Stability performance analysis of complex nonlinear piezoelectric energy harvesting systems

IF 2.8 3区工程技术 Q2 MECHANICS

International Journal of Non-Linear Mechanics Pub Date : 2025-02-07 DOI:10.1016/j.ijnonlinmec.2025.105037

Guanghui Xia , Su Zhang , Mingrui Liu , Yufeng Zhang , Tingting Han , Hua Xia , Wei Wang , Xiaofang Kang , Leiyu Chen , Weiqiu Chen , C.W. Lim

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引用次数: 0

Abstract

Based on the multi-directionality of the excitation source, a more accurate mathematical model is established by taking into account five kinds of nonlinearities, including material nonlinearity, geometric nonlinearity, damping nonlinearity, inertial nonlinearity and coupling nonlinearity. The effects of parameters such as excitation amplitude, damping coefficients, resistance, tip masses and nonlinear piezoelectric coefficients on the response and stability of the system are analyzed by approximate resolution. The result shows that variation of excitation amplitude induces no impact on the stability, while linear damping coefficients and nonlinear piezoelectric coefficients have remarkable impact on the unstable region. Through analyzing the influence of different parameters, the adjusting of linear damping and selecting appropriate piezoelectric material can greatly improve the stability in the low frequency range.

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复杂非线性压电能量收集系统的稳定性分析

基于激励源的多方向性，考虑了材料非线性、几何非线性、阻尼非线性、惯性非线性和耦合非线性等五种非线性，建立了更为精确的数学模型。采用近似分辨率分析了激励幅值、阻尼系数、电阻、尖端质量和非线性压电系数等参数对系统响应和稳定性的影响。结果表明，激励幅值的变化对稳定性没有影响，而线性阻尼系数和非线性压电系数对不稳定区有显著影响。通过分析不同参数对系统的影响，通过调整线性阻尼和选择合适的压电材料，可以大大提高系统在低频范围内的稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Non-Linear Mechanics 物理-力学

CiteScore

5.50

自引率

9.40%

发文量

192

审稿时长

67 days

期刊介绍： The International Journal of Non-Linear Mechanics provides a specific medium for dissemination of high-quality research results in the various areas of theoretical, applied, and experimental mechanics of solids, fluids, structures, and systems where the phenomena are inherently non-linear. The journal brings together original results in non-linear problems in elasticity, plasticity, dynamics, vibrations, wave-propagation, rheology, fluid-structure interaction systems, stability, biomechanics, micro- and nano-structures, materials, metamaterials, and in other diverse areas. Papers may be analytical, computational or experimental in nature. Treatments of non-linear differential equations wherein solutions and properties of solutions are emphasized but physical aspects are not adequately relevant, will not be considered for possible publication. Both deterministic and stochastic approaches are fostered. Contributions pertaining to both established and emerging fields are encouraged.