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Buffet Control of the F-22 Using an Enhanced Distributed Actuation System

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 36257
Amount: $99,941.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 1997
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
215 First St., Cambridge, MA, 02142
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Ronald L Spangler Phd
 (617) 577-0700
Business Contact
Phone: () -
Research Institution
Unsteady buffet forces excite the vertical tails of aircraft flying at high angles of attack and cause excessive stress and vibration in the tail structure. This results in increased fatigue which ultimately reduces aircraft life. It has been shown by ACX that distributed piezoceramics can significantly reduce the buffet loads on the tail structure of an F/A-18. ACX proposes to develop a similar buffet suppression system for the F-22 aircraft. Additionally, enhancements can be made to the component hardware that will benefit both the F/A-18 and F-22 buffet load alleviation systems. These enhancements can benefit any distributed piezoceramic actuation system used in many applications from automobiles to aircraft. Furthermore, these enhancements are required for this technology to be used in aerospace applications where weight, size, and power consumption are critical to performance. ACX proposes to investigate two identified technologies which will help lead towards a realization of a flght ready system. The first is the development of an enhanced strain actuator which uses higher electromechanical coupling coefficients to produce more actuation force for a given actuator mass.

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

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