Loading...

Developing an Analytical Model with Experimental Verification of Tapered Cantilevered Piezoelectric Vibration Energy Harvester

Ebrahimi Mamaghani, Mohammad | 2015

918 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46995 (45)
  4. University: Sharif University of Technology
  5. Department: Aerospace Engineering
  6. Advisor(s): Hosseini Kordkhaili, Ali
  7. Abstract:
  8. Evolution of electrical devices and the need for wireless sensor and remote control has led to extensive research in field of energy harvesting. Regarding this approach, most studies devoted to use of piezoelectric effect in converting the dissipative vibration energy into usable electrical energy. Despite extensive progress made in this field of engineering, there were no significant growth in analytical solution and implementation of mathematical equations related to dynamic and electricity of piezoelectric harvester of beams with different geometries. The main focus of this thesis is solving constitutive and coupled electromechanical equations of piezoelectric harvester related to a tapered cantilevered beam. The system is under base excitation with lateral motion. Constitutive equations were extracted analytically and solved using eigenfunction expansion method. Structural damping is assumed proportional, and also the final solution are formulated and provided. For experimental testing, the results are validated and approved for beam with a uniform cross-section. In the end, the parameter study related to geometry, mechanics and electricity system are discussed and conclusions laid out for the beam with exponential cross section
  9. Keywords:
  10. Analytical Method ; Energy Harvesting ; Modal Test ; Cross Section Variable ; Cantilever Beam ; Piezoelectric Energy Harvester ; Experimental Comparison

 Digital Object List

 Bookmark