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Experimental Test for Active Control of Vibration in a Cantilever Beam Using Piezoelectric Patches Applicable in Aerospace Structures

Saray Gord Afshari, Sajad | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 44004 (45)
  4. University: Sharif University of Technology
  5. Department: Aerospace Engineering
  6. Advisor(s): Hosseini Kordkheili, Ali; Nobahari, Hadi
  7. Abstract:
  8. Structural vibrations can be reduced using an opposite force generated from an active controller. Nowadays implementation of smart materials for active controlling of vibration is growing increasingly specially in aircrafts, spacecrafts and other state of art manmade machines. In aerospace structures as the weight is extremely a limiting factor, the lightweight structural control strategies are more demanded. Considering these motivations, in recent decades, engineers have done many researches to implement active structural damping methods in industrials applications. Among all active vibration approaches, using piezoelectric materials is one of the most attractive ways because of their light weight, low energy consumption and high precision. In this report, an experimental investigation is done to improve application of piezoceramic patches in active vibration control. For this purpose, we will gather data from piezo sensors to identify our desired system. Then by applying some new optimization methods, we will improve the performance of our designed classical and modern controllers. Besides, using finite element analysis, we model the beam system to improve our experimental setup characteristics. The FEA method uses an eight-nodded model with Lagrangian method
  9. Keywords:
  10. Active Control ; Piezoelectric ; Vibration ; Optimization ; Beams

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