Impact of Wheel Wear on Dynamics Performance of CR200J EMU Trailer and Control Cars
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 5
Abstract
Objective In response to stability alarm faults occurring in CR200J EMU trailer and control cars in certain sections, it is necessary to analyze the factors affecting the dynamics performance to analyze the causes and address the issues. Method Tracked measurements are conducted on the wheel wear status of a set of CR200J EMU trailer and control cars. The actual rail profiles along the operating routes of vehicles are measured to identify the development patterns of wheel wear. Through SIMPACK software simulation, and combined with real wheel-rail matching conditions, the impact of wheel wear on vehicle dynamics performance is analyzed. Result & Conclusion The wheel wear of CR200J EMU trailer and control cars mainly concentrates at the rolling circle. As wheel wear increases, changes occur in the wheel-rail contact relationship, leading to a linear increase in wheel equivalent conicity, and noticeable changes in lateral stability indicators of the vehicles. Some sections of the measured track profiles exhibit abrupt changes, causing lateral harmonic motion in the bogies. Finally, based on the patterns and characteristics of wheel wear, improvement suggestions are proposed.
Authors and Affiliations
Li XU, Chen YANG, Zhonghua GU
Keywords
Related Articles
- EP ID EP735632
- DOI 10.16037/j.1007-869x.2024.05.029
- Views 10
- Downloads 0
Integrated Prediction Model for Urban Rail Transit Station Feeder Passenger Flow
[Objective] The rational coordination of feeder facilities is crucial for maximizing the functionality of urban rail transit. To quantitatively describe the distribution of passenger flows originating from urban rail tra...
Design of Fully Automated Depot Train Inspection Operation Management System Architecture Based on Digital Twin
[Objective] Digital twin technology is the booster for many industries to embark on the path of intelligence, information, and digitalization. To promote the digital development of urban rail transit vehicle bases, a ful...
Urban Rail Transit Engineering Comprehensive Inspection Vehicle Based on Binocular Vision Positioning and Synchronous Triggering
Objective Most urban rail transit tunnel and track work inspection still adopt conventional manual inspection method, which calls for effective improvement on inspection efficiency and accuracy. Method A comprehensive in...
Train In-station Coupling and Decoupling Scheme for Shanghai Metro Line 16
Objective Shanghai Metro Line 16 adopts a flexible marshalling operation mode, but it takes a long time for the train to complete the coupling and decoupling process, leading to great difficulty in train operation organi...
Calculation and Analysis of Critical Supporting Pressure for Shield Tunnel Excavation Face in Water-rich Sandy Stratum under Seepage Condition
[Objective] Water-rich sandy stratum is a common geological formation encountered in metro shield tunnel excavation. Seepage may occur under the influence of water pressure differences inside and outside the soil chamber...