Research on Brake Disk Heat Dissipation Rib Arrangement Spacing for High-speed Railway Train
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 4
Abstract
Objective As the design speed of trains reaches 400 km/h level, the flow field environment under the train becomes more complex, highlighting the issues such as increased brake disc resistance and power consumption. It is imperative to conduct in-depth research on the optimal arrangement spacing of train brake disc heat dissipation ribs at this speed level. Method Using a cylindrical heat dissipation rib structure as the basis, a model is established through finite element simulation, inputting relevant parameter values. Four calculation conditions are set for the center-to-center distance (dc) circumferentially between adjacent heat dissipation ribs, and five calculation conditions are set radially for the distance (dr) between adjacent heat dissipation ribs. Various dc and dr values are calculated respectively for their impact on brake disc temperature rise, resistance, and heat dissipation power. It is aimed to determine recommended values for both dc and dr. Result & Conclusion When dr equals 40 mm (i.e. the ratio of the distance between the heat dissipation ribs and the brake disc edge to the brake disc diameter is 0.75), the brake disc temperature rise reaches the lowest value, indicating the optimal performance of brake disc. For heat dissipation ribs with a diameter equal to half of dc, the brake disc demonstrates the best overall performance.
Authors and Affiliations
Yanli YAN, Haihao GU, Chun TIAN, Gengwei ZHAI
Keywords
Related Articles
- EP ID EP734165
- DOI 10.16037/j.1007-869x.2024.04.019
- Views 7
- Downloads 0
Research on Urban Rail Transit Service Quality Evaluation Based on Passenger Demand
Objective Evaluation of urban rail transit service quality based on passenger demand not only promotes service quality improvement and enhances passenger satisfaction with travel, but also contributes to economic and soc...
Impact of Large-span Civil Defense Tunnel Project Under-passing Construction on Structural Stability of Existing Metro Tunnel Intervals
Objective To analyze the construction impact of new large-span civil defense tunnel on metro tunnel interval structural stability when under-passing existing metro line with a small clear distance, it is necessary to con...
Characteristics of Passenger Stagnation Behavior Spectrum Based on Monitoring Video Data at Ticket Gate in Urban Rail Transit Stations
[Objective] To scientifically set up the ticket gate, improve its actual passing capacity, and reduce the congestion risk caused by abnormal stagnation of the passengers, it is necessary to study the characteristics of p...
TBM Selection Optimization and Tunneling Parameter Control in Complex Offshore Strata for Urban Rail Transit
[Objective] In order to improve the formation adaptability of the tunnel boring machine (shorten as TBM) and solve the problem of TBM selection for the west extension section of Qingdao Metro Line 2 (hereinafter referred...
Metro Train Braking Simulation Control System Based on EP2002 Braking System
[Objective] To address the issue of the highly integrated internal structure of the EP2002 valve system, which hinders internal fault injection, a metro train braking simulation control system that accurately reflects th...