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首页> 外文期刊>Japanese journal of applied physics >An H-shaped two-dimensional piezoelectric vibration energy harvester
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An H-shaped two-dimensional piezoelectric vibration energy harvester

机译：H形二维压电振动能量收割机

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An H-shaped piezoelectric vibration energy harvester (VEH) with two dimensional receiving direction is designed to provide power for engine fault monitoring in this work. The VEH consist of one main-beam which receives the vibrational excitation of horizontal direction, and two sub-beams which receive the vibrational excitation of vertical direction. The main-beam and the sub-beam of this H-shaped VEH are almost independent. So this H-shaped VEH could be modelled as a lumped-mass model. The models of the output voltage and the output power are given. The H-shaped VEH is fabricated using computer numerical control technology. The measured results show that the main-beam's output voltage is 1011 mV with the resonant frequency of 110 Hz, and the sub-beam's output voltage is 1021 mV with the resonant frequency of 118 Hz. The measured maximum output power of main-beam is 24.5 mu W when the sliding rheostat is at 12.9 k Omega. And the measured maximum output power of sub-beam is 12.3 mu W when the sliding rheostat is at 29.0 k Omega. The power density of the main-beam is about 0.286 mu W mm(-3), and the power density of the sub-beam is about 0.149 mu W mm(-3). Therefore, this H-shaped VEH can provide an effective solution of energy harvesting for engine fault monitoring system. In the future, the size of the structure will be reduced by MEMS technology and this H-shaped VEH can be integrated with other electronic devices. (C) 2019 The Japan Society of Applied Physics
机译：具有二维接收方向的H形压电振动能量收割机（VAR）设计为在这项工作中提供发动机故障监测的电力。该车辆由一个主梁组成，该主梁接收水平方向的振动激发，以及接收垂直方向振动激发的两个子梁。主梁和该H形VEV的子束几乎是独立的。因此，该H形VEL可以被建模为集成质量模型。给出了输出电压和输出功率的模型。 H形载体使用计算机数控技术制造。测量结果表明，主梁的输出电压为1011 mV，谐振频率为110Hz，子梁的输出电压为1021 mV，谐振频率为118Hz。当滑动变阻器at处于12.9kΩ时，主光束的测量最大输出功率为24.5μm。当滑动变阻器为29.0kΩ时，子光束的测量最大输出功率为12.3μW。主光束的功率密度约为0.286μmmmm（-3），并且子梁的功率密度约为0.149μmmmmm（-3）。因此，该H形VEV可以为发动机故障监测系统提供有效的能量收集解决方案。将来，MEMS技术将减少结构的尺寸，并且该H形VEL可以与其他电子设备集成。 （c）2019年日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2019年第10期|106506.1-106506.7|共7页
  • 作者

    Wang Debo; Lu Haozan; Deng Licheng; Zhang Dong;

  • 作者单位

    Nanjing Univ Lab Modern Acoust MOE Nanjing Jiangsu Peoples R China|Nanjing Univ Posts & Telecommun Coll Elect & Opt Engn Nanjing 210023 Jiangsu Peoples R China;

    Nanjing Univ Posts & Telecommun Coll Elect & Opt Engn Nanjing 210023 Jiangsu Peoples R China;

    Nanjing Univ Posts & Telecommun Coll Elect & Opt Engn Nanjing 210023 Jiangsu Peoples R China;

    Nanjing Univ Lab Modern Acoust MOE Nanjing Jiangsu Peoples R China;

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