P47 – 65[J]. Sports Illustrated, 1980, 16(4):77.

[2] Ting J M, Khwaja M, Meachum L R, et al. An ellipse‐ based discrete element model for granular materials[J]. International Journal for Numerical & Analytical Methods in Geomechanics, 1993, 17(9):603-623.

[3] XU Yang, GAO Liang, YANG Guotao, et al.Mechanical modeling of ballast particle and its influence on mechanical properties of track bed [J]. Journal of the China Railway Society, 2014 (9): 73-78.

[4] XIAO Hong, GAO Liang, HOU Bo-wen.Three-dimensional discrete element analysis of vibration characteristics of railway track bed [J]. Journal of Railway Engineering Society, 2009, 26 (9): 14-17.

[5] Journal of Noise and Vibration Control, 2015, 35 (6): 181-184. HUANG Li, LEI Xiao-yan, LIU Qing-jie, et al.Study on Continuous Measurement Method of Wheel / Rail Vertical Force [J].

[6] LUO Qi.Study on mechanical properties of ballasted track bed of high speed railway based on discrete element method [D]. Beijing Jiaotong University, 2014.

[7] FENG Jun-fu.Discrete element analysis and experimental verification of mechanical properties of railway ballast [D]. Dalian University of Technology, 2016.

[8] Journal of Railway Science and Engineering, 2016, 13(6): 1031-1038. JIN Yan, ZHAO Jin-feng, JI Shun-ying. Discrete element analysis of cumulative sedimentation and deformation modulus

[9] DU Xin. Discrete element modeling and inertial characteristic optimization of real ballast particles [J]. Journal of the China Railway Society, 2014 (2): 95-102.

[10] Hossain S, Mahmoudi A, Truman C E, et al. Abaqus conference, Warrington, UK[J]. Biochemical Journal, 2004, 181(2):497-506.

[11] Zhuang Zhuo. ABAQUS / Standard Introduction to Finite Element Software [M]. Tsinghua University Press, 1998.

[12] Rose J G, Purcell M L, Liu Q. Suitability of Earth and Granular Materials Pressure Cells for Measuring Railway Trackbed Tie/Ballast Interfacial Pressures[C]//2016 Joint Rail Conference. American Society of Mechanical Engineers, 2016: V001T01A010-V001T01A010.

Downloads

Issue

Vol. 4 , Iss. 2 (October 2021)

Article Type

Articles

License

Copyright and Licensing

The authors shall retain the copyright of their work but allow the Publisher to publish, copy, distribute, and convey the work.

Frontiers Research of Architecture and Engineering publishes accepted manuscripts under Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). Authors who submit their papers for publication by Frontiers Research of Architecture and Engineering agree to have the CC BY-NC 4.0 license applied to their work, and that anyone is allowed to reuse the article or part of it free of charge for non-commercial use. As long as you follow the license terms and original source is properly cited, anyone may copy, redistribute the material in any medium or format, remix, transform, and build upon the material.

License Policy for Reuse of Third-Party Materials

If a manuscript submitted to the journal contains the materials which are held in copyright by a third-party, authors are responsible for obtaining permissions from the copyright holder to reuse or republish any previously published figures, illustrations, charts, tables, photographs, and text excerpts, etc. When submitting a manuscript, official written proof of permission must be provided and clearly stated in the cover letter.
The editorial office of the journal has the right to reject/retract articles that reuse third-party materials without permission.

Journal Policies on Data Sharing

We encourage authors to share articles published in our journal to other data platforms, but only if it is noted that it has been published in this journal.