Study on Delayed Lateral Displacement of Elastic Wheels in a Certain Type of Tram
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 5
Abstract
Objective The delayed lateral displacement of elastic wheels occurs in a certain type of tram during servive, significantly affecting the safe operation and maintenance of the vehicle. Method Experimental research is conducted using methods such as quality inspection of elastic wheels, train mainline testing, and simulation calculations to analyze the causes of delayed lateral displacement of wheels in depth. Result & Conclusion The analysis results indicate that the inherent product performance of elastic wheels meets the standards and service requirements, with high stability and reliability. The vibration level of trains in small curve sections is higher than that in straight sections, with a root mean square value of vertical vibration reaching 2.77g. Moreover, there is a vibration dominant frequency of 300 to 450 Hz in curve sections, matching the natural modal frequency of the elastic wheels at 340.37 Hz, resulting in coupling resonance between the wheels and the rai in this section. Therefore, it is recommended that in the operation and maintenance of the wheel-rail railway lubrication operations should be strengthened on one hand and the inspection frequency of rail corrugation in small curve sections be increased on the other hand to reduce the wheel-rail friction coefficient and improve the operating environment for wheel maintenance.
Authors and Affiliations
Riyi WANG, Cheng ZHU, Jiankun XIE, Ziliang ZHAO, Hao WU, Xiaoping JIA
Keywords
Related Articles
- EP ID EP735631
- DOI 10.16037/j.1007-869x.2024.05.028
- Views 32
- Downloads 0
SIL Allocation of APM Based on MODSafe Method
Objective APM (automated people mover) has very high requirements for safety, and the existing SIL (safety integrity level) allocation method cannot meet the demand of APM projects efficiently and accurately. In order to...
Reflections on Several Digital Transformation Issues of Urban Rail Transit
Objective Urban rail transit digital transformation has become the future development trend of the industry. Different from the digital transformation of the manufacturing industry, as a large-scale operation service sys...
Application of Distributed Photovoltaic Power Generation at Urban Rail Transit Station Entrances and Exits
Objective Based on the goals of carbon peak and carbon neutrality in China and the demand for green, low-carbon and sustainable development of urban rail transit, the feasibility of applying distributed photovoltaic powe...
Application Analysis of Quantum Secure Communication Based on BB84 Protocol in Urban Rail Transit
Objective Critical information systems in URT (urban rail transit) usually use classical cryptographic algorithms for data encryption. The development of quantum information science poses a significant threat to the secu...
Disturbance Action of First Excavation on Reinforcement Effect of Later Excavation in layered Tunnels
Objective In the ultra-close layered tunnel construction, the preceding excavated tunnel can cause unpredictable damage to the surrounding rock, which will affect the smooth construction of the following tunnel and incre...