Computational Technology Resources - CCC

B. Hou¹, Y. Zhu¹, D. Wang¹ and J. Pombo^2,3

¹School of Civil Engineering, Beijing Jiaotong University, Beijing, China
²Institute of Railway Research, School of Computing and Engineering, University of Huddersfield, Huddersfield, UK
³IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal

doi:10.4203/ccc.7.6.9

B. Hou, Y. Zhu, D. Wang, J. Pombo, "Research on Dynamic Performance of No.18 Turnout of Passenger Dedicated Line at 400 km/h", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 6.9, 2024, doi:10.4203/ccc.7.6.9

Keywords: high-speed railway, turnout, dynamic response, rigid-flexible coupling, wheel-rail interaction, contrastive analysis.

Abstract

Currently, among the high-speed turnouts laid in China, the self-developed passenger dedicated line series has laid 8000 groups, accounting for more than 60 %. The research and development of high-speed EMUs with a speed of 400 km / h has been fully carried out, but there is no high-speed turnout suitable for this speed standard. Addressing the gap, this paper focuses on No. 18 turnout of passenger dedicated line and establishes a rigid-flexible coupling dynamics model for the vehicle-turnout system to study the dynamic performance of the train crossing the turnout under operation conditions of 400 km/h. The dynamic performance of the turnout system is evaluated from wheel-rail interaction, safety indicators and stability indicators. Significant fluctuations are observed in wheel-rail interaction at the switch area and frog area during the transition over the switch rails and point rails, but all remain within safe limits. The trend in safety indicators is similar to that of vertical and lateral wheel-rail forces. All stability indicators meet the requirements. As train speeds increase, the vertical forces during straight and lateral crossing of the turnout noticeably intensify.

download the full-text of this paper (PDF, 12 pages, 834 Kb)

go to the previous paper
go to the next paper
return to the table of contents
return to the volume description

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 7 PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 6.9 Research on Dynamic Performance of No.18 Turnout of Passenger Dedicated Line at 400 km/h B. Hou¹, Y. Zhu¹, D. Wang¹ and J. Pombo^2,3 ¹School of Civil Engineering, Beijing Jiaotong University, Beijing, China ²Institute of Railway Research, School of Computing and Engineering, University of Huddersfield, Huddersfield, UK ³IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal doi:10.4203/ccc.7.6.9 Full Bibliographic Reference for this paper B. Hou, Y. Zhu, D. Wang, J. Pombo, "Research on Dynamic Performance of No.18 Turnout of Passenger Dedicated Line at 400 km/h", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 6.9, 2024, doi:10.4203/ccc.7.6.9 Keywords: high-speed railway, turnout, dynamic response, rigid-flexible coupling, wheel-rail interaction, contrastive analysis. Abstract Currently, among the high-speed turnouts laid in China, the self-developed passenger dedicated line series has laid 8000 groups, accounting for more than 60 %. The research and development of high-speed EMUs with a speed of 400 km / h has been fully carried out, but there is no high-speed turnout suitable for this speed standard. Addressing the gap, this paper focuses on No. 18 turnout of passenger dedicated line and establishes a rigid-flexible coupling dynamics model for the vehicle-turnout system to study the dynamic performance of the train crossing the turnout under operation conditions of 400 km/h. The dynamic performance of the turnout system is evaluated from wheel-rail interaction, safety indicators and stability indicators. Significant fluctuations are observed in wheel-rail interaction at the switch area and frog area during the transition over the switch rails and point rails, but all remain within safe limits. The trend in safety indicators is similar to that of vertical and lateral wheel-rail forces. All stability indicators meet the requirements. As train speeds increase, the vertical forces during straight and lateral crossing of the turnout noticeably intensify. download the full-text of this paper (PDF, 12 pages, 834 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
Back to top	©Civil-Comp Limited 2023 - terms & conditions