USA flag logo/image

An Official Website of the United States Government

High Authority Airfoil Camber Control Using Shape Memory Alloys

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
28187
Program Year/Program:
1995 / SBIR
Agency Tracking Number:
28187
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
SATCON APPLIED TECHNOLOGY, INC.
1745A West Nursery Rd MS4018 Li, MD -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1995
Title: High Authority Airfoil Camber Control Using Shape Memory Alloys
Agency / Branch: DOD / USAF
Contract: N/A
Award Amount: $79,288.00
 

Abstract:

One advanced structural concept with enormous potential is the active control of wing camber. Current wing designs are compromises at all but one optimal airspeed. The capacity to alter camber as flight conditions change will provide greater lift and maneuverability, reduced dray, increased range, lower fuel consumption, and reduced operating costs. Smart materials such as magnetostrictive Terfenol-D have important advantages such as no bearings, simple construction, low maintenance, and electric operation. Past efforts using smart materials for camber control have been limited by the low energy density of the materials used. Use of shape memory alloys (SMA) has not been explored in depth. The proposed work utilizes the SMA Nitinol because it produces greater than 3% strains while competing "giant" magnetostrictive materials are limited to .15% strain (1,500 parts per million). Large control authority is the enabling feature of the SMA camber actuator. Response of SMA actuators is typically slow because of thermal effects; however, the camber actuator need react only to slow flight regime changes. Various means of SMA camber actuation are proposed including direct drive and SMA composite materials which will be fabricated. Experiments will measure the performance of SMA camber control, and in-service feasibility will be determined.

Principal Investigator:

Ralph C Fenn Phd
6173490185

Business Contact:

Small Business Information at Submission:

Satcon Technology Corp
161 First St Cambridge, MA 02142

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No