New Actuator Design
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Summary
An
improved version of the membrane actuator has been designed and
constructed based on our previous diaphragm actuator. It consists of
ferromagnetic shape memory alloy composite (FSMA) diaphragm and an
electromagnet system. The actuation mechanism of the membrane actuator
is a hybrid mechanism. The high momentum airflow will be produced by the
oscillation of the circular FSMA composite diaphragm driven by
electromagnets close to its resonance frequency. This membrane actuator
is designed for the active flow control technology on airplane wings.
The active flow control (AFC) technology has been studied and shown that
it can help aircraft improve aerodynamic performance and jet noise
reduction. AFC can be achieved by a synthetic jet actuator injecting
high momentum air into the airflow at the appropriate locations on
aircraft wings. Due to large force and martensitic transformation on the
FSMA composite diaphragm, the membrane actuator can produce 190 m/s
synthetic jets at 220 Hz. A series connection of several membrane
actuators is proposed to construct a synthetic jet actuator package for
distributing synthetic jet flow along the wing span.
(a)
Schematic of the membrane actuator (b) the synthetic jet flow created by
the oscillation of the FSMA composite diaphragm
Related publications
- J. Wang, C, Xu, M, Taya, and Y. Kuga, "Flemion
based actuator with ionic liquid as solvent", Smart Materials and
Structures, 2006 in press.
- J. Wang, C, Xu, M, Taya, and Y. Kuga,
"Mechanical stability optimization of Flemion-based composite
artificial muscles by means of proper solvent", Journal of Material
Research, 21 (8) 2018-2022, 2006.
- Y. Liang, Y. Kuga, and M. Taya, "Design
of membrane actuator based on ferromagnetic shape memory alloy
composite for synthetic jet applications," Sensors and
Actuators, A: Physical, vol. 125, no. 2, pp. 512-518, January
2006.
- Y. Liang, Y. Kuga, and M. Taya, "Design
of synthetic jet actuator based on FSMA composite," SPIE:
Smart Structure and Materials, San Diego, CA, March 9 2005.
- Y. Liang, M. Taya, and Y. Kuga, "Design
of membrane actuators based on ferromagnetic shape memory alloy
composite for the synthetic jet actuator," SPIE: Smart
Structure and Materials, San Diego, CA, March 15-18, 2004.
- M. L. Guilly, C. Xu, M. Taya, and Y. Kuga,
"Micro actuator array based on ionic polymer with patterned
self-assembled gold electrode," NSTI Nanotechnology Conference
and Trade Show, Boston, MA, March 7-11, 2004.
Sponsored by NSF??
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