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首页> 外文会议>Conference on active and passive smart structures and integrated systems >On the Use of Nonlinear Solitary Waves for Energy Harvesting
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On the Use of Nonlinear Solitary Waves for Energy Harvesting

机译：关于使用非线性孤波进行能量收集

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In the last decade there has been an increasing attention on the use of highly- and weakly- nonlinear solitary waves in engineering and physics. These waves can form and travel in nonlinear systems such as one-dimensional chains of spherical particles. One engineering application of solitary waves is the fabrication of acoustic lenses, which are employed in a variety of fields ranging from biomedical imaging and surgery to defense systems and damage detection. In this paper we propose to couple an acoustic lens to a wafer-type lead zirconate titanate transducer (PZT) to harvest energy from the vibration of an object tapping the lens. The lens is composed of a circle array made of chains of particles in contact with a polycarbonate material where the nonlinear waves coalesce into linear waves. The PZT located at the designed focal point converts the mechanical energy carried by the stress wave into electricity to power a load resistor. The performance of the designed harvester is compared to a conventional cantilever beam, and the experimental results show that the power generated with the nonlinear lens has the same order of magnitude of the beam.
机译：在过去的十年中，人们越来越关注在工程和物理领域中使用高非线性和弱非线性孤立波的情况。这些波可以在非线性系统（例如球形颗粒的一维链）中形成并传播。孤波的一种工程应用是制造声透镜，该透镜在从生物医学成像和外科手术到防御系统和损伤检测的各个领域中得到使用。在本文中，我们建议将声透镜耦合到晶片型锆钛酸铅钛酸盐换能器（PZT），以从敲击透镜的物体的振动中获取能量。该透镜由一个圆形阵列组成，该圆形阵列由与聚碳酸酯材料接触的颗粒链组成，其中非线性波会聚集成线性波。位于设计焦点的PZT将应力波携带的机械能转换为电能，以为负载电阻器供电。将设计的收割机的性能与传统的悬臂梁进行了比较，实验结果表明，使用非线性透镜产生的光焦度与光束的量级相同。

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