Research on Anti-overturning Device of Urban Rail Transit Trains
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 8
Abstract
Objective During the operation of urban rail transit trains, incidents such as collisions, derailments and overturning may occur. It is essential to study the dynamic behavior of trains and the technology to prevent overturning under these conditions. Method Combining the actual vehicle windshield structure and vehicle dynamic envelope during operation, a scheme is proposed to install safety belt ropes as an inter-vehicle anti-overturning device, and the structure and interface position of the device are explained elaborately. A corresponding dynamics simulation model is established based on the dynamics parameters of urban rail transit trains. Considering the actual conditions of vehicle overturning scenarios, dynamics simulation analysis is conducted for trains with and without anti-overturning device, and the anti-overturning device is set up at appropriate positions. The effectiveness of the anti-overturning device is verified through dynamics simulation software, and the static strength of the anti-overturning device mounting seat is checked by calculation. Result & Conclusion The safety belt rope anti-overturning device installed between vehicles can effectively reduce vehicle rolling angle under overturning forces, preventing the carbody from overturning due to the excessive rolling angles, thereby meeting design requirements. Under maximum tensile force action, the static strength of the safety belt rope anti-overturning device mounting seat does not exceed allowable stress, and its structural strength meets the requirements specified in relevant standards.
Authors and Affiliations
Benhuai LI, Kang WANG
Keywords
Related Articles
- EP ID EP742724
- DOI 10.16037/j.1007-869x.2024.08.053
- Views 15
- Downloads 0
Research on the Impact of Metro Station Illuminance on Passengers′ Emotion and Visual Cognition
Objective Proper illuminance environment plays an important role in improving the service level of metro stations, ensuring the safety of passenger evacuation and promoting the sustainable development of public transport...
A Brief Analysis of Karst Survey Mode for Urban Rail Transit Projects in Mountainous City
Objective In the geological survey for Guiyang urban rail transit projects, karst is a common unfavorable geological condition and also the top geological issue to be confronted. However, the current survey mode of karst...
Automatic Turn-back Scheme for City Railway Intervals Based on CTCS2+ATO Signaling System
［Objective］ When there is a malfunction or temporary operation schedule adjustment under public transit operational scenarios，the train turn-back in intervals is required for city railways using the CTCS2+ATO (Chinese...
Layout Design of Passive Balise in Platform Trackside under CBTC System of Urban Rail Transit
[Objective] The number and installation location of balises directly affect the line safety, operation efficiency, and project cost of urban rail transit. Therefore, it is necessary to study the design scheme of the bali...
Application of Grouting Method for Underground Excavation Construction of Urban Rail Transit Connecting Passage in Water-rich Sandy Cobble Stratum
Objective Connecting Passage 1 in the interval of Jiujiang North Station and Longqiao Road Station of Chengdu Metro Line 19 Phase II is located in water-rich sandy cobble stratum. Limited by the location of the surroundi...