...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Smart Materials & Structures >Size optimization of conical piezoelectric energy harvesters
【24h】

Size optimization of conical piezoelectric energy harvesters

机译：锥形压电能量收集器的尺寸优化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The optimal design of piezoelectric patches on a piezoelectric conical energy harvester is presented in this study. Based on the equivalent voltage source model, the power of the resistance load is derived firstly. The origin location of the piezoelectric patch is set at the peak points of the modal voltage. The piezoelectric patch is in the region formed by the zero lines where the modal voltage is zero. The location of the peak points and the zero lines are determined by the spatial distribution of the modal voltage and the open-circuit voltage. Three parameters are chosen to locate the piezoelectric patch, i.e. the circumferential width, the length from the origin to the minor end and the length from the origin to the major end. Solving the extremum of the power equation with respect to the three parameters yields the optimal size of the piezoelectric patch. Case studies are given to evaluate the power of the optimal piezoelectric energy harvester. The results indicate that with the origin located at the optimal location, the power of resistance load firstly increases with the width and the lengths until the maximum and then decreases. The optimal width of the piezoelectric patch is 75% of the half-wave length for all of the evaluated modes.
机译：这项研究提出了在压电锥形能量收集器上压电贴片的最佳设计。基于等效电压源模型，首先推导了电阻负载的功率。压电贴片的原点位置设置在模态电压的峰值点。压电贴片位于由零线形成的区域，其中模态电压为零。峰值点和零线的位置取决于模态电压和开路电压的空间分布。选择三个参数来定位压电贴片，即圆周宽度，从原点到次要末端的长度以及从原点到主要末端的长度。相对于三个参数求解功率方程的极值可得出压电贴片的最佳尺寸。通过案例研究来评估最佳压电能量采集器的功率。结果表明，在原点位于最佳位置的情况下，电阻负载的功率首先随着宽度和长度的增加而增大，直到最大值，然后减小。对于所有评估模式，压电贴片的最佳宽度为半波长度的75％。

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