Study on dynamic load factor for narrow gauge railways. application on Vietnam’s north – south line
Email:
trananhdung@utc.edu.vn
Từ khóa:
dynamic load factor, traditional, railway, ballast, 1000mm gauge
Tóm tắt
In high-speed railways, dynamic load factor has been received many studies recently. This work aims to determine the dynamic load factors of the traditional railway (1000 mm gauge) of North-South railway line in Vietnam. The objective of this research is to determine the dynamic load factors of the track based on the D19E locomotive with an axle load of 13.5 tons, rail P43, and ballast track. Simulation and experimental methods are implemented in the research. The simulation method was performed by SIMPACK software. The experimental method was carried out on a section of the North - South railway line in Vietnam. Based on the obtained simulation results, the dynamic load factors are 1.046, 1.110, and 1.361 corresponding to the speeds V=15km/h, V=30km/h, and V=70km/h. According to the experiment results, the dynamic load factors are 1.113, 1.134, and 1.181 corresponding to the speeds V=15km/h, V=30km/h, and V=70km/h. The results will be a tool for the track design engineer to implement correct design activities, and the design process will be safe and economical. Additionally, the SIMPACK software can be used to determine the dynamic coefficient for railways instead of experimental methodsTài liệu tham khảo
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[3]. M. Srinivasan, Modern Permanent Way, Somaiya Publications PVT. Ltd., Mumbai, India, 1969.
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[5]. R. H. Prause, H. Meacham, H. D. Harrison, T. John, and W. Glaeser, Assessment of Design Tools and Criteria for Urban Rail Track Structures, Urban Mass Transit Administration, 1 (1974), UMTA-MA-06-0025-74-3.
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[11]. GB 2585, Hot-rolled steel rails for railway, National Standard of China, 2007.
[12]. W. Zhai, Vehicle–Track Coupled Dynamics- Theory and Applications, Springer Singapore, 2020. https://doi.org/10.1007/978-981-32-9283-3
[13]. W. Jun, C. Kang, Curve Negotiation Performance Analysis of 9600 kW Six-Axis High-Power AC Drive Electric Freight Locomotive, Electric Drive for Locomotives, 3 (2009).
[14]. INTEC Dynamic Ltd, SIMPACK software, 2008.
[15]. N. F. Doyle, Railway Track Design, A Review of Current Practice, Occasional, Canberra: Bureau of Transport Economics, Commonwealth of Australia, (1980) 35.
Tải xuống
Chưa có dữ liệu thống kê
Nhận bài
19/04/2025
Nhận bài sửa
07/01/2026
Chấp nhận đăng
12/01/2026
Xuất bản
15/01/2026
Chuyên mục
Công trình khoa học
Kiểu trích dẫn
Tran Anh, D., Mai Van, T., & Pham Dinh, D. (1768410000). Study on dynamic load factor for narrow gauge railways. application on Vietnam’s north – south line. Tạp Chí Khoa Học Giao Thông Vận Tải, 77(1), 85-99. https://doi.org/10.47869/tcsj.77.1.7
