EXPERIMENTAL AND NUMERICAL STUDY OF AERODYNAMIC DAMPING OF A PIEZOELECTRIC FAN

被引：0
|
作者：
Shirzadeh, R. [1 ,2 ]
Guillaume, P. [1 ]
Runacres, M. C. [2 ]
Bidakhvidi, M. Ahmadi [1 ]
机构：
[1] Vrije Univ Brussel, Dept Mech Engn, Pl Laan 2, B-1050 Brussels, Belgium
[2] Erasmushogesch Brussel, Dept Ind Sci & Technol, B-1070 Brussels, Belgium
来源：
ICEM15: 15TH INTERNATIONAL CONFERENCE ON EXPERIMENTAL MECHANICS | 2012年
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D O I：
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Piezoelectric fans vibrating in a fluid are encountered in numerous aeronautical applications like flapping wings of micro air vehicles (MAVs). In this work, the aerodynamic damping of a piezoelectric fan is studied to predict the effect of the surrounding air in the vacuum and ambient conditions. The resonant frequency and damping values are computed at different oscillation amplitudes in both vacuum and ambient conditions. Vibration measurements were done using a Scanning Laser Doppler Vibrometer (SLDV). We show that the aerodynamic damping has a nonlinear behavior at different oscillation amplitudes of the piezofan.
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页数：5
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