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SUMMARY:Railyway vibration: from track to nearby buildings - Dr David Conn
 olly\, Associate Professor\, University of Leeds
DTSTART:20201016T150000Z
DTEND:20201016T153000Z
UID:TALK151933@talks.cam.ac.uk
CONTACT:46601
DESCRIPTION:On railway lines\, train passage results in the generation of 
 vibration.  This vibration initially occurs at the wheel-rail contact area
 \, before propagating through the track structure\, the supporting soil an
 d into nearby buildings.  From a numerical simulation viewpoint\, it is ch
 allenging to model an unbounded domain\, over a wide frequency range\, spa
 nning from the source to receiver.  Therefore this talk presents a variety
  of numerical approaches that can be combined to investigate such problems
 .  Firstly\, the models are used to analyse the interaction between train 
 and track\, and the effect of train speed on track dynamics.  In particula
 r\, the ‘critical speed’ phenomena is addressed which is becoming incr
 easingly important for high-speed lines.  Secondly\, the models are used t
 o investigate the propagation of vibration energy in the far-field where i
 t may interact with nearby buildings.  Some topics discussed include the d
 evelopment of fast-running scoping models and the effect of localised defe
 cts on far-field vibrations.
LOCATION:Online - Teams.  Please email div-c@eng.cam.ac.uk for the link
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