Results 51 to 60 of about 160,791 (207)
Rail Corrugation Growth on Curves [PDF]
The development of periodic irregularities with distinct wavelengths (corrugation) on the low rail of small radius curves is studied through mathematical modelling, numerical simulations, field measurements and laboratory investigations.
Torstensson, Peter
core
A deep learning framework integrated with a 2D train track bridge simulation model is developed to classify corrugation and ballast faults from vibration signals using time frequency analysis. The method achieves high accuracy and supports predictive maintenance for railway infrastructure.
Shahzor Memon +6 more
wiley +1 more source
Mechanisms and mitigation of short pitch rail corrugation
Short pitch corrugation is a (quasi-) periodic rail surface defect with shiny crests and dark valleys. It primarily occurs on tangent tracks or gentle curves with a typical wavelength in the range of 20-80 mm.
Zhang, P., Zhang, P. (author)
core +2 more sources
ABSTRACT Decarbonizing the intercity rail in sub‐Saharan Africa requires the use of energy architectures that go beyond traditional grid reliance at the expense of traction performance. This paper introduces a novel photovoltaic (PV)‐assisted hybrid traction topology for a 42 km Pretoria–Sandton rail corridor in South Africa, where between‐rail PV ...
Chinedu T. Obe, Nnamdi I. Nwulu
wiley +1 more source
The occurrence of short-wave corrugation with wavelengths of 32–44 mm on curved sections of urban express railway lines is particularly pronounced, yet the underlying initiation mechanisms have remained insufficiently understood.
Jie Zhong +4 more
doaj +1 more source
RAIL-CORRUGATION AND ITS CAUSES. (INCLUDING APPENDIX). [PDF]
n ...
openaire +2 more sources
Experimental Study on Spatial‐Position Effects of Subway Vibrations on Adjacent Tunnels
The effects of subway‐induced vibrations on surrounding structures are a critical issue in urban underground engineering, as they directly affect the structural stability and integrity of tunnels and nearby infrastructure. Existing research has mainly focused on the vibration responses of single tunnels, surrounding soils, or adjacent buildings, with ...
Liangzheng Wu +5 more
wiley +1 more source
Short-pitch rail corrugation is commonly found at curves or resilient track structures of the metro system, causing fatigue failure of key components of the train–track system.
Xiaohan Phrain Gu +3 more
doaj +1 more source
Field Performance of a New Near‐Field Rail Noise Absorber Implemented on Operational Tracks
This study details the design, numerical modelling and experimental validation of a novel near‐field rail noise absorber (NRNA) intended to mitigate railway noise at its source. The evaluation employed a comprehensive methodology that combined finite element (FE) simulations, parameters’ optimal design via physics‐informed neural network (PINN ...
Wai Kei Ao +6 more
wiley +1 more source
Influence of Asymmetric Rail Cant on Rail Corrugation in Metro Small-radius Curve Sections
[Objective] A reasonable rail cant can improve the wheel-rail matching relationship, effectively reduce wheel-rail contact pressure and mitigate wheel-rail wear.
SUN Ping +4 more
doaj +1 more source

