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|Document Type: ||Article|
|Title: ||Development of piezoelectric actuated mechanism for flapping wing micro-aerial
|Authors: ||Lal Kummari, K.|
Guo, Shijun J.
|Issue Date: ||2010|
|Citation: ||K. Lal Kummari, D. Li, S. Guo, and Z. Huang. Development of piezoelectric actuated mechanism for flapping wing micro-aerial. Advances in Applied Ceramics, 2010, Vol. 109, no. 3, pp175-179.
|Abstract: ||A piezoelectric actuated two-bar two-flexure motion amplification mechanism for
flapping wing micro-aerial vehicle application has been investigated. f(r)*A as
an optimisation criterion has been introduced where f(r) is its fundamental
resonant frequency of the system and A the vibration amplitude at the wing tip,
or the free tip deflection at quasi-static operation. This criterion can be used
to obtain the best piezoelectric actuation mechanism with the best energy
transmission coefficient for flapping wing micro-aerial vehicle applications,
and is a measurable quantity therefore can be compared with experimental
results. A simplified beam model has been developed to calculate the fundamental
resonant frequency for the full system consisted of piezoelectric actuator,
motion amplification mechanism and the attached wing and the calculated values
were compared with the measured results. A clear trend of the criteria f(r)*A
varying with the two-flexure dimension, stiffness and setting angle have been
obtained from the measured data and also the predicted results as a guideline
for optimal design of the system.|
|Appears in Collections:||Staff publications - School of Applied Sciences|
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