...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Information Technology >An Experimental Study of Downstream Structures on the Flow-Induced Vibrations Energy Harvester Performances
【24h】

An Experimental Study of Downstream Structures on the Flow-Induced Vibrations Energy Harvester Performances

机译：下游结构对流致振动能量采集器性能的实验研究

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents an experimental investigation for the characteristics of an energy harvesting device exploiting flow-induced vibration in a wind tunnel. A stationary bluff body is connected with a downstream tip body via an aluminium cantilever beam. Various lengths of aluminium cantilever beam and different shapes of downstream tip body are considered. The results show that the characteristics of the energy harvester’s vibration depend on both the length of the aluminium cantilever beam and the shape of the downstream tip body. The highest ratio between vibration amplitude and bluff body diameter was found to be 1.39 for an energy harvester with a symmetrical triangular tip body and L/D1 = 5 at 9.8 m/s of flow speed (Re = 20077). Using this configuration, the electrical energy was extracted with a polyvinylidene fluoride (PVDF) piezoelectric beam with different load resistances, of which the optimal value could be found on each Reynolds number. The highest power output was found to be 3.19 µW, at 9.8 m/s of flow speed (Re = 20077) and 27 M? of load resistance.
机译：本文针对利用风洞中的流致振动的能量收集装置的特性进行了实验研究。固定的非流线形体通过铝悬臂梁与下游的尖端体连接。考虑了各种长度的铝悬臂梁和下游末端体的不同形状。结果表明，能量收集器的振动特性取决于铝悬臂梁的长度和下游尖端主体的形状。对于具有对称三角形尖端主体且在9.8 m / s的流速下L / D1 = 5的能量采集器，振动幅度与钝体直径之间的最高比率为1.39（Re = 20077）。使用此配置，可以用具有不同负载电阻的聚偏二氟乙烯（PVDF）压电梁提取电能，在每个雷诺数上都可以找到最佳值。发现最高功率输出为3.19 µW，流速为9.8 m / s（Re = 20077）和27 M?。负载电阻。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号