Results 1 to 10 of about 73,038 (292)

Train-Induced Vibration Monitoring of Track Slab under Long-Term Temperature Load Using Fiber-Optic Accelerometers [PDF]

open access: yesSensors, 2021
The train-induced vibration response provides a flexible solution for the real-time monitoring deformation of high-speed railway track slab in actual operation.
Jianxiang Zhang   +4 more
doaj   +2 more sources

Experimental study of the gap between track slab and cement asphalt mortar layer in CRTS I slab track [PDF]

open access: yesJournal of Modern Transportation, 2018
Gap exists in the interface of cement asphalt emulsion mortar and CRTS I track slab universally, which is more severe at four corners than other parts of the track slab.
Tao Wang   +6 more
doaj   +2 more sources

A STUDY ON THE WHEELSET/SLAB TRACK VERTICAL INTERACTION [PDF]

open access: yesFiabilitate şi Durabilitate, 2012
This paper deals with the interaction between a moving wheelset and a slab track due to the short-pitch corrugated rail. The wheelset is modeled using a free-free Timoshenko beam with attached rigid bodies as the axle boxes, wheels and brake discs.
Traian MAZILU
doaj   +2 more sources

Study on influence of cosine-shaped subgrade settlement at different positions on the deformation and interlayer contact behavior of unit slab ballastless track [PDF]

open access: yesScientific Reports
The influence of cosine-shaped subgrade settlement (CSSS) at different positions on the structure of unit slab ballastless track (USBT) of high-speed railway (HSR) is studied in this paper.
Jing Tan   +5 more
doaj   +2 more sources

Non-destructive evaluation method for track slabs damaged by impact of ice blocks detached from high-speed trains [PDF]

open access: yesScientific Reports
In winter snowy or rainy weather, the phenomenon of icing under rolling stock during high-speed operation is significantly severe, posing a potential risk of detachment and impact on track structures due to the presence of ice blocks with substantial ...
Xiaolin Song   +3 more
doaj   +2 more sources

Modelling of Floating-Slab Track with Discontinuous Slab [PDF]

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2006
This paper presents three different methods for modelling a track with discontinuous slab under oscillating moving loads. These are the Fourier-Repeating-unit method, the Periodic-Fourier method and the Modified-phase method. The first two methods, borrowed from the literature of periodic infinite structures, are accurate if careful consideration is ...
Hussein, M.F.M., Hunt, H.E.M.
openaire   +5 more sources

Influences of cement asphalt emulsified mortar construction on track slab geometry status [PDF]

open access: yesRailway Sciences, 2023
Purpose – The construction of cement asphalt (CA) emulsified mortar can obviously disturb the slab status after the fine adjustment. To decrease or eliminate the influence of CA mortar grouting on track slab geometry status, the effects of grouting ...
Tao Wang   +7 more
doaj   +1 more source

Random-Forest Machine Learning Approach for High-Speed Railway Track Slab Deformation Identification Using Track-Side Vibration Monitoring

open access: yesApplied Sciences, 2021
High-speed railways (HSRs) are established all over the world owing to their advantages of high speed, ride comfort, and low vibration and noise. A ballastless track slab is a crucial part of the HSR, and its working condition directly affects the safe ...
Gaoran Guo, Xuhao Cui, Bowen Du
doaj   +1 more source

Influence of temperature gradient of slab track on the dynamic responses of the train-CRTS III slab track on subgrade nonlinear coupled system

open access: yesScientific Reports, 2022
Temperature is an important load for ballastless track. However, there is little research on the system dynamic responses when a train travels on a ballastless track under the temperature gradient of ballastless track.
Qingyuan Xu   +5 more
doaj   +1 more source

Comparative Research on Vibration Characteristics of Cast-In-Place Steel-Spring-Floating Slab Track under Different Subway Line Conditions

open access: yesApplied Sciences, 2022
Purpose: Steel-spring-floating slab tracks are widely used in subway lines. It is necessary to analyze and study the vibration damping and transmission characteristics of the steel-spring-floating slab track in various frequency bands under the action of
Xudong Huang   +6 more
doaj   +1 more source

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