Output Power and Electromechanical Field Concentrations of S-Shaped Piezoelectric Bimorph Energy Harvesters Excited by Bending/Torsion Vibration

摘要

Piezoelectric ceramics, polymers and composites have been widely recognized for their potential utility in a large number of sensor and actuator applications. With an increasing concern about global warming, numerous energy harvesting technologies have gained importance and the direction of research has changed from just sensors and actuators to an interest in producing energy from renewable sources. In this paper, we discuss the dynamic' electromechanical bending/torsion response and output power of S-shaped piezoelectric energy harvesters.