Effect of Natural Frequency of Rotational Electret Energy Harvester for Human Walking
Effect of Natural Frequency of Rotational Electret Energy Harvester for Human Walking
复制标题
旋转驻极体能量采集器固有频率对人类行走的影响
DOI：
10.1109/powermems49317.2019.20515807686
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Y. Suzuki
中科院分区：
文献类型：
--
作者：
T. Miyoshi;Y. Tanaka;Y. Suzuki
摘要：本文研究了旋转能量采集器（EH）的固有频率对人类行走过程中发电特性的影响。基于使用臂摆动模型的机电分析，发现输出功率受到重力引起的转子固有频率的显着影响。制作了具有不同转子固有频率的旋转驻极体能量采集器的原型，并使用六轴并联机器人对其输出功率进行了表征，该机器人可以模拟不同行走速度下的手臂摆动运动。结果发现，通过将转子的固有频率调整为 1 Hz，可以在较宽的行走速度范围内获得更高的输出功率。
AbstractIn this paper, we investigate the effect of natural frequency of rotational energy harvester (EH) on power generation characteristics during human walking. Based on electromechanical analysis using the arm swing model, it is found that the output power is significantly affected by the natural frequency of the rotor due to the gravitational force. Rotational electret energy harvesters with different natural frequency of the rotor were prototyped, and their output power were characterized by using a 6-axis parallel link robot, which can mimic the arm swing motion for different walking speeds. It is found that, by adjusting the natural frequency of the rotor at 1 Hz, much higher output power has been obtained for a wide range of the walking speeds.