一个非线性冲击驱动的三电振动能量收获器用于频率上升转换
Hadeel Abumarar1, Alwathiqbellah Ibrahim1
1Department of Mechanical Engineering, University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
Micromachines
|May 27, 2023
概括
本研究介绍了一种振动冲击 triboelectric 能量收获系统用于频率上升转换. 它通过使用合横向梁来显著提高输出电压的1117%,从而提高了微型传感器的功率.
科学领域:
- 收集能源 收集能源
- 部落电的纳米发电机
- 振动冲击系统 振动冲击系统
- 频率上升转换频率上升转换
背景情况:
- 由于频率不匹配,传统的能源采集与环境振动作斗争.
- 低功率输出限制了微传感器和无线设备的收获能量的应用.
- 频率上升转换对于有效利用低频环境振动至关重要.
研究的目的:
- 开发一个振动冲击 triboelectric 能量收获系统用于频率上升转换.
- 为了研究磁联合双束系统的动态行为和电压生成.
- 通过克服环境振动的频率限制,提高能源采集效率.
主要方法:
- 采用了两个磁合的悬臂梁,具有不同的自然频率.
- 集成了一个带高频光束的 triboelectric 能量收获器,用于接触分离冲击.
- 采用两度自由度 (2DOF) 一次性参数模型进行动态分析.
- 进行静态分析以确定单稳定和双稳定的操作模式.
主要成果:
- 在单稳定和双稳定体制中观察到软化和硬化行为.
- 与单一稳定模式相比,在双稳定模式下实现了1117%的值电压显著增加.
- 通过实验测量成功验证模拟结果.
- 证明了频率上升转换能力,在低频光束范围产生信号.
结论:
- 振动冲击 triboelectric 能量收集系统有效地实现了频率向上转换.
- 双稳定模式显著提高了产生的输出电压.
- 这项技术显示出通过有效收集环境振动来为微型传感器和无线应用提供动力的巨大潜力.
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