NUMERICAL SYNTHESIS OF THE TRACK ALIGNMENT AND APPLICATIONS. PART I: THE SYNTHESIS METHOD

This paper features a method to synthesize the track irregularities, by which the alignment may be analytically represented by a pseudo-stochastic function, as well as the implementation of such method in the numerical simulation of the dynamic behaviour of the railway vehicles. The method thus sugg...

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Main Author: Mădălina DUMITRIU
Format: Article
Language:English
Published: Silesian University of Technology 2016-03-01
Series:Transport Problems
Subjects:
Online Access:http://transportproblems.polsl.pl/pl/Archiwum/2016/zeszyt1/2016t11z1_02.pdf
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author Mădălina DUMITRIU
author_facet Mădălina DUMITRIU
author_sort Mădălina DUMITRIU
collection DOAJ
description This paper features a method to synthesize the track irregularities, by which the alignment may be analytically represented by a pseudo-stochastic function, as well as the implementation of such method in the numerical simulation of the dynamic behaviour of the railway vehicles. The method thus suggested allows a convenient formulation of the limits of the interval specific to the wavelengths of the track lateral irregularities, so that it will be representative for the frequency range of the vehicle lateral vibrations. The Part I of this paper demonstrates the method to synthesize the track alignment and its basic elements – the power spectral density of the track irregularities, as per ORE B176 and the values associated with the track quality levels, mentioned in the UIC 518 Leaflet. The Part II introduces the results of the numerical simulations regarding the dynamic behaviour of the railway vehicle during the circulation on a tangent track with lateral irregularities, synthesized as in the method herein.
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spelling doaj.art-f041f26f98f9458d80c03e42246b27ae2022-12-22T02:46:32ZengSilesian University of TechnologyTransport Problems1896-05962300-861X2016-03-01111192810.20858/tp.2016.11.1. 2NUMERICAL SYNTHESIS OF THE TRACK ALIGNMENT AND APPLICATIONS. PART I: THE SYNTHESIS METHODMădălina DUMITRIU0University Politehnica of BucharestThis paper features a method to synthesize the track irregularities, by which the alignment may be analytically represented by a pseudo-stochastic function, as well as the implementation of such method in the numerical simulation of the dynamic behaviour of the railway vehicles. The method thus suggested allows a convenient formulation of the limits of the interval specific to the wavelengths of the track lateral irregularities, so that it will be representative for the frequency range of the vehicle lateral vibrations. The Part I of this paper demonstrates the method to synthesize the track alignment and its basic elements – the power spectral density of the track irregularities, as per ORE B176 and the values associated with the track quality levels, mentioned in the UIC 518 Leaflet. The Part II introduces the results of the numerical simulations regarding the dynamic behaviour of the railway vehicle during the circulation on a tangent track with lateral irregularities, synthesized as in the method herein.http://transportproblems.polsl.pl/pl/Archiwum/2016/zeszyt1/2016t11z1_02.pdftrack alignmentpower spectral densitytrack geometry qualityrailway dynamics
spellingShingle Mădălina DUMITRIU
NUMERICAL SYNTHESIS OF THE TRACK ALIGNMENT AND APPLICATIONS. PART I: THE SYNTHESIS METHOD
Transport Problems
track alignment
power spectral density
track geometry quality
railway dynamics
title NUMERICAL SYNTHESIS OF THE TRACK ALIGNMENT AND APPLICATIONS. PART I: THE SYNTHESIS METHOD
title_full NUMERICAL SYNTHESIS OF THE TRACK ALIGNMENT AND APPLICATIONS. PART I: THE SYNTHESIS METHOD
title_fullStr NUMERICAL SYNTHESIS OF THE TRACK ALIGNMENT AND APPLICATIONS. PART I: THE SYNTHESIS METHOD
title_full_unstemmed NUMERICAL SYNTHESIS OF THE TRACK ALIGNMENT AND APPLICATIONS. PART I: THE SYNTHESIS METHOD
title_short NUMERICAL SYNTHESIS OF THE TRACK ALIGNMENT AND APPLICATIONS. PART I: THE SYNTHESIS METHOD
title_sort numerical synthesis of the track alignment and applications part i the synthesis method
topic track alignment
power spectral density
track geometry quality
railway dynamics
url http://transportproblems.polsl.pl/pl/Archiwum/2016/zeszyt1/2016t11z1_02.pdf
work_keys_str_mv AT madalinadumitriu numericalsynthesisofthetrackalignmentandapplicationspartithesynthesismethod