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.
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. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(19): 258-265.
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