Load Characteristics of B-type Metro Vehicle Bogie Frame
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 7
Abstract
Objective The international standards adopted in metro vehicle design and verification in China do not fully align with the actual vehicle operating conditions, resulting in the phenomenon of fatigue cracks in some metro vehicle bogie frames before reaching the specified service mileage. It is therefore necessary to study the load characteristics of metro vehicle bogie frames under actual operating conditions. Method Based on long-term tracking test data of B-type metro vehicles, a combination of statistical calculation and STFT (short-time Fourier transform) analysis is used to study the variation law of bogie frame loads from three aspects of line condition, vehicle operation state and passenger load. Result & Conclusion The main load of the bogie frame is highly correlated with line conditions, while local load of the frame are closely related to the vehicle operation state. There is a significant negative linear correlation between damper load and passenger load, while other bogie frame loads, except for lateral rolling loads, show a positive linear correlation with passenger load.
Authors and Affiliations
Yuguang WANG, Wenjing WANG, Shuang LI, Guangxue YANG
Keywords
Related Articles
- EP ID EP742619
- DOI 10.16037/j.1007-869x.2024.07.035
- Views 18
- Downloads 0
Evaluation of Train Holding Strategy Based on Passenger Service Level and Safety in Urban Rail Transit
[Objective] Holding train is a train operation scheme often used in urban rail transit under the condition of long initial delay. In order to evaluate the rationality of the scheme, it is necessary to build an evaluation...
Research on Upgrade and Transformation of Centralized Signal Control Equipment in Main Substation of Urban Rail Transit
[Objective] At present, the signal equipment in stations of Shanghai Metro Line 7 enters the aging cycle, which directly affects the stability and reliability of the power supply system of Line 7. It is necessary to upgr...
Train Speed Measurement Approach Based on Wheel-axle Creep Rate Detection
Objective In urban rail transit systems, train velocity measuring and positioning technology offers critical information to many applications such as train autonomous driving, collision avoidance, dispatching and directi...
Digital Twin Simulation System of Rail Transit Vehicle Based on Virtual Reality
[Objective] In order to improve the visualization and interactivity of the vehicle simulation system in rail transit, a digital twin simulation platform of rail transit vehicle is built based on VR (virtual reality) tech...
Cause Analysis and Countermeasure Study on Significant Deformation of Chengdu Metro Foundation pit Retaining Piles
[Objective] The complex environmental and geological conditions surrounding metro foundation pit construction can easily lead to accidents. It is necessary to analyze the reasons for significant deformation of foundation...