Mechanism of high-speed train carbody shaking due to degradation of wheel-rail contact geometry

C Chang, X Ding, L Ling, F Li, T Liu… - International Journal of …, 2023 - Taylor & Francis
The carbody shaking phenomenon (CSP) can greatly reduce the ride comfort of high-speed
trains. To investigate the abnormal vibration feature and causes of the CSP, extensive field …

Experimental and mathematical study of flexible–rigid rail vehicle riding comfort and safety

SK Sharma, RC Sharma, Y Choi, J Lee - Applied Sciences, 2023 - mdpi.com
This paper analyses the dynamic behavior of a rail vehicle using experimental and
simulation analysis on a multi-rigid–flex body model. The mathematical models are …

Dynamic characteristics of underframe semi-active inerter-based suspended device for high-speed train based on LQR control

Y Wang, HX Li, HD Meng, Y Wang - Bulletin of the Polish Academy …, 2022 - yadda.icm.edu.pl
The underframe passive inerter-based suspended device, based on the inerter-spring-
damper vibration attenuation structure, could improve the dynamic performance of the train …

An innovative stepwise time-domain fatigue methodology to integrate damage tolerance into system dynamics

F Guo, S Wu, J Liu, X Wu, W Zhang - Vehicle System Dynamics, 2023 - Taylor & Francis
With the development of vehicle system dynamics, the multi-body system simulation has
been proven as an effective and cost-saving way to obtain fatigue loads of high-speed …

Fatigue failure analysis and life prediction of welded aluminum alloy frames suspended from high-speed EMU

J Jing, C Li, B Peng, S Li, Z Wen, X Wu - Engineering Failure Analysis, 2024 - Elsevier
Aiming to solve the failure problem of welded frame suspended under high-speed EMU, a
long-term tracking test was carried out. The modal resonance of 8–20 Hz is the main cause …

Research on resonance mechanism of articulated train car body based on modal vibration extraction method

G Liu, D Gong, J Zhou - Journal of Vibration and Control, 2024 - journals.sagepub.com
The physical vibration of railway train car body is the superposition of various modal
vibrations of the car body. In this study, a modal vibration extraction method (MVEM) based …

Study on the influence of car-body flexibility on passengers' ride comfort

H Xu, X Xiao, X Liu, X Jin - Vehicle System Dynamics, 2024 - Taylor & Francis
A 3D rigid-flexible human-seat-vehicle-track coupling model is proposed to analyze high-
speed train ride comfort. The seated human model is built based on the multi-body dynamic …

[HTML][HTML] Study of Resonance between Bogie Hunting and Carbody Mode via Field Measurements and Dynamic Simulation

S Yang, F Li, P Wu, J Gong - Sensors, 2024 - mdpi.com
By addressing the phenomenon of carbody abnormal vibrations in the field, the acceleration
of the carbody and bogie was measured using accelerometers, and the diamond mode of …

Formulating and Analysing the Effect of Suspension Parameters on Critical Speeds for Various DOFs in Rail Vehicle

PN Vishwakarma, P Mishra, SK Sharma… - … Conference on Future …, 2022 - Springer
Because of the growing demand for high-speed rail vehicles and the ongoing development
of these vehicles, the comfort and safety of passengers have become key criterion for …

Vibration Environment Spectrum Compilation Method of Metro Bogie Frame End

S Wang, P Wu, Y Song, C Liu, Y Ye, F Li - Available at SSRN 4543142 - papers.ssrn.com
Vibration fatigue failure of equipment at the bogie frame end occurs from time to time, mainly
due to the lack of a suitable vibration environment spectrum during the design stage. The …