Distributed Conformal Actuation for Simultaneously Controlling Flow Separation and Transition

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,290.00
Award Year:
2009
Program:
STTR
Phase:
Phase I
Contract:
FA9550-09-C-0029
Agency Tracking Number:
F08A-007-0229
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
MICROMECHATRONICS, INC.
200 Innovation Blvd, Suite 155, State College, PA, 16803
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
169162992
Principal Investigator:
Alfredo Carazo
CEO/President
(814) 861-5688
avc@mmech.com
Business Contact:
Alfredo Vazquez Carazo
CEO/President
(814) 861-5688
avc@mmech.com
Research Institution:
THE PENNSYLVANIA STATE UNIV.
Dennis McLaughlin
229 / 233F Hammond bldg.
Penn State
University Park, PA, 16802
(814) 865-2569
Nonprofit college or university
Abstract
The objective of this proposal is to demonstrate the feasibility of producing a Conformal Actuator Array Active Skin (CAAAS) that can be implanted on the surface of the airfoil to deliver a system that can actively control transition and separation. It will be realized through operation of actuators with unique driving methods as well as recent advances and innovations in piezoelectric actuator technology, i.e. large displacement and blocking force. The actuator thickness will be below 2 mm so it can be distributed on the surface of the airfoil in the form of 2 dimensional arrays. The array will be covered by compliant outer membrane (active skin) to provide conformal actuation. The actuator will be excited by various driving frequencies, displacement, and waveforms to obtain required airflow controllability. Especially, waveform manipulation will induce effects analogous to conventional suctioning and blowing without making holes (conformal actuation). In addition, the array will generate traveling wave both in the transverse and streamwise directions to reduce shear stress and control airflow effectively. The combinatory effects of controlling each actuator and the array will be analyzed and optimized thus producing desired airflow.

* information listed above is at the time of submission.

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