Dynamic response of vehicle-track coupling system with an insulated rail joint [PDF]
, 2013 The dynamic behavior of vehicle and track systems is studied in the presence of an insulated rail joint through a two-dimensional vehicle-track coupling model.
Grossoni, Ilaria +3 more
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Impact of wheel shape on the vertical damage of cast crossing panels in turnouts [PDF]
, 2015 Impact forces generated in the load transfer area of railway crossing panels lead to a range of degradation modes from wear and fatigue of the contacting materials, fatigue of supporting components to ballast/subgrade deterioration.
Grossoni, Ilaria +3 more
core +3 more sources
Subway Embedded Track Geometric Irregularity Safety Limits
Chinese Journal of Mechanical Engineering, 2021 A coupling dynamic model of a subway train and an embedded track is established to study the safety limits of track irregularities. The simulated vehicle system was a 74-degrees of freedom multi-rigid body model, and the rail was a Timoshenko beam.
Yuxiang Zhang +3 more
doaj +1 more source
Analysis of Influencing Mechanism of Subgrade Frost Heave on Vehicle-Track Dynamic System
Applied Sciences, 2020 Uneven subgrade frost heave has been a severe problem for the operation of high-speed railways in cold regions. In order to reveal the influencing mechanism of frost heave on the vehicle-track system, a novel FEM (finite element method) model based on an
Liang Gao +3 more
doaj +1 more source
The Interaction Between Railway Vehicle Dynamics And Track Lateral Alignment [PDF]
This thesis examines the effect of vehicle dynamics on lateral deterioration of the track alignment. As rail traffic runs along a route, the forces imposed upon the track cause the ballast to settle, and hence the track geometry deteriorates.
Gong, Cencen
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Applied Sciences, 2018 In a fixed-end arch railway bridge restraining the displacement and rotation at the support to constrain the longitudinal deformation of the superstructure, vertical deformation occurs according to temperature change.
Sung Ho Hwang +3 more
doaj +1 more source
MECHANICAL INTERACTION OF THE RAIL TRANSPORT CAR AND JOINT IRREGULARITY [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2021 Mechanical models of a transport system “carriage - track” while crossing a joint irregularity are proposed. An investigation was conducted on the peculiarities of static, shock and dynamic interaction between the four-axle car and the track, considering
Vladimir SHPACHUK +3 more
doaj +1 more source
A Three-Stage Prediction Method for Track Displacement During Shield Tunneling
Urban Rail Transit, 2023 Track displacement is an important factor of track irregularity. Existing researches related with track displacement prediction generally ignore the influence from underground construction engineering such as shield tunneling, resulting in inaccurate ...
Lei Tan +5 more
doaj +1 more source
Evaluation of Sperling’s Index in Passenger and Freight Trains Under Different Speeds and Track Irregularities [PDF]
International Journal of Advanced Design and Manufacturing Technology, 2022 The two factors of track irregularity and train speed affect the dynamic behavior of rail vehicles and can lead to an increase in dynamic forces, a decrease in ride comfort, and derailment in some cases.
sajjad sattari +4 more
doaj +1 more source
Analysis of the contour structural irregularity of skin lesions using wavelet decomposition [PDF]
, 2013 The boundary irregularity of skin lesions is of clinical significance for the early detection of malignant melanomas and to distinguish them from other lesions such as benign moles. The structural components of the contour are of particular importance.
Ma, Li, Staunton, Richard C.
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