光学 精密工程, 2013, 21 (2): 342, 网络出版: 2013-02-26   

基于圆弧限位的压电发电装置

Piezoelectric energy generator based on deflection-limiting circular arc
作者单位
1 浙江师范大学 数理与信息工程学院, 浙江 金华 321004
2 浙江师范大学 精密机械研究所, 浙江 金华 321004
摘要
提出一种基于圆弧限位压电发电装置来提高发电能力及可靠性。介绍了该装置的结构及工作原理, 建立了其机电能量转换模型。通过模拟仿真分析获得了压电振子厚度比(基板与总厚度比)对最小限位圆弧半径及能量、及压电振子厚度和限位圆弧半径对电压及能量的影响规律。结果表明, 最小限位圆弧半径随厚度比的增加而线性减小, 且存在共同的最佳厚度比(0.35)使不同厚度压电振子的输出电压和能量最大; 在最佳厚度比时, 输出电压和能量随压电振子厚度增加或限位圆弧半径降低而增加。制作了一组限位圆弧半径不等的发电装置, 并进行了相关试验测试。结果表明, 压电振子的最大输出电压(变形量)仅与限位圆弧半径有关, 故采用最小限位圆弧半径可同时获得最大的发电能力和较高的可靠性。
Abstract
A piezoelectric energy generator with a Deflection-limiting Circular Arc (DLCA) was presented to enhance its generated energy and reliability. The structure and working principle of the piezoelectric generator were introduced and an energy conversion model for the piezoelectric generator was established.By simulation, the influence of thickness ratio of the substrate thickness to the total thickness of the piezo-cantilever on the minimal radius of DLCA as well as the generated energy, and that of total thickness of the piezo-cantilever and the radius of DLCA on the generated voltage as well as electrical energy were obtained. The analytical results show that the minimal radius of the DLCA decreases linearly with the increasing of thickness ratio, and there is a shared optimal thickness ratio(0.35) for piezoelectric generators with different total thicknesses to achieve maximal output voltage and energy. Several piezoelectric generators with different radii of DLCA were fabricated and tested. The results show that the maximal voltage (displacement) of the piezoelectric generator depends mainly on the radii of DLCA. When a minimal radius of DLCA is set, both the maximal electrical energy and higher reliability can be achieved.

王淑云, 阚君武, 王鸿云, 凌荣华, 杨振宇, 蒋永华, 张忠华. 基于圆弧限位的压电发电装置[J]. 光学 精密工程, 2013, 21(2): 342. WANG Shu-yun, KAN Jun-wu, WANG Hong-yun, LING Rong-hua, YANG Zhen-yu, JIANG Yong-hua, ZHANG Zhong-hua. Piezoelectric energy generator based on deflection-limiting circular arc[J]. Optics and Precision Engineering, 2013, 21(2): 342.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!