SMA Active Rotor Trim Tab

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911W6-04-C-0038
Agency Tracking Number: A032-0031
Amount: $119,976.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: A03-067
Solicitation Number: 2003.2
Small Business Information
200 Boston Avenue Suite 1000, Medford, MA, 02155
DUNS: 786127522
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Carl Blaurock
 Senior Engineer
 (781) 306-0609
Business Contact
 Petra Botha
Title: Chief Financial Officer
Phone: (781) 306-0609
Research Institution
Midé proposes to build an on-blade active trim tab using Shape Memory Alloys. SMAs are active materials that undergo a phase change from martensitic to austenitic form when heated. The materials can be trained to a specific shape in the austenitic phase. When heated, the material will recover the trained shape. Since the modulus in the austenitic phase is relatively high, the force exerted is large. The specific energy in the device is very high, and the form factor is small, since the actuator consists in essence of a wire bundle. The proposed actuator is a self-locking device so that no power is required to hold a trim tab set point, and the failure modes are benign. A fixed-frame control system is used to set tab position, so that the system requires no fixed/rotating frame data transfer.

* Information listed above is at the time of submission. *

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