
Proceedings Paper
Active control of stiffness and damping of piezoelectric polymer filmsFormat | Member Price | Non-Member Price |
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Paper Abstract
This paper investigates a method for actively controlling the
stiffness and damping provided by piezoelectric films such as may be
used to construct biomimetic skins on small aerial vehicles. The
method being investigated is based on the idea of elasticity control
via piezoelectric coupling, and uses a tunable electronic circuit in
parallel with a polyvinilidene fluoride (PVDF) film. The focus of
the current work is on a fundamental-level understanding of the
elasticity control method, and in particular, on theoretically and
experimentally characterizing the degree of dissipation control
possible with this method.
The paper discusses the theoretical and experimental work so far
which shows encouraging improvements in the dissipation in response
to structural loads. Particular emphasis here is on modeling of the
impulse response of a PVDF membrane. Work so far shows reasonable
agreement between analytical and experimental results. Finally, a
control circuit based on a low-power operational amplifier is seen
to be effective in significantly improving the dissipation rate
available with the PVDF membrane.
Paper Details
Date Published: 22 March 2006
PDF: 10 pages
Proc. SPIE 6168, Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD), 61681R (22 March 2006); doi: 10.1117/12.657456
Published in SPIE Proceedings Vol. 6168:
Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)
PDF: 10 pages
Proc. SPIE 6168, Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD), 61681R (22 March 2006); doi: 10.1117/12.657456
Show Author Affiliations
Umesh A. Korde, South Dakota School of Mines and Technology (United States)
Miles A Wickersham, South Dakota School of Mines and Technology (United States)
Miles A Wickersham, South Dakota School of Mines and Technology (United States)
Stephen Carr, Tristate Univ. (United States)
Christopher H. M. Jenkins, Montana State Univ. (United States)
Christopher H. M. Jenkins, Montana State Univ. (United States)
Published in SPIE Proceedings Vol. 6168:
Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)
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