[图书][B] Vehicle–track coupled dynamics models

W Zhai, W Zhai - 2020 - Springer
Theoretical model is the base for the study of vehicle–track coupled dynamics problems. In
this chapter, the principle and methodology for modeling of vehicle–track coupled systems …

A critical review on the vertical stiffness irregularity of railway ballasted track

C Shi, Y Zhou, L Xu, X Zhang, Y Guo - Construction and Building Materials, 2023 - Elsevier
The dynamic performance of a railway track subjected to moving trains depends strongly on
track support conditions. In reality, even for the well-constructed and well-maintained tracks …

[HTML][HTML] A probabilistic model for track random irregularities in vehicle/track coupled dynamics

L Xu, W Zhai, J Gao - Applied Mathematical Modelling, 2017 - Elsevier
Track irregularities generally viewed as weak stationary random processes are perhaps the
most important excitations to the vehicle/track coupled system. To better clarify the random …

[HTML][HTML] A three-dimensional dynamic model for train-track interactions

L Xu, W Zhai - Applied Mathematical Modelling, 2019 - Elsevier
This paper develops a novel three-dimensional (3-D) train-track interaction model, where
the train is modelled as a group of multi-rigid-body vehicles connected by coupler and gear …

Stochastic analysis model for vehicle-track coupled systems subject to earthquakes and track random irregularities

L Xu, W Zhai - Journal of Sound and Vibration, 2017 - Elsevier
This paper devotes to develop a computational model for stochastic analysis and reliability
assessment of vehicle-track systems subject to earthquakes and track random irregularities …

[HTML][HTML] A stochastic dynamic model of train-track-bridge coupled system based on probability density evolution method

Z Yu, J Mao - Applied Mathematical Modelling, 2018 - Elsevier
An innovative stochastic dynamic model of a 3D train-track-bridge coupled system (TTBS)
with refined wheel/rail interaction is established for a high-speed railway based on the …

[HTML][HTML] Extreme-oriented sensitivity analysis using sparse polynomial chaos expansion. Application to train–track–bridge systems

Y Shang, M Nogal, R Teixeira, ARRM Wolfert - Reliability Engineering & …, 2024 - Elsevier
The use of sensitivity analysis is essential in model development for the purposes of
calibration, verification, factor prioritization, and mechanism reduction. While most …

Matrix coupled model for the vehicle–track interaction analysis featured to the railway crossing

L Xu, X Liu - Mechanical Systems and Signal Processing, 2021 - Elsevier
This paper presents a matrix coupled model for the vehicle–track interaction analysis with
the crossing panel taken into account. In this model, the wheel–rail contact is assumed to be …

Uncertainty and sensitivity analysis for train-ballasted track–bridge system

L Xin, X Li, Y Zhu, M Liu - Vehicle System Dynamics, 2020 - Taylor & Francis
This paper is devoted to present an integrated uncertainty and sensitivity procedure for use
in performance assessments for train–bridge interactions. Firstly, a train-ballasted track …

[HTML][HTML] A coupled model for train-track-bridge stochastic analysis with consideration of spatial variation and temporal evolution

L Xu, W Zhai, Z Li - Applied Mathematical Modelling, 2018 - Elsevier
Due to random characteristics of system parameters and excitations, the dynamic
assessment and prediction for the train-track-bridge interaction systems become rather …