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The electromechanical coupling effect introduced by piezoelectric vibration energy harvesting (PVEH) presents serious modeling challenges. This book provides close-form accurate mathematical modeling and experimental techniques to design and validate dual function PVEH vibration absorbing devices as a solution to mitigate vibration and maximize operational efficiency. It includes in-depth experimental validation of a PVEH beam model based on the analytical modal analysis method (AMAM), precisely identifying electrical loads that harvest maximum power and induce maximum electrical damping. The author's detailed analysis will be useful for researchers working in the rapidly emerging field of vibration based energy harvesting, as well as for students investigating electromechanical devices, piezoelectric sensors and actuators, and vibration control engineering.
List of contents
Introduction.- Overview of Vibration Energy Harvesting.- Distributed Parameter Modeling and Experimental Validation.- Modeling of Energy Harvesting Beams using Dynamic Stiffness Method.- A Theoretical Analysis of an "Electromechanical" Beam Tuned Mass Damper.- Experimental Analysis of an "Electromechanical" Beam Tuned Mass Damper.- Example of Vibration Suppression of Electronic Box Using Dual Function EH/TVA.- Summary and Future Research.
About the author
Dr. Sajid Rafique is currently working as a Researcher for European Union AAL Call 6 Project in the field of Robotics exoskeleton design for assistive living. He earned his MSc in Advanced Mechanical Engineering at Imperial College of London and his PhD. in Structural Dynamics from University of Manchester, UK. His current research interests center around vibrational analysis and modelling for energy applications.
Summary
Includes a thorough theoretical and experimental analysis of a PVEH beam or assembly of beams
Provides an in-depth investigation of a dual function piezoelectric vibration energy harvester beam/tuned vibration absorber (PVEH/TVA) or "electromechanical TVA"
Outlines the electromechanical TVA’s potential application to dual-function energy harvesting and vibration control
Establishes a procedure for the exact modeling of PVEH beams, and assemblies of such beams, using the dynamic stiffness matrix (DSM) method
