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Effect of External Resistances on Energy Harvesting Behaviour of Porous Functionally Graded Magneto-Electro-Elastic Beam

Mangalasseri, AS and Mahesh, V and Mahesh, V and Mukunda, S and Ponnusami, SA and Harursampath, D (2023) Effect of External Resistances on Energy Harvesting Behaviour of Porous Functionally Graded Magneto-Electro-Elastic Beam. [Book Chapter]

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Official URL: https://doi.org/10.1201/9781003328032-3


Harvesting energy from various ambient sources enables the utilization of energy that would otherwise be wasted, and this forms the basic principle behind energy harvesting devices. In this chapter, an analytical formulation is developed for a porous functionally graded magneto-electro-elastic (P-FGMEE) energy harvesting system. The material properties are assumed to follow modified power-law model. Harvesting the generated energy requires the presence of appropriate electric and magnetic circuits. Therefore, studying the influence of the resistances used to utilize the generated potentials is crucial for any energy harvesting system. The effects of main parameters such as type of substrate material, type of gradation, gradient index are studied, with varying values of the resistances R1 and R2. In manufactured composite materials, the porosities infused into the material during fabrication tend to influence their behaviour. For this reason, the effect of porosity parameters such as porosity distribution and porosity index on the energy harvesting potential with respect to the resistances is explored here. For the computation of the required values, the true resonant frequency of the system is used. The results of this chapter may be utilized for the effective design of energy harvesting systems using MEE materials and to tune the electric circuits as needed to obtain the optimized output values. Such systems offer significant improvement over conventional devices based on piezoelectric materials.

Item Type: Book Chapter
Publication: Mathematical Methods in Dynamical Systems
Publisher: CRC Press
Additional Information: The copyright for this article belongs to the CRC Press.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 07 Jul 2023 16:14
Last Modified: 07 Jul 2023 16:14
URI: https://eprints.iisc.ac.in/id/eprint/82102

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