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The Effect of the Parameters of a Vibration-Based Impact Mode Piezoelectric Power Generator

机译:基于振动的冲击模式压电发电机的参数影响

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摘要

This study reports the effects of the parameters of a vibration-based impact mode piezoelectric power generator. First, an evaluation of the effects of the impact parameters, the mass, and the impact velocity is presented. It is found that the output voltage of the piezoelectric device in impact mode is directly proportional to the velocity, whereas the output power is equal to a quadratic function of the same variable. For the same impact momentum, the effect of the velocity in generating a higher peak output is dominant compared with the mass. Second, the vibration-based impact mode piezoelectric power generator is discussed. The experimental results show that a wider operating frequency bandwidth of the output power can be achieved with the preloading configuration. However, regarding magnitude, due to the high velocity of impact, the configuration with a gap between the tip and the piezoelectric device produces a higher output.
机译:这项研究报告了基于振动的冲击模式压电发电机的参数的影响。首先,提出了对冲击参数,质量和冲击速度的影响的评估。发现在冲击模式下压电装置的输出电压与速度成正比,而输出功率等于相同变量的二次函数。对于相同的冲击动量,与质量相比,速度在产生更高的峰值输出中的作用占主导地位。其次,讨论了基于振动的冲击模式压电发电机。实验结果表明,采用预加载配置可以实现更宽的输出功率工作频率带宽。然而,关于大小,由于高的冲击速度,在尖端和压电装置之间具有间隙的构造产生较高的输出。

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