Two-layer model of the railway track: Analysis of the critical velocity and instability of two moving proximate masses

Z Dimitrovová - International Journal of Mechanical Sciences, 2022 - Elsevier
In this paper, the widely used two-layer model of the railway track is analysed with focus on
the critical velocity and instability of moving masses. The model is assumed to be infinite …

[HTML][HTML] Modeling and Characterization of Complex Dynamical Properties of Railway Ballast

X Hua, W Zatar, X Cheng, GS Chen, Y She, X Xu… - Applied Sciences, 2024 - mdpi.com
The nonlinear mechanical properties of ballasted tracks along railways result in complex
dynamics of the vehicle–track systems. Employing localized characterization of ballast and a …

On the critical velocity of moving force and instability of moving mass in layered railway track models by semianalytical approaches

Z Dimitrovová - Vibration, 2023 - mdpi.com
This article presents a comparison between layered models of a railway track. All analyses
are based on semianalytical approaches to show how powerful they can be. Results are …

Evaluating the dynamic behavior of railway-bridge transition zone: numerical and field measurements

H Heydari - Canadian Journal of Civil Engineering, 2023 - cdnsciencepub.com
Short-span bridges are one of the most frequent infrastructures along railway tracks where
railway track stiffness suddenly changes. The sudden variation in the vertical stiffness of …

Instability of vibrations of mass (es) moving uniformly on a two-layer track model: Parameters leading to irregular cases and associated implications for railway design

Z Dimitrovová - Applied Sciences, 2023 - mdpi.com
Ballasted railway tracks can be modeled using reduced/simplified models composed of
several layers of discrete components. This paper deals with the two-layer model, which is …

[HTML][HTML] Mathematical Modeling of the Floating Sleeper Phenomenon Supported by Field Measurements

M Uranjek, D Imamović, I Peruš - Mathematics, 2024 - mdpi.com
This article aims to provide an accurate mathematical model with the minimum number of
degrees of freedom for describing the floating sleeper phenomenon. This was accomplished …

Simulation analysis of the influence of changes in track parameters on running safety of a rail vehicle

B Sowiński, A Stelmach, A Chudzikiewicz - Energies, 2021 - mdpi.com
The contemporary striving for increased speed in rail transport, with simultaneous
requirements in terms of travel comfort, makes the safety of rail vehicles one of the priorities …

Semi-Analytical Approach and Green's Function Method: A Comparison in the Analysis of the Interaction of a Moving Mass on an Infinite Beam on a Three-Layer …

Z Dimitrovová, T Mazilu - Materials, 2024 - mdpi.com
In this paper, the interaction of a mass moving uniformly on an infinite beam on a three-layer
viscoelastic foundation is analyzed with the objective of determining the lowest velocity at …

The Impact of Construction Structure Material on the Dynamic Response of Railway Bridges Under Passing of High-speed Trains

AM Abd Al-Mohsen, HH Muteb - IOP Conference Series: Earth …, 2024 - iopscience.iop.org
With the development of life and its requirements increasing, it has become necessary to
find means that reduce the time to meet them, and one of these means is high-speed trains …

[PDF][PDF] Instability of a Moving Bogie: Analysis of Vibrations and Possibility of Instability in Subcritical Velocity Range

Z Dimitrovová - 2025 - preprints.org
This paper deals with the analysis of vibrations induced by a moving bogie passing through
a single-layer model of a railway track. The emphasis is placed on the possibility of unstable …