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首页> 外文会议>ASME international mechanical engineering congress and exposition >ROTARY MULTIMODAL ENERGY HARVESTING DEVICE
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ROTARY MULTIMODAL ENERGY HARVESTING DEVICE

机译：旋转式多模态能量收集装置

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摘要

In this paper, a new multimodal energy harvesting device consisting of two transduction mechanisms and having unique properties at various operating modes is presented. The hybrid system includes electromagnetic and piezoelectric energy harvesting technologies, and uses linear motion and impact forces from human motion for energy harvesting. The device is based on an unbalanced electromagnetic rotor made of three beams of piezoelectric material that have magnets attached to the ends. The device is to be worn on the legs or arms of a person. Linear motion, from the arms or legs swinging, causes the rotor to spin and the magnets to pass over the coils. Impact forces, from stepping, induce stress on the piezoelectrics which generates voltage across the electrode. The results of several numerical simulations are presented. For the piezoelectric beams, numerical simulations were done to find the deflection, stress, optimum operating frequency, and mode shapes taking into account environmental conditions. For the electromagnetic generation, numerical simulations were done to find the optimal load resistance and power generation for several different orientations. Other design related issues will also be investigated to fully realize the device in real world applications.
机译：本文提出了一种新型的多峰能量收集装置，该装置由两个换能机制组成，并且在各种操作模式下均具有独特的性能。混合系统包括电磁和压电能量收集技术，并使用线性运动和来自人体运动的冲击力进行能量收集。该设备基于不平衡的电磁转子，该转子由三束压电材料制成，并在其两端附有磁体。该设备应戴在人的腿或手臂上。由于手臂或腿的摆动而引起的线性运动会导致转子旋转，并且磁体会越过线圈。步进产生的冲击力会在压电材料上产生应力，从而在电极上产生电压。给出了几个数值模拟的结果。对于压电梁，进行了数值模拟，以找到挠度，应力，最佳工作频率和考虑环境条件的振型。对于电磁发电，进行了数值模拟，以找到针对几种不同方向的最佳负载电阻和发电。还将研究其他与设计有关的问题，以在现实应用中完全实现该设备。

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