Numerical Analysis of a Piezoelectric-Based Rotational Energy Harvester
Author(s): 1. S. Udhayakumar, 2. V. Amresh, 3. R. Sridhar
Authors Affiliations:
- Assistant Professor, Department of Mechanical Engineering, PSG College of Technology, Coimbatore, India
- PG Student, Department of Mechanical Engineering, PSG College of Technology, Coimbatore, India
- Assistant Professor, Department of Mechanical Engineering, PSG College of Technology, Coimbatore, India
This paper outlines the design and numerical analysis of a rotational energy harvester that transduces rotational motion into electricity through piezoelectric transduction. The model consists of a rotating disc actuated by a motor shaft, primary and secondary beams that deform periodically under actuation. A piezoelectric disc bonded to the primary beam serves as the primary transducer, producing voltage from mechanical strain. Numerical analysis was performed in COMSOL Multiphysics at rotational speeds of 50 to 150 RPM. Outputs indicate an increase in voltage and power output, reaching 0.355 V and 0.126 µW at 150 RPM. The harvester shows good performance at low speeds, justifying its application in self-powered sensors and rotating equipment.
S. Udhayakumar, V. Amresh, R. Sridhar (2025); Numerical Analysis of a Piezoelectric-Based Rotational Energy Harvester, International Journal for Innovative Research in Multidisciplinary Field, ISSN(O): 2455-0620, Vol-11, Issue-6, Pp.134-141. Available on – https://www.ijirmf.com/
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