Comprehensive Evaluation Method and Practice of Equipment Health Grade on Signaling System Service Life Prolonging Requirements
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 10
Abstract
Objective Evaluation methods for conventional equipment health grade tend to be one-sided and limited in scope. There is a need to develop an evaluation method tailored to the stringent safety demands of signaling systems. The goal is to control the full lifecycle costs, extend the system longevity, and address the general pain point of financial constraints faced by most urban metro constructions at present. Method Starting with several conventional equipment health grade evaluation methods, a comprehensive evaluation model is constructed. The equipment historical performance is evaluated by annual average repair rate data, the equipment service life is evaluated by comparing the equipment designed theoretical lifespan with actual online service time, and current equipment conditions by field survey of actual working conditions and laboratory sampling test results. By integrating these multi-dimensional data points, a comprehensive evaluation method for signaling system safety equipment is developed. Result & Conclusion The practical application of this evaluation method, supported by data statistics and analysis, produces concrete evaluation conclusions and corresponding maintenance recommendations. This validates the feasibility of the comprehensive equipment health grade evaluation method. At the same time, the application of this method enables an in-depth inspection of signaling systems based on service life prolonging requirements, facilitates the formulation of targeted preventive maintenance measures, and proposes plans for future improvements in digitalization and intelligent technology.
Authors and Affiliations
Qinghua JI, Hui ZHAO
Keywords
Related Articles
- EP ID EP749257
- DOI 10.16037/j.1007-869x.2024.10.054
- Views 62
- Downloads 0
Experimental Investigation on Grouting Repair in Operational Shield Tunnels
Objective After a significant cross-sectional deformation of shield tunnel structure, using internal tension steel ring reinforcement and the like will incur substantial material and labor costs. Improving the stress con...
Pantograph-Catenary Relation of Urban Rail Transit Lines under Catenary Iced Condition
［Objective］ Under the condition of ice forming on catenary surface (hereinafter referred to as ′iced condition′), the normal current collection of train pantograph is disrupted. In severe cases, arcing may occur betwee...
Optimization of Friction Stir Welding Process Equipment Based on TRIZ Theory
［Objective］ Friction stir welding is a key welding technology for next-generation. To address welding quality defects associated with friction stir welding, it is necessary to conduct an in-depth study of its welding p...
Grid Continuous Positioning Technology for Urban Rail Transit CBTC Wireless Environment Monitoring System Based on Inertial Navigation
Objective The current secondary positioning system of urban rail transit train beacons has a positioning accuracy of 300 meters, failing to meet the high-precision positioning requirements of wireless environment monitor...
Control Circuit Optimization for High-speed Circuit Breaker in Traction System of Jinan Metro Line 3
[Objective] In the early operation stage of Jinan Metro Line 3, multiple sporadic high-speed circuit breaker closing failures are reported. To improve the reliability of train operation, it is necessary to optimize the h...