Multiple solutions and corresponding power output of a nonlinear bistable piezoelectric energy harvester
1 Faculty of Mechanical Engineering,
Lublin University of Technology, Nadbystrzycka 36, 20-618
2 College of Engineering, Swansea University Bay Campus, Fabian Way, Crymlyn Burrows, Swansea SA1 8EN, UK
a e-mail: firstname.lastname@example.org
Received in final form: 24 February 2016
Published online: 13 April 2016
We examine multiple responses of a vibrational energy harvester composed of a vertical beam and a tip mass. The beam is excited horizontally by a harmonic inertial force while mechanical vibrational energy is converted to electrical power through a piezoelectric patch. The mechanical resonator can be described by single or double well potentials depending on the gravity force from the tip mass. By changing the tip mass we examine the appearance of various solutions and their basins of attraction. Identification of particular solutions of the energy harvester is important as each solution may provide a different level of power output.
Key words: Statistical and Nonlinear Physics
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