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Theoretical and
experimental studies of beam bimorph piezoelectric power
harvesters
Shudong Yu, Siyuan He and Wen Li |
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Vol. 5 (2010), No. 3, 427–445
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Abstract |
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This paper presents a theoretical model for simulating a piezoelectric beam bimorph power harvester consisting of a laminated piezoelectric beam, a proof mass, and an electrical load. The vertical offset of the proof mass center from the beam centroid couples the bending and longitudinal motions, which makes it necessary to consider both longitudinal and lateral vibrations simultaneously. Experiments were carried out on a beam bimorph prototype mounted on a shaker to measure the electrical output. Numerical results obtained using the proposed procedure for piezoelectric bimorph power harvesters are in good agreement with the experimental data. |
Keywords
power harvesting, finite element modeling, piezoelectric
structures, bending, axial deformation, rotary inertia
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Milestones
Received: 24 June 2009
Revised: 26 November 2009
Accepted: 26 November 2009
Published: 15 October 2010
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Authors |
| Shudong Yu | |
| Department of Mechanical and
Industrial Engineering Ryerson University 350 Victoria Street Toronto M5B 2K3 Canada |
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| Siyuan He | |
| Department of Mechanical and
Industrial Engineering Ryerson University 350 Victoria Street Toronto M5B 2K3 Canada |
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| Wen Li | |
| Department of Mechanical and
Industrial Engineering Ryerson University 350 Victoria Street Toronto M5B 2K3 Canada |
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