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SUMMARY:The effects of friction interface on the nonlinear dynamic respons
 e in turbomachinery - Dr Jie Yuan\, University of Southampton
DTSTART:20250307T160000Z
DTEND:20250307T170000Z
UID:TALK226132@talks.cam.ac.uk
CONTACT:46601
DESCRIPTION:Friction interfaces can be found in almost all engineering sys
 tems such as jointed structures in aircraft engines\, deployable structure
 s in spacecraft\, friction braking systems in automotive and railway indus
 tries\, and drilling systems in oil and gas industries. The rubbing motion
  between these loaded contact interfaces generates friction that provide c
 rucial damping for some engineering structure. However\, the friction can 
 cause fretting fatigue and wear on the mechanical interface leading to sig
 nificant energy wastes\, surface damage\, shorter life cycles and expensiv
 e maintenance costs. This talk provides an overview of the historical deve
 lopment of friction dampers for bladed disk systems\, emphasizing the inte
 rplay between numerical modeling\, experimental validation\, and real-worl
 d applications. Key advancements in contact friction models\, reduced-orde
 r modelling techniques\, and efficient numerical solvers will be discussed
 \, alongside a brief review of state-of-the-art experimental test rigs. Th
 e talk will conclude with emerging trends in novel damping concepts\, adva
 nced simulation techniques\, and next-generation testing technologies shap
 ing the future of friction interface design.
LOCATION:JDB Seminar Room\, CUED
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