Experimental validation of isolated high-energy orbits and broken bands in nonlinear piezoelectric energy harvesters

IF 8.9 1区 工程技术 Q1 ENGINEERING, MECHANICAL Mechanical Systems and Signal Processing Pub Date : 2025-06-01 Epub Date: 2025-04-23 DOI:10.1016/j.ymssp.2025.112654
Yi Yang , Hongjun Xiang , Zhiwei Zhang , Xinyue Dai , Wenxin Yi , Tao Wang , Yixin Chen
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Abstract

This study provides the first comprehensive experimental validation of isolated high-energy orbits and broken bands in nonlinear piezoelectric energy harvesters (NPEHs), phenomena previously predicted only through numerical simulations. These high-energy orbits, emerging in bistable configurations, significantly enhance energy harvesting efficiency. The broken band phenomenon, observed in both monostable and bistable systems, offers practical guidance for optimizing resistance selection. Our experimental results confirm the reliability of our previously proposed analysis framework and deepen the understanding of NPEH dynamics. These findings lay a foundation for developing more efficient energy harvesting strategies and have significant implications for practical applications.

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非线性压电能量采集器中孤立高能轨道和破碎能带的实验验证
这项研究首次对非线性压电能量收集器(NPEHs)中孤立的高能轨道和断裂带进行了全面的实验验证,这些现象以前只能通过数值模拟来预测。这些高能量轨道以双稳构型出现,显著提高了能量收集效率。在单稳态和双稳态系统中均观察到断带现象,为优化电阻选择提供了实用指导。我们的实验结果证实了我们之前提出的分析框架的可靠性,并加深了对NPEH动力学的理解。这些发现为开发更有效的能量收集策略奠定了基础,并对实际应用具有重要意义。
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来源期刊
Mechanical Systems and Signal Processing
Mechanical Systems and Signal Processing 工程技术-工程:机械
CiteScore
14.80
自引率
13.10%
发文量
1183
审稿时长
5.4 months
期刊介绍: Journal Name: Mechanical Systems and Signal Processing (MSSP) Interdisciplinary Focus: Mechanical, Aerospace, and Civil Engineering Purpose:Reporting scientific advancements of the highest quality Arising from new techniques in sensing, instrumentation, signal processing, modelling, and control of dynamic systems
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