Structure design of piezoelectric fans and research on influence of parameters

被引：0
|
作者：
Kong Y. [1 ]
Li M. [1 ]
Xin Q. [1 ]
机构：
[1] School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing
来源：
Li, Min (limin@buaa.edu.cn) | 1977年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 42期
关键词：
Influence of parameters; Moving-grid; Numerical simulation; Piezoelectric fan; Wind velocity;
D O I：
10.13700/j.bh.1001-5965.2015.0567
中图分类号：
学科分类号：
摘要：
A piezoelectric fan mainly consists of vibrating plate and actuator made by piezoelectric material. Vibrating plates are driven by actuators to cause fluid motion, which is a new kind of device for removal of heat. The purpose of this research is to investigate the influence of several parameters on the performance of piezoelectric fans and give advice to the design of piezoelectric fans. The method of computational fluid dynamics is used in this research to simulate the development of piezoelectric fan's flow field. Three parameters are studied including flexural modes of vibrating plates, double-plate orientation and phase difference between two plates. The results are as follows: the frequency of actuator should be equal to the fundamental resonance frequency of vibrating plate; for the models with two vibrating plates, the best phase difference is π (plates oriented in vertical direction) and 0.8π (plates oriented in horizontal direction). The cause of parameter influence is presented through analyzing the development of the flow field. © 2016, Editorial Board of JBUAA. All right reserved.
引用
收藏
页码：1977 / 1985
页数：8
相关论文
共 17 条
  • [1] Toda M., Theory of air flow generation by a resonant type PVF2 bimorph cantilever vibrator, Ferroelectrics, 22, 1, pp. 911-918, (1978)
  • [2] Kim Y.H., Wereley S.T., Chun C.H., Phase-resolved flow field produced by a vibrating cantilever plate between two endplates, Physics of Fluids (1994-present), 16, 1, pp. 145-162, (2003)
  • [3] Kimber M., Garimella S.V., Raman A., Local heat transfer coefficients induced by piezoelectrically actuated vibrating cantilevers, Journal of Heat Transfer, 129, 9, pp. 1168-1176, (2007)
  • [4] Kimber M., Garimella S.V., Raman A., An experimental study of fluidic coupling between multiple piezoelectric fans, 10th Intersociety Conference on Thermal and Thermomechanical Phenomena and Emerging Technologies in Electronic Systems, ITherm 2006, pp. 333-340, (2006)
  • [5] Yoo J.H., Hong J.I., Cao W., Piezoelectric ceramic bimorph coupled to thin metal plate as cooling fan for electronic devices, Sensors and Actuators A: Physical, 79, 1, pp. 8-12, (2000)
  • [6] Wu T., Ro P.I., Heat transfer performance of a cooling system using vibrating piezoelectric beams, Journal of Micromechanics and Microengineering, 15, 1, pp. 213-220, (2005)
  • [7] Florio L.A., Harnoy A., Combination technique for improving natural convection cooling in electronics, International Journal of Thermal Sciences, 46, 1, pp. 76-92, (2007)
  • [8] Acikalin T., Garimella S.V., Raman A., Et al., Characterization and optimization of the thermal performance of miniature piezoelectric fans, International Journal of Heat and Fluid Flow, 28, 4, pp. 806-820, (2007)
  • [9] Acikalin T., Wait S.M., Garimella S.V., Et al., Experimental investigation of the thermal performance of piezoelectric fans, Heat Transfer Engineering, 25, 1, pp. 4-14, (2004)
  • [10] Schmidt R.R., Local and average transfer coefficients on a vertical surface due to convection from a piezoelectric fan, Proceedings of the Intersociety Conference on Thermal Phenomena in Electronic Systems, pp. 41-49, (1994)
12