压电贴片用于振动能量采集的尖端质量定向梁的建模与优化

Q4 Energy
Laxmi. B. Wali, C. V. Chandrasekhara
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引用次数: 0

摘要

能量收集是从周围环境中提取能量。利用智能材料为无线传感器和低功耗电子设备供电,振动能量采集领域受到了许多研究人员的关注。在文献中,作者专注于具有尖端质量的悬臂梁的分析和有限元模型。本文重点研究了以压电片为边界并安装有尖端质量的定向悬臂梁的新的数值技术,使用非正交归一化的直接方法导出电压、电流和功率输出的频率响应函数。MatLab程序是在考虑欧拉-伯努利梁假设、压电材料本构方程和汉密尔顿原理的情况下开发的。MatLab程序与以前对单晶束正交归一化机电有限元的工作进行了验证,并获得了良好的一致性。给出了所考虑模型的动力学特性,并得到了优化参数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modelling and Optimization of Orientated Beam with Tip Mass for Vibration Energy Harvesting using Piezoelectric Patches
Energy harvesting is extracting energy from ambient sources. Vibration energy harvesting area have received attention of many researchers to power wireless sensors and low-power electronic devices from smart materials. In literature, authors have focused on analytical and finite element models of cantilever beam with tip mass. The paper focuses on the novel numerical technique for orientated cantilever beam bounded with piezoelectric patches and mounted with tip mass using the direct method with non-orthonormalisation to derive the frequency response function (FRF) for voltage, current and power output. MatLab programme is developed considering the Euler Bernoulli beam assumptions, constitutive equations of piezoelectric material and Hamilton’s principle. The MatLab programme is validated with the previous work on orthonormalisation electro-mechanical finite element for unimorph beam and good agreement is obtained. The dynamic characteristics of considered model is presented and optimized parameters are obtained.
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来源期刊
Journal of Mines, Metals and Fuels
Journal of Mines, Metals and Fuels Energy-Fuel Technology
CiteScore
0.20
自引率
0.00%
发文量
101
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