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Volume 42 Issue 9
Sep.  2016
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Journal of Beijing University of Aeronautics and Astronautics  > 2016  >  42(9): 1977-1985.
KONG Yue, LI Min, XIN Qingliet al. Structure design of piezoelectric fans and research on influence of parameters[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(9): 1977-1985. doi: 10.13700/j.bh.1001-5965.2015.0567(in Chinese)
Citation: KONG Yue, LI Min, XIN Qingliet al. Structure design of piezoelectric fans and research on influence of parameters[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(9): 1977-1985. doi: 10.13700/j.bh.1001-5965.2015.0567(in Chinese)
shu

Structure design of piezoelectric fans and research on influence of parameters

doi: 10.13700/j.bh.1001-5965.2015.0567

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 02 Sep 2015
  • Publish Date: 20 Sep 2016
    Abstract
  • 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.

     

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