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UID:0-316@aerospace.technion.ac.il

DTSTART;TZID=Asia/Jerusalem:20200101T163000

DTEND;TZID=Asia/Jerusalem:20200101T173000

DTSTAMP:20230527T132006Z

URL:https://aerospace.technion.ac.il/events/fiber-optics-based-aeroelastic
 -shape-sensing/

SUMMARY:Fiber-Optics-Based Aeroelastic Shape Sensing
DESCRIPTION:Lecturer:Miko Keren Rattner\n Faculty:Department of Aerospace E
 ngineering\n Institute:Technion – Israel Institute of Technology\n Locat
 ion:Classroom 165\, ground floor\, Library\, Aerospace Eng.\n Zoom: \n Abs
 tract: \n Details: \n In recent years\, flight vehicles are becoming progr
 essively more elastic and as a result\, aeroelastic phenomena are becoming
  more prominent. A gusty environment or a high-load maneuver can result in
  considerable static or dynamic aeroelastic response\, which\, without pro
 per control\, might lead to excessive loads or even failure. Hence\, there
  is a great incentive to sense\, quantify\, and control aeroelastic respon
 ses. Static shape sensing can be used to monitor the elastically deformed 
 shape of a vehicle in trimmed flight\, while dynamic shape sensing can be 
 used to identify the aeroelastic system (frequencies and damping) under th
 e aircraft's operational conditions and control it.\nThis study investigat
 es the methodology and application aspects of aeroelastic shape sensing us
 ing fiber-optic sensors in a dedicated wind-tunnel experiment. For that pu
 rpose\, an elastic wing was designed and manufactured using rapid prototyp
 ing. The wing was tested at the Technion’s subsonic wind-tunnel at subcr
 itical points and all the way to flutter. Strain measurements via both di
 screte and distributed dynamic fiber-optic sensing technologies were used 
 to estimate a wing's deformed shape and modal displacements using a strain
 -to-displacement transformation algorithm.\nThe seminar will present the u
 se of optical fibers to measure strains\, and the strain-to-displacement a
 lgorithm used in this study. The seminar will present the test case\, aero
 elstic analyses\, and results from steady and dynamic wind-tunnel tests.
CATEGORIES:Seminars
LOCATION:Classroom 165\, ground floor\, Library\, Aerospace Eng.

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DTSTART:20191027T010000

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