To improve piezoelectric harvesting efficiency of Cymbal, optimization design of Cymbal parameters was studied with the method of Taguchi’s orthogonal experiment. The effective factors of piezoelectric harvesting property were firstly analyzed. The orthogonal experiment schedule was then designed. The finite element model of Cymbal was built via ASPL tool in ANSYS software and static analysis was done. The experimental results were gotten with developed program. The optimization level of each factor was gained. Under the synthetical optimization level of each design factor, the piezoelectric analysis was tested and the open voltage of 236.476 V was revealed with improving 35.73% than the maximum voltage of 174.228 V in the orthogonal experiment. The average voltage of 229.98 V was measured with the manufactured optimized Cymbal structure design. The relative error was 2.54% between simulation and measured data. It indicated that the optimization design schedule was reasonable. Cymbal harvester with the optimized parameters could scavenge larger voltage.
References
[1]
Kim, H.W., Priya, S., Uchino, K. and Robert, E. (2005) Piezoelectric Energy Harvesting under High Pre-Stressed Cyclic Vibrations. Journal of Electroceramics, 15, 27-34. http://dx.doi.org/10.1007/s10832-005-0897-z
[2]
Pan, Z.M. and Liu, B. (2006) Mathematical Model of Cymbal-Type Piezoelectric Transducers. China Mechanical Engineering, 17, 283-286.
[3]
Guo, Z.Y., Ye, M., Cheng, B., Bai, Z.F. and Cao, B.G. (2007) Influence of Shape Parameters on Electricity Generation by Cymbal Transducer. Mechanical Science and Technology, 26, 1454-1457.
[4]
Lu, Y.G. and Yan, Z.F. (2013) Finite Element Analysis on Energy Harvesting with Cymbal Transducer. Journal of Vibration and Shock, 32, 157-162.
[5]
Sun, C.H., Shang, G.Q. and Yu, J. (2011) FEM Analysis of Cymbal Transducer for Electricity Generation. Mechanical Science and Technology, 30, 138-141.
[6]
Ochoa, P., Pons, J.L., Villegas, M. and Fernandez, J.F. (2005) Mechanical Stress and Electric Potential in Cymbal Piezoceramics by FEA. Journal of the European Ceramic Society, 25, 2457-2461.http://dx.doi.org/10.1016/j.jeurceramsoc.2005.03.082
[7]
Xing, Z.B., Sun, C.L., Liu, G.G. and Zhao, X.Z. (2007) An Experimental Study of Cymbal Transducers. Piezoelectrics & Acoustooptics, 29, 273-275.
[8]
Wu, L., Chure, M.-C., Wu, K.-K. and Tung, C.-C. (2014) Voltage Generated Characteristics of Piezoelectric Ceramics Cymbal Transducer. Journal of Materials Science and Chemical Engineering, 2, 32-37.http://dx.doi.org/10.4236/msce.2014.210005
