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首页> 外文期刊>Energy Conversion & Management >An ultra-low frequency vibration energy harvester with zigzag piezoelectric spring actuated by rolling ball
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An ultra-low frequency vibration energy harvester with zigzag piezoelectric spring actuated by rolling ball

机译：具有通过滚球驱动的Z字形压电弹簧的超低频率振动能量收割机

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摘要

This paper presents an ultra-low frequency vibration energy harvester using a zigzag piezoelectric spring oscillator, which consists of two piezoelectric zigzag springs and a rolling metal ball. The metal ball rolls and drives the piezoelectric springs to deform to harvest energy when a slight vibration occurs in the external environment. The natural frequency of zigzag spring oscillator piezoelectric energy harvester (ZSO-PEH) is related to the length of the spring and the weight of the ball, correlation analysis is carried out by theoretical derivation and ANSYS simulation. It is found experimentally that the proposed device offers efficient energy output in ultra-low frequency excitation. A maximum output power of 5.68 mW is achieved under the best matching resistance of 5.1 k omega at the excitation frequency of 3 Hz. The performance of energy harvester can be optimized by adjusting the length of the spring and the mass of the ball. The results show that the proposed piezoelectric energy harvester has the potential to power low-power electronic devices and wireless sensor nodes.
机译：本文介绍了一种使用Z字形压电弹簧振荡器的超低频率振动能量收割机，其包括两个压电之字形弹簧和滚动金属球。当在外部环境中发生轻微振动时，金属球滚动并驱动压电弹簧以使能量变形。 Z字形弹簧振荡器压电能量收割机（ZSO-PEH）的固有频率与弹簧的长度和球的重量有关，通过理论推导和ANSYS仿真进行相关分析。实验地发现所提出的装置在超低频率激励下提供有效的能量输出。在励磁频率为3 Hz的最佳匹配电阻下实现了5.68mW的最大输出功率。通过调节弹簧的长度和球的质量，可以优化能量收割机的性能。结果表明，所提出的压电能源收割机具有电源低功率电子设备和无线传感器节点的潜力。

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  • 来源
    《Energy Conversion & Management》 |2021年第9期|114439.1-114439.10|共10页
  • 作者

    Shi Ge; Peng Yansheng; Tong Dike; Chang Jian; Li Qing; Wang Xiudeng; Xia Huakang; Ye Yidie;

  • 作者单位

    China Jiliang Univ Coll Mech & Elect Engn Hangzhou 310018 Peoples R China;

    China Jiliang Univ Coll Mech & Elect Engn Hangzhou 310018 Peoples R China;

    China Jiliang Univ Coll Mech & Elect Engn Hangzhou 310018 Peoples R China;

    China Jiliang Univ Coll Mech & Elect Engn Hangzhou 310018 Peoples R China;

    China Jiliang Univ Coll Mech & Elect Engn Hangzhou 310018 Peoples R China;

    Ningbo Univ Fac Elect Engn & Comp Sci Ningbo 315211 Peoples R China;

    Ningbo Univ Fac Elect Engn & Comp Sci Ningbo 315211 Peoples R China;

    Ningbo Univ Fac Elect Engn & Comp Sci Ningbo 315211 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Vibration energy harvester; Zigzag piezoelectric spring oscillator; Ultra-low frequency vibration;

    机译：振动能量收割机;Z字形压电弹簧振荡器;超低频率振动;

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