压电与声光, 2023, 45 (3): 414, 网络出版: 2023-12-05  

锯齿型压电梁的电响应分析

Analysis of Electrical Response of a Sawtooth Piezoelectric Beam
作者单位
南昌航空大学 航空制造工程学院, 江西 南昌330063
摘要
压电振子的工作频带宽度是影响压电振动能量收集器发电效率的关键指标。该文旨在分析一种锯齿型阵列式压电振动能量收集器结构模态频率, 为压电振子的动力学设计提供参考。首先, 基于弹性梁振动理论, 推导了锯齿型压电梁的动力学方程, 并分析了影响压电梁模态频率的因素。然后, 通过COMSOL建立锯齿形压电梁的有限元模型, 分析了其频响特性、功率与负载阻抗匹配特性及加速度依赖性。最后, 通过实验研究测试了锯齿型压电梁的电压幅频特性曲线, 验证了理论分析与仿真模拟结果的合理性。结果表明, 锯齿型阵列式压电振动能量收集器能够有效地拓宽工作频带, 进而提高发电效率。
Abstract
The working frequency band width of piezoelectric vibrator is a key index that affects the efficiency of piezoelectric vibratory energy collector. In this paper, the modal frequency of an array piezoelectric vibration energy collector is analyzed, which can be used as a reference for the dynamic design of piezoelectric vibrators. Firstly, based on the vibration theory of the elastic beam, the dynamic equations of the saw-tooth piezoelectric beam are derived, and the factors affecting the modal frequency are analyzed. Then, the finite element model of the saw-tooth piezoelectric beam is established by COMSOL, and its frequency response, power and load impedance matching characteristic and acceleration dependence are analyzed. Finally, the voltage amplitude-frequency characteristic curve of the saw-tooth piezoelectric beam is tested by experimental research, which verifies the rationality of the theoretical analysis and simulation results. The results show that the saw-tooth array piezoelectric vibration energy collector can effectively broaden the working frequency band and improve the power generation efficiency.
参考文献

[1] WU N,BAO B,QUAN W.Review on engineering structural designs for efficient piezoelectric energy harvesting to obtain high power output[J].Engineering Structures,2021,235(10):112068.

[2] 刘祥建, 陈仁文.压电振动能量收集装置研究现状及发展趋势[J].振动与冲击, 2012, 31(16): 169-176.

[3] GUAN M J,LIAO W H.On the efficiencies of piezoelectric energy harvesting circuits towards storage device voltages[J].Smart Materials and Structures,2007,16(2):498-505.

[4] 邹丽, 邹鹏君.基于压电材料压电效应能量收集装置的研究与发展前景[J].内燃机与配件, 2019(20): 211-212.

[5] WANG J,IN X,LIU Z,et al.Experimental study on fatigue degradation of piezoelectric energy harvesters under equivalent traffic load conditions[J].International Journal of Fatigue,2021,150(8):106320.

[6] ROUNDY S,WRIGHT P K,PISTER K S.Micro-electrostatic vibration to electricity converters[C]//New Orleans,Louisiana:Proceedings of ASME International Mechanical Engineering Congress&Exposition, ASME,2002:1-10.

[7] LI L,XU J,LIU J,et al.Recent progress on piezoelectric energy harvesting:structures and materials[J].Advanced Composites and Hybrid Materials,2018,1:478-505.

[8] 代显智, 张章, 刘小亚, 等.非线性宽频振动能量采集技术的研究进展[J].中国科学: 技术科学, 2016, 46(8): 791-807.

[9] XIE X,WANG Z,LIU D,et al.An experimental study on a novel cylinder harvester made of L-shaped piezoelectric coupled beams with a high efficiency[J].Energy,2020,212:118752.

[10] 丁晓亮.非线性M形梁压电振动能量收集装置的设计与实验研究[D].青岛:青岛大学,2021.

[11] 张旭辉, 正鹏, 吴中华, 等.新型双稳态压电振动俘能系统的理论建模与实验研究[J].振动工程学报, 2019, 32(1): 10.

[12] UPADRASHTA D,YANG Y.Trident-shaped multimodalpiezoelectric energy harvester[J].Journal of Aerospace Engineering,2018,31(5):04018070.

[13] LIU H,LEE C,KOBAYASHI T,et al.Piezoelectric MEMS based wideband energy harvesting systems using a frequency up-conversion cantilever stopper[J].Sensors & Actuators A Physical,2012,186:242-248.

[14] 冯逸亭, 刘文光, 方孟翔, 等.压电振动能量收集器的建模与响应分析[J].压电与声光, 2022, 44(1): 62-67.

[15] 秦利锋, 韩超然, 杨磊, 等.一种基于碰撞的压电宽频能量收集装置[J].厦门大学学报(自然科学版), 2014, 53(4): 502-507.

[16] 吴兴意, 刘文光, 胡剑波, 等, 高铭阳.基于电压的压电悬臂梁剩余寿命预测压[J].振动与冲击, 2022, 41 (7): 223-227.

[17] 马天兵, 陈南南, 吴晓东, 等.Z型压电振动能量收集装置[J].光学精密工程, 2019, 27(9): 1968-198.

[18] 王立安, 赵建昌, 李奎奎.重载汽车行驶引起环境振动的实测研究[J].兰州交通大学学报, 2020, 39(5): 20-23.

鹿青山, 刘文光, 成龙, 高铭阳, 冯逸亭, 陈红霞. 锯齿型压电梁的电响应分析[J]. 压电与声光, 2023, 45(3): 414. LU Qingshan, LIU Wenguang, CHEGN Long, GAO Mingyang, FENG Yiting, CHEN Hongxia. Analysis of Electrical Response of a Sawtooth Piezoelectric Beam[J]. Piezoelectrics & Acoustooptics, 2023, 45(3): 414.

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!