Design and Experimental Verification of Urban Rail Transit Flexible Formation Train Reconnection Functionality
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 8
Abstract
Objective During off-peak hours, large train departure interval is adopted for off-peak urban rail transit passenger flow, however, it is commonly faced with issues of low seat occupancy rates and high energy consumption. To enhance the operational service level of urban rail transit, it is necessary to conduct in-depth research on flexible formation train reconnection functionality. Method Based on the development situation of flexible train operation mode in urban rail transit in China, referring to some concepts from high-speed railway EMU (electric multiple units), the main design contents of flexible formation train reconnection are elaborated from aspects of coupler reconnection, vehicle hard-wired circuit reconnection, TCMS (train control and monitoring system) reconnection, and train signal interface requirements. Additionally, the primary verification contents of flexible train formation are introduced from two dimensions: vehicle reconnection form tests and vehicle reconnection routine tests. Result & Conclusion The operation plan of 3-car or 3+3 car train formations on Shanghai Rail Transit Line 16, tailored to peak and off-peak passenger flow demands, can achieve train coupling or decoupling within 3 minutes, which demonstrates the feasibility of the proposed plan.
Authors and Affiliations
Chengpeng CAO, Haifeng CAO, Zhenliang FU, Chunwei CAO, Mingyuan HAO
Study on Fatigue Life Reliability of Vehicle Bogie Arm Positioning Node
Objective Based on the virtual simulation fatigue test technology, fatigue life analysis and reliability evaluation of the bogie arm positioning node of a certain type of vehicle are carried out to improve the vehicle st...
Effect Analysis of Track Vibration Reduction Measures on Viaduct Environmental Vibration Induced by Vehicle Operation
[Objective] When a train running on the viaduct track, the rail vibration caused by the vehicle-track interaction will be transmitted to the bridge, piers, and pile foundations through the track structure, thereby trig...
Reliability Analysis of Collision Energy Absorption for Anti-climber Devices Based on Improved Sum of Sine Surrogate Model
Objective To reasonably evaluate the energy absorption reliability index of anti-climber devices, a reliability analysis method based on ISSSM (improved sinusoidal and surrogate model) is proposed. Method Firstly, a fini...
Application of Digital Current Selective Tripping Protection in Subway Medium Voltage Ring Network Power Supply
Objective Compared with traditional protection mechanism of medium-voltage ring network in power supply system, digital current selective tripping protection has quicker motion performance and better selectivity. However...
Research on Switch Machine Fault Prediction Based on CHMM
Objective As an important component of urban rail transit signal equipment, once the switch machine malfunctions, the operation will be seriously affected. Monitoring and predicting its health status is particularly impo...