BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Wave scattering in periodic\, quasi-periodic and graded structures
  - Vladislav  Sorokin  (University of Auckland)
DTSTART:20230207T090000Z
DTEND:20230207T094500Z
UID:TALK194749@talks.cam.ac.uk
DESCRIPTION:Periodic structures are extensively used for vibration mitigat
 ion purposes due to the presence of frequency bandgaps\, frequency ranges 
 in which waves travelling in the structures attenuate. One of the physical
  mechanisms for the emergence of frequency bandgaps is Bragg scattering\, 
 multiple wave scattering leading to destructive wave interference. Convent
 ional methods for determining frequency bandgaps are based on the classica
 l Floquet theory and imply structures to be strictly periodic. The present
  talk aims to present theoretical approaches that can be used to study wav
 e propagation and scattering in structures with disturbed periodicity\, as
  well as in quasi-periodic and graded structures. Benefits of quasi-period
 ic and graded structures over conventional periodic ones in terms of vibra
 tion attenuation performance will be also briefly discussed.
LOCATION:Seminar Room 1\, Newton Institute
END:VEVENT
END:VCALENDAR