Evaluation on mechanical impact parameters in piezoelectric power generation
Evaluation on mechanical impact parameters in piezoelectric power generation
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DOI：
10.1109/ascc.2015.7244525
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发表时间：
2015-09
期刊：
影响因子：
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通讯作者：
A. A. Basari-A.;S. Awaji;Shintaro Sakamoto;S. Hashimoto;B. Homma;K. Suto;H. Okada;H. Okuno;Kojiro Kobayashi;S. Kumagai
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文献类型：
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作者：
A. A. Basari-A.;S. Awaji;Shintaro Sakamoto;S. Hashimoto;B. Homma;K. Suto;H. Okada;H. Okuno;Kojiro Kobayashi;S. Kumagai
研究了两种机械冲击参数对冲击式压电发电的影响。参数是速度和质量。采用自由落体实验作为评价方法。结果表明，瞬时输出电压峰值与冲击速度成正比，输出功率与冲击速度成直线关系。在相同的冲击速度下，重物的动量和冲击力越大，重物的使用优势就越明显。然而，在冲击速度的调整被认为是更有效的更高的瞬时输出功率比质量。实验结果表明，4g钢球的动量为4.34gm/s时，其输出功率比8 g钢球的输出功率高出近300%。进一步的分析与基于受迫振动的冲击式压电发电实验表明，同样的结论。
This paper presents a study on effect of two mechanical impact parameters on impact mode piezoelectric power generation. The parameters are velocity and mass. Free fall experiment is used as the evaluation method. It turns out that peak of instantaneous output voltage is proportional to the impact velocity and for output power it is in a straight line relationship with the same parameter. For the same impact velocity, advantage in the usage of heavy object becomes clearer as its momentum and impact force are higher. However, adjustment in the velocity of impact is found to be more effective for higher instantaneous output power than the mass. This is proven by the output power which has been generated by 4g steel ball with momentum of 4.34gm/s is nearly 300% higher than that of 8g steel ball for the same momentum. Further analysis with forced vibration-based impact mode piezoelectric power generation experiment shows that the same conclusion can be made.