Door Howling Cause Analysis and Countermeasures of Urban Rail Transit Train Passing through Tunnels
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 8
Abstract
Objective When the urban rail transit train with designed speed of 120 km/h passes through a tunnel at high speed, rear door howling problem of the tail car often occurs, seriously affecting passenger ride comfort. Thus the cause of this problem is studied in depth, and countermeasures are proposed. Method Taking the trains with serious howling in Zhengzhou-Xuchang City Railway as the research project, the causes of train door howling problem are analyzed from the aspects of door howling mechanism, vehicle internal and external pressure difference, and problems with the door itself. Aiming at the cause of door howling, targeted optimization measures are formulated from aspects of the blocking ratio between train and tunnel, the structure of door sealing rubber strip, and the compression amount of sealing rubber strip and so on. Stamping test is carried out by mounting doors with/without optimization on the same air-tight test bench. Result & Conclusion Door stamping test shows that under the same air intake volume, the maximum vehicle interior pressure increases from 1 400 Pa to 2 200 Pa after door optimization, and the door sealing performance is improved significantly, completely solving the problem of door howling.
Authors and Affiliations
Kainan MAO, Runtian LIU, Zhe WANG
Keywords
Related Articles
- EP ID EP742727
- DOI 10.16037/j.1007-869x.2024.08.056
- Views 9
- Downloads 0
Application of New Electricity Saving Technology in Urban Rail Transit Depot
[Objective] The electricity consumption in vehicle depot accounts for a large proportion of the total in urban rail transit. In order to reduce the depot electricity consumption, it is necessary to do research on the app...
Monitoring and Analysis of the Adjacent Metro Shield Tunnel Deformation Caused by Simultaneous Excavation of Parallel Double Foundation Pits
[Objective] Simultaneous excavation of double foundation pits will affect the adjacent metro shield tunnel. In order to ensure the stability of the adjacent shield tunnel, it is necessary to monitor and analyze the defor...
Prediction of Land Subsidence Caused by Shield Tunnel Construction with Joint CNN-LSTM Neural Network
Objective Metro shield tunnel construction may cause surrounding land subsidence, affecting the surrounding environment. Traditional land subsidence prediction models are difficult to comprehensively consider the influen...
Flood Prevention System Construction and Innovative Equipment Application in Metro Engineering
Objective In recent years, extreme rainfall weather frequently causes urban flooding, leading to many cases of metro engineering project water disasters, significant economic losses and personnel casualties. It is essent...
Performance Evaluation of Rail Transit Station Land Use Based on Passenger Throughput-A Case Study of Shanghai
Objective Shanghai Master Plan (2017-2035) evaluates land use performance using the index of land use area for construction of GDP per unit area across the city. However, since rail transit stations are more concerned wi...