Research progress of high-speed wheel–rail relationship

X ** - Lubricants, 2022 - mdpi.com
The research on wheel–rail relationship includes the basic theoretical models and
corresponding numerical methods of wheel–rail in rolling contact, geometric parameter …

Dynamic behavior of railway Vehicle-Ballasted track system with unsupported sleepers based on the hybrid DEM-MBD method

J Fang, C Zhao, X Lu, W **ong, C Shi - Construction and Building Materials, 2023 - Elsevier
In order to understand dynamic effect of the unsupported sleepers on railway substructure at
the meso-macroscopic scales, this paper develops a dynamics analysis framework …

Dynamic impact of sleeper unsupported defects on the heavy haul locomotive-ballasted track coupling system

J Fang, C Zhao, C Shi, Z Zhai, C Cai - Soil Dynamics and Earthquake …, 2024 - Elsevier
In this study, a dynamics analysis framework combining the multi-body dynamics method
(MBD) and the discrete element method (DEM) capable of accounting for sleeper …

Numerical investigation on wheel-rail impact contact solutions excited by rail spalling failure

C Liu, J Xu, K Wang, T Liao, P Wang - Engineering Failure Analysis, 2022 - Elsevier
Rail spalling is a typical form of wheel-rail rolling contact fatigue (RCF), and is a difficult
problem that has always existed in railways. Once the wheel rolls across the spalling failure …

The role of 3D contact geometry in modeling dynamic wheel-rail interaction at short-wave irregularities on rail surface

B An, Y Sun, J Liu, G Tao, Y Qian, P Wang - Engineering Failure Analysis, 2023 - Elsevier
Modelling wheel-rail interaction at short-wave irregularities is an important issue under the
context of vehicle-track system dynamics for analyzing and preventing severe impact. The …

Influence of differential deterioration of random track irregularity at different wavelengths on high-speed train safety

F Tong, L Gao, B Hou, S Miao, X Cai… - International Journal of …, 2024 - Taylor & Francis
To reveal the influence of differential deterioration of random irregularity at different
wavelengths on train safety. Based on the vehicle-track coupling dynamics and the …

A new approach for solving three-dimensional elasto-plastic wheel-rail normal contact problems

J Zhao, P Fu, H Miao, Z Wen, R Chen, Q Kan - Acta Mechanica Sinica, 2023 - Springer
A new approach for solving three-dimensional elasto-plastic wheel-rail normal contact
problems is presented, which is used to obtain the normal contact pressure distribution in …

Investigation on the causes of rail corrugation in high-speed railways based on the wheel–rail transient rolling contact model and wear model

B Wu, J Pan, W Hu, Y Hu, H Cong, L Wang… - Vehicle System …, 2024 - Taylor & Francis
This work investigated the causes of rail corrugation in a high-speed railway. A three-
dimensional (3D) finite element (FE) model of the vehicle-track system (VTS) and a rail wear …

Experimental and numerical analysis of the static‒dynamic characteristics and vibration fatigue failure mechanism of railway fastening clips

Z Yan, J Shi, D Ma, J **ao, L Sun - International Journal of Rail …, 2024 - Taylor & Francis
To study the static‒dynamic characteristics and vibration fatigue failure mechanism of
railway fastening clips, the modal characteristics of the clip in free and installed states are …

Mechanical behavior and performance evolution of railway ballast track under dynamic stabiliser based on the hybrid MBD-DEM simulation

J Fang, C Zhao, C Cai, C Chen, C Shi, M Lin - Transportation Geotechnics, 2024 - Elsevier
The uncertainty in local structure and time-variable compaction of ballast aggregates poses
challenges in selecting suitable stabilization methods and parameters for ballast tracks in …