Safety Research on Rail Transit Safety Hosts by Integrating Markov Method and GO Method
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 12
Abstract
［Objective］ Rail transit safety hosts are the core of the train operation control system, and it is necessary to conduct safety research on the rail transit safety hosts. ［Method］ The system architectures of the 2-out-of-3 safety host and the double 2-vote-2 safety host are introduced. A quantitative calculation method for the safety hosts that combines Markov method and GO method is proposed and verified through actual example. ［Result & Conclusion］ Within the same working period, the safety of the power module decreases the fastest. So in practical applications, special attention should be paid to the safety of the power module in the safety hosts. In the initial working period, the security performance of the double 2-vote-2 safety host is higher than that of the 2-out-of-3 safety host, but the difference in security performance between the two safety hosts is not significant; with the increase of working time, the security performance of both safety hosts decreases. Adoption of the proposed Markov-GO joint model can achieve safety quantitative analysis of the safety hosts.
Authors and Affiliations
Hongliang PAN, Chenglong YU, Di LI, Hao WANG, Minda SUN
Keywords
Related Articles
- EP ID EP752715
- DOI 10.16037/j.1007-869x.2024.12.010
- Views 13
- Downloads 0
Analysis of Cracking Causes at Grounding Terminals of Bogie Axle-end and Resolution Measures
[Objective] Due to continuous changes in the operating conditions of metro lines, abnormal vibrations between wheel and rail s occasionally occur, leading to fractures in the suspension components at the bogie axle-end a...
Structural Renovation Design Study for Shanghai Rail Transit Line 3/4 Joint-rail Project at Baoshan Road Station
[Objective] To enhance train throughput capacity and reduce safety risk at Baoshan Road Station in Shanghai rail transit, a track joint-rail renovation is necessary, requiring concurrent reinforcement of station structur...
Reliability Analysis of Tram Electro-mechanical Braking System Based on Fuzzy Fault Tree
Objective The electro-mechanical braking system architecture of tram is different from that of the traditional braking system, so it is necessary to analyze the system safety and make targeted improvement to its weak lin...
Influence of Air Spring Components on Maglev Train System
Objective To study the influence of air springs on maglev train system as one of the components, and solve the problem of deteriorated suspension performance in maglev train system due to the influence of air springs, th...
Fault Diagnosis Method for High-speed Train Gearbox Bearing Based on Improved VMD and Temperature-vibration Feature Fusion
Objective Existing methods for high-speed train gearbox bearing monitoring and diagnosis in China often rely solely on temperature or vibration data. Rely solely on a single temperature data point may result in missing e...