Design and Optimization of High-Performance 
Through Hole Based MEMS Energy Harvester Using PiezoMUMPs

Biswal, Priyabrata; Kar, Sanjeeb Kumar; Mukherjee, Banibrata

doi:10.1007/s11664-020-08528-6

Cited by 6 publications

(1 citation statement)

References 25 publications

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“…1, commonly used as kinetic energy harvesters due to their high energy density and very good scalability, exhibit a rapid decline in conversion efficiency, i.e., reduced performances, when subjected to an excitation different from the eigenfrequency of the specific device [4]. Several approaches to piezoelectric energy harvester (PEH) design, aimed at overcoming this issue, have been suggested in literature [4][5][6], most promising being geometry optimization [7][8][9] and frequency up-conversion (FUC) based on plucking PEH's free end and letting it oscillate at its eigenfrequency [10].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity analysis of numerical model parameters for optimized PEH responses

Gljušćić¹,

Zelenika²

2023

J. vibroeng.

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With the increasing popularity of wearable devices, typically employed in fitness and health monitoring, there is an evident need to extend their autonomy and replace the conventional power sources with environmentally friendly alternatives. Piezoelectric energy harvesting systems, optimized for collecting kinetic energy from random human motion and transduce it into electrical energy, represent a viable option for powering autonomous wearables. Since established analytical methods are unable to model the behaviour of piezoelectric harvesters with complex optimized geometries, suitable numerical models need to be employed for their design. This implies the need of a thorough study focused on the mechanical engineering design optimization purposes of how the finite element type and mesh density affect the uncoupled modal and coupled transient responses of a new class of optimised design configurations of the studied devices.

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