球形管道内检测器压电能量收集器设计及实验研究

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (19) : 258-265.

论文

刘悦，李一博，芮小博，郑晓雷，黄新敬，李健

作者信息 +

Design and tests for piezoelectric vibration energy harvesting device used by a spherical inner detector in pipeline

LIU Yue, LI Yibo, RUI Xiaobo, ZHENG Xiaolei, HUANG Xinjing, LI Jian

Author information +

文章历史 +

摘要

球形管道内检测器是一种新型的管道安全检测装置，但由于封闭结构中携带的电池有限，限制了其在长输管道中的应用。为了尝试解决该问题，本文提出一种压电振动能量收集结构，将旋转中的机械能转化为电能。为了对结构的性质进行分析，本文利用欧拉-拉格朗日法建立了机电耦合动力学模型。基于该模型的数值仿真与旋转平台实验，结合内检测器在管道中的旋转特征，对能量收集器进行了详细的参数设计与优化。在管道中进行了样机实验，结果证明本收集器在所设计的内检测器工作条件下，可获得12.6V的电压输出，在1.8MΩ负载下可得88.2μW的功率。

Abstract

The spherical inner detector in pipeline is a new type pipeline safety detection device, but the limited battery carried in its closed structure limits its application in long pipelines. Here, to solve this problem, a piezoelectric vibration energy harvesting device was proposed to convert mechanical energy in rotating into electric energy. Euler-Lagrange method was used to establish its electro-mechanical coupled dynamic model. Based on this model, numerical simulation and rotating platform tests were performedto analyze properties of the device. Combining with rotating characteristics of the inner detector in pipeline, the optimal parametric design was done for the energy collector. The prototype was tested in pipelines. Results showed that the designed energy harvesting device used by the inner detector in pipeline under working condition can obtain a voltage output of 12.6 V, and gain a power of 88.2 μW under a load of 1.8 MΩ.

导出引用

刘悦，李一博，芮小博，郑晓雷，黄新敬，李健. 球形管道内检测器压电能量收集器设计及实验研究[J]. 振动与冲击, 2020, 39(19): 258-265

LIU Yue, LI Yibo, RUI Xiaobo, ZHENG Xiaolei, HUANG Xinjing, LI Jian. Design and tests for piezoelectric vibration energy harvesting device used by a spherical inner detector in pipeline[J]. Journal of Vibration and Shock, 2020, 39(19): 258-265

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