Results 21 to 30 of about 9,930 (290)

Estimation of Lateral Track Irregularity Through Kalman Filtering Techniques [PDF]

open access: yesIEEE Access, 2021
The aim of this work is to develop a model-based methodology for monitoring lateral track irregularities based on the use of inertial sensors mounted on an in-service train. To this end, a gyroscope is used to measure the wheelset yaw angular velocity and two accelerometers are used to measure lateral acceleration of the wheelset and the bogie frame ...
Sergio Muñoz   +3 more
openaire   +6 more sources

Investigation of Track Gauge and Alignment Parameters of Ballasted Railway Tracks Based on Real Measurements Using Signal Processing Techniques

open access: yesInfrastructures, 2023
This paper deals with the time-frequency characteristic analysis for track geometry irregularities using field data recorded by a comprehensive track inspection train. The parameters of the track gauge and the left and right rail alignment are considered
Szabolcs Fischer   +4 more
doaj   +1 more source

Real-Time Measurement of Track Irregularities Using an Instrumented Axle and Kalman Filtering Techniques

open access: yes, 2023
A model-based methodology for the estimation of both lateral and vertical track irregularities is presented. This methodology, based on Kalman filter techniques, was developed for an independent and compact measuring system comprising an instrumented ...
Yu, Xinxin   +4 more
core   +1 more source

PDEM-based stochastic analysis of a train-track-bridge system using dimension-reduced simulations of turbulent winds and track irregularities

open access: yes, 2023
Winds and track irregularities are inherently random in nature, but most of previous work did not fully consider this randomicity in computation of the dynamic response of train-track-bridge system.
Yan Han (173242)   +5 more
core   +1 more source

Characterization of Track Irregularities With respect to vehicle response

open access: yes, 2012
In this thesis a study, investigating the correlation between vehicle/track forces and track irregularities, is presented. The aim is to see if the correlation increases, using the first and second order derivatives of the track irregularities instead of the amplitude of the irregularities themselves.
Lönnbark, Gustav
openaire   +2 more sources

A Track Geometry Measuring System Based on Multibody Kinematics, Inertial Sensors and Computer Vision

open access: yesSensors, 2021
This paper describes the kinematics used for the calculation of track geometric irregularities of a new Track Geometry Measuring System (TGMS) to be installed in railway vehicles.
José L. Escalona   +2 more
doaj   +1 more source

Sensitivity of Geometric Parameters in the Sustainability Development of Continuous Welded Rail

open access: yesActa Technica Jaurinensis, 2022
Continuous Welded Rails (CWR) are a key infrastructure element in the safety and efficiency of rail transportation. Their correct exploitation (operational) requires surveying and diagnostic monitoring based not only on the results of rail displacement ...
Katarzyna Dybeł, Arkadiusz Kampczyk
doaj   +1 more source

Effect of Track Irregularities on the Response of Two-Way Railway Tracks [PDF]

open access: yesApplied Sciences, 2019
In predicting the response of track from a moving train only one track is generally considered. However, the effect of ground vibrations from one track and its effect on the nearby tracks has not been studied completely. Therefore, in the present paper, the effect of track irregularities and speed on the prediction of two-way tracks response is ...
Omer Javaid, Dong-Ho Choi
openaire   +1 more source

Comparative Analysis of Axlebox Accelerations in Correlation with Track Geometry Irregularities

open access: yesActa Technica Jaurinensis, 2019
Stochastic track irregularities influence additional dynamic forces developed in the vehicle-track interaction that lead to faster deterioration of track.
Csaba Ágh
doaj   +1 more source

Research of geometry effects on the railway track in the alignment, represented in the form of geometric models, on the indicators of the dynamic interaction of the track and rolling stock

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2017
The article describes the approach of smoothing previous interpolation interval. Authors studied the influence of track irregularities in alignments between fixed points, realigned the length of the spline function on the distribution of bend values by ...
E. A. Sidorova
doaj   +1 more source

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