A compound pendulum piezoelectric energy harvester (CPPEH) with vortex-induced vibration (VIV) is proposed to convert the water flow energy to electricity. The harvester is composed of a piezoelectric cantilever beam and a parallel cylinder, which has the advantages of exempting from encapsulation insulation, greater vibration response and easy to generate vortex-induced resonance at low-speed water flow. The effects of water velocity on hydrodynamic response and energy harvesting performance of the CPPEH are investigated by simulation method of coupled fluid-structure-electric and experiment test. It is found that output power first increases as the load resistance increases and maximum power output is obtained when reaching the optimal resistance, and then output power decreases. Vibration amplitude and output power versus velocity have the same change regulation and maximum power output is obtained at vortex-induced resonance. The vibration frequency is overall increasing with the increase of velocity. However, because of “lock-in” of the vortex-induced vibration, vibration frequencies are mainly equal to the nature frequency of the CPPEH during the region of vortex-induced resonance. Output power of the harvester is enhanced with the increase of cylinder diameter, while the velocity of vortex-induced resonance is increased at the same time.
宋汝君1，单小彪2，范梦龙2，谢 涛2. 涡激振动型水力复摆式压电俘能器的仿真与实验研究[J]. 振动与冲击, 2017, 36(19): 78-83.
SONG Rujun1, SHAN Xiaobiao2, FAN Menglong2, XIE Tao2. Simulation and Experimental Study of a Hydrodynamic Compound Pendulum Piezoelectric Energy Harvester with Vortex-induced Vibration. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(19): 78-83.
[1] 袁江波, 谢涛, 单小彪，等. 压电俘能技术研究现状综述[J]. 振动与冲击, 2009,28(10):36-42.
YUAN Jiangbo, XIE Tao, SHAN Xiaobiao, et al. A review of current situation for piezoelectric energy harvesting[J]. Journal of vibration and shock, 2009(10):36-42.
[2] SONG Rujun, SHAN Xiaobiao, LV Fengchi, et al. A Novel Piezoelectric Energy Harvester Using the Macro Fiber Composite Cantilever with a Bicylinder in Water[J]. Applied Sciences, 2015,5(4):1942-1954.
[3] DAI Huliang, Abdelkefi A., WANG Lin. Piezoelectric Energy Harvesting from Concurrent Vortex-Induced Vibrations and Base Excitations[J]. Nonlinear Dynamics, 2014,77(3):967 -981.
[4] DAI Huliang, ABDELKEFI A., WANG Lin. Theoretical Modeling and Nonlinear Analysis of Piezoelectric Energy Harvesting from Vortex-Induced Vibrations[J]. Journal of Intelligent Material Systems and Structures, 2014,25(14):1861-1874.
[5] DAI Huliang, ABDELKEFI A., YANG Y., et al. Orientation of Bluff Body for Designing Efficient Energy Harvesters from Vortex-Induced Vibrations[J]. Applied Physics Letters, 2016,108(5):053902.
[6] DAI Huliang, ABDELKEFI A., WANG Lin, et al. Time-Delay Feedback Controller for Amplitude Reduction in Vortex-Induced Vibrations[J]. Nonlinear Dynamics, 2014,80(1-2):59-70.
[7] XIE Jinmin, YANG Jiashi, HU Hongping, et al. Piezoelectric Energy Harvester Based on Flow-Induced Flexural Vibration of a Circular Cylinder[J]. Journal of Intelligent Material Systems and Structures, 2011,23(2):135-139.
[8] AKAYDIN H. D., ELVIN N., ANDREOPOULO Y. The Performance of a Self-Excited Fluidic Energy Harvester[J]. Smart Materials and Structures, 2012,21(2):025007.
[9] WANG Junlei., RAN Jingyu, ZHANG Zhien. Energy Harvester Based on the Synchronization Phenomenon of a Circular Cylinder[J]. Mathematical Problems in Engineering, 2014,2014:1-9.
[10] GAO Xiaotong, SHIH W.-H., SHIH W. Y. Flow Energy Harvesting Using Piezoelectric Cantilever with Cylindrical Extension[J]. IEEE Transactions on Industrial Electronics, 2013,60(3):1116 - 1118
[11] MEHMOOD A., ABDELKEFI A., HAJJ M. R., et al. Piezoelectric Energy Harvesting from Vortex-Induced Vibrations of Circular Cylinder[J]. Journal of Sound and Vibration, 2013,332(19):4656-4667.
[12] ZHAO Liya, TANG Lihua, YANG Yaowen. Comparison of modeling methods and parametric study for a piezoelectric wind energy harvester[J]. Smart Materials & Structures, 2013, 22(12):125003-125014.
