Lateral vibrations of curved railway tracks to transient excitations

Chayut Ngamkhanong, Xin Liu, Sakdirat Kaewunruen

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Wheel/rail interaction is a traveling source of excitation, sound radiation and vibration along the railway corridoors. The train-track interaction on curved tracks constitutes high-pitch noise pollution inducing a considerable concern of rail asset owners, commuters and people living or working along the rail corridor. The sound and vibration can be in various forms and spectra. The undesirable sound and vibration on curves are often called squeal noises. This paper illustrates the dynamic influences of curve radii on the lateral vibrations, which are the possible mechanism for development of curve squeal under mode-coupling theory. The study is devoted to systems thinking the approach and dynamic assessment in resolving railway curve noise problems. Curve track models in three-dimensional space have been built using finite element package, STRAND7. The dynamic responses of curve track have been simulated by applying a moving train load. The simulations of railway tracks with different curve radii have been implemented to develop a comprehensive understanding of lateral track dynamics, containing dynamic behaviors of rail, cant, gauge and overall track responses.
Original languageEnglish
Title of host publicationAcoustics 2018
PublisherInstitute of Acoustics
Publication statusPublished - 24 Apr 2018
EventAcoustics 2018 - Cardiff, Cardiff, United Kingdom
Duration: 23 Apr 201824 Apr 2018


ConferenceAcoustics 2018
Country/TerritoryUnited Kingdom
Internet address


  • Lateral vibration
  • dynamics
  • curved railway tracks
  • transient loading
  • excitation
  • squeal noise
  • railway noise
  • cant dynamics
  • gauge dynamics


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