Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

video_overview

112 views

Published on

  • Be the first to comment

  • Be the first to like this

video_overview

  1. 1. Piezoelectric Patches Overview Dr. Hassan Hariri Pr. Yves Bernard & Pr. Adel Razek GeePs: Génie électrique et électronique de Paris http://www.geeps.centralesupelec.fr/ Email: haririhas@gmail.com
  2. 2. Copyright Hassan Hariri 2016 The output voltage is determined by Piezoelectric Transformers
  3. 3. Copyright Hassan Hariri 2016 Piezoelectric Transformers
  4. 4. Copyright Hassan Hariri 2016 Piezoelectric patches damage detection
  5. 5. Copyright Hassan Hariri 2016 Active control of flexible structures A schematic diagram for active control using two-non-collocated patches for a flexible structure subjected to unnecessary disturbance
  6. 6. Copyright Hassan Hariri 2016 Active control of flexible structures The model can be used to control the structure by transforming the finite element model in nodal variables into modal model and then into state space. Therefore our system is represented by the state space equation. Then controller can be designed to reject external disturbances for example (no useful vibrations) or in order to maintain a desired.
  7. 7. Copyright Hassan Hariri 2016 Active control of flexible structures Schematic blocks of transfer functions
  8. 8. Copyright Hassan Hariri 2016 Passive damping vibration of thin beams and plates
  9. 9. Copyright Hassan Hariri 2016 Where the electrical impedance of the circuit is written as Passive damping vibration of thin beams and plates
  10. 10. Copyright Hassan Hariri 2016 Passive damping vibration of thin beams and plates

×