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Free vibrations of interspersed railway track systems in three-dimensional space

Journal Article


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Abstract


  • Statistically, the actual loading conditions for railway tracks are rather dynamic and transient. The dynamic loadings due

    to train and track interactions redistribute from the rails to the rail pad, from the rail pad to the railway sleeper, and from

    the railway sleeper to the underlying ground. Commonly, railway sleeper in track systems is modeled as a beam on elastic

    foundation. This study makes use of a calibrated finite element model of railway sleepers in a track system, in order to

    investigate the resonant frequencies and associated mode shapes of railway components in interspersed track systems. The

    numerical model takes into account the tensionless characteristic of the elastic support as well as the more realistic partial

    support condition. Using a finite element package STRAND7, the dynamic finite element model of the railway concrete

    sleeper was precisely established. The dynamic model has then been extended to demonstrate free vibration behaviours of

    the railway tracks. The effect of interspersed patterns (1 in 2; 1 in 3; and 1 in 4) on railway track dynamics has been firstly

    investigated and presented herein.

UOW Authors


  •   Kaewunruen, Sakdirat (external author)
  •   Alex M. Remennikov
  •   Aikawa, Akira (external author)
  •   Sakai, Hirotaka (external author)

Publication Date


  • 2014

Citation


  • Kaewunruen, S., Remennikov, A. M., Aikawa, A. & Sakai, H. (2014). Free vibrations of interspersed railway track systems in three-dimensional space. Acoustics Australia, 42 (1), 20-26.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3246&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2237

Number Of Pages


  • 6

Start Page


  • 20

End Page


  • 26

Volume


  • 42

Issue


  • 1

Place Of Publication


  • http://www.acoustics.asn.au/joomla/journal-back-issues-non-members.html

Abstract


  • Statistically, the actual loading conditions for railway tracks are rather dynamic and transient. The dynamic loadings due

    to train and track interactions redistribute from the rails to the rail pad, from the rail pad to the railway sleeper, and from

    the railway sleeper to the underlying ground. Commonly, railway sleeper in track systems is modeled as a beam on elastic

    foundation. This study makes use of a calibrated finite element model of railway sleepers in a track system, in order to

    investigate the resonant frequencies and associated mode shapes of railway components in interspersed track systems. The

    numerical model takes into account the tensionless characteristic of the elastic support as well as the more realistic partial

    support condition. Using a finite element package STRAND7, the dynamic finite element model of the railway concrete

    sleeper was precisely established. The dynamic model has then been extended to demonstrate free vibration behaviours of

    the railway tracks. The effect of interspersed patterns (1 in 2; 1 in 3; and 1 in 4) on railway track dynamics has been firstly

    investigated and presented herein.

UOW Authors


  •   Kaewunruen, Sakdirat (external author)
  •   Alex M. Remennikov
  •   Aikawa, Akira (external author)
  •   Sakai, Hirotaka (external author)

Publication Date


  • 2014

Citation


  • Kaewunruen, S., Remennikov, A. M., Aikawa, A. & Sakai, H. (2014). Free vibrations of interspersed railway track systems in three-dimensional space. Acoustics Australia, 42 (1), 20-26.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3246&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2237

Number Of Pages


  • 6

Start Page


  • 20

End Page


  • 26

Volume


  • 42

Issue


  • 1

Place Of Publication


  • http://www.acoustics.asn.au/joomla/journal-back-issues-non-members.html