STUDY ON COUPLED DIELECTRIC PROPERTIES OF FLEXIBLE MICRO-NANOSTRUCTURES UNDER VIBRATION EXCITATION

Han Ni; Zhang Fuxi

doi:10.19912/j.0254-0096.tynxb.2024-1948

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (3) : 146-154. DOI: 10.19912/j.0254-0096.tynxb.2024-1948

STUDY ON COUPLED DIELECTRIC PROPERTIES OF FLEXIBLE MICRO-NANOSTRUCTURES UNDER VIBRATION EXCITATION

Han Ni, Zhang Fuxi

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Abstract

This paper establishes a mathematical model for the electrical behaviour of cantilever-based harvesters using the principle of electric potential superposition. This research proposes a computational framework to compute the cumulative electric potential generated by continuously distributed charges within electrified domains. By partitioning the system into three distinct regions, the proposed method systematically analyses the interrelations among cantilever vibration dynamics, open-circuit voltage, and short-circuit current, culminating in an analytical expression for the electrical performance of cantilever structures under acoustic excitation. The theoretical predictions are validated against finite element simulations and published experimental data. Under boundary conditions of a 0.8° oscillation angle and 14.6 mm maximum displacement, the model yields average open-circuit voltage and short-circuit current peaks of 168.2 V and 12.7 μA, respectively. These results align closely with experimental measurements （183.1 V and 10.9 μA） and simulation outcomes, confirming the model’s efficacy in characterizing the coupled dielectric behaviour of flexible micro-nano architectures.

Key words

energy harvesting / composite materials / dielectric materials / vibration response of flexible films / cantilever angle / potential integral accumulation model / average potential

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Han Ni, Zhang Fuxi. STUDY ON COUPLED DIELECTRIC PROPERTIES OF FLEXIBLE MICRO-NANOSTRUCTURES UNDER VIBRATION EXCITATION[J]. Acta Energiae Solaris Sinica. 2026, 47(3): 146-154 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1948

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