Abstract
This paper presents a piezoelectric energy harvester (PEH), which harvests electric power energy from torsional vibration induced by internal combustion (IC) engines. The PEH can generate electric power for a wireless sensor node system by simply attaching a compact cantilever beam structure to the surface of the rotating shaft. A prototype PEH is manufactured by using a commercial piezoelectric wafer and mounted on a torque converter (i.e., engine output). The primary harvesting performance of the PEH prototype is experimentally validated through laboratory tests using a low-inertia dynamometer. The frequency response function of the PEH is investigated to evaluate its harvesting capability. Finally, its potential application to a wireless shaft torque transducer is discussed.
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Kim, G.W. Piezoelectric energy harvesting from torsional vibration in internal combustion engines. Int.J Automot. Technol. 16, 645–651 (2015). https://doi.org/10.1007/s12239-015-0066-6
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DOI: https://doi.org/10.1007/s12239-015-0066-6