Dynamic interaction analysis of trains moving on embankments during earthquakes

S. H. Ju, H. C. Li

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

This study developed a time-domain finite element method to simulate the derailment of trains moving on embankments under seismic loading. The finite element mesh included trains, rails, embankment foundation, soil, and the absorbing boundary condition, where the seismic displacements were applied at the bottom of the mesh. For the cases of a perfectly smooth rail with or without seismic loading, the train derailment coefficients are almost independent of train speeds. However, with minor rail irregularities, they are highly dependent on train speeds. This study also shows that the resonance between the train and earthquake plays an important role in train derailment. The maximum derailment coefficients are quite linear in proportion to the peak ground acceleration (PGA) of the earthquake, if the structural behaviors and dynamic soil properties are not nonlinear.

Original languageEnglish
Pages (from-to)5322-5332
Number of pages11
JournalJournal of Sound and Vibration
Volume330
Issue number22
DOIs
Publication statusPublished - 2011 Oct 24

Fingerprint

Derailments
Embankments
rails
Earthquakes
earthquakes
Rails
mesh
soils
interactions
coefficients
irregularities
Soils
Geotextiles
proportion
finite element method
boundary conditions
Boundary conditions
Finite element method

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering

Cite this

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Dynamic interaction analysis of trains moving on embankments during earthquakes. / Ju, S. H.; Li, H. C.

In: Journal of Sound and Vibration, Vol. 330, No. 22, 24.10.2011, p. 5322-5332.

Research output: Contribution to journalArticle

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