Control Surface Buffet Load Measurement

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-09-C-0232
Agency Tracking Number: N091-013-0610
Amount: $149,953.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2009
Solicitation Topic Code: N091-013
Solicitation Number: 2009.1
Small Business Information
13766 S. Hawthorne Blvd., Hawthorne, CA, 90250
DUNS: 028281020
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Brian Danowsky
 Senior Research Engineer
 (310) 679-2281
Business Contact
 Thomas Myers
Title: Senior Research Engineer
Phone: (310) 679-2281
Research Institution
High performance aircraft experience repeated loads that can vary greatly both in frequency and amplitude depending on such factors as flight condition, maneuvering, and aeroelastic characteristics. Loads are monitored throughout the lifetime of military aircraft and used to estimate remaining structural life. Current airframe sensors are unsuitable for measuring unsteady aerodynamic buffet loads, which can be of significant amplitude and occur at frequencies that excite the aeroelastic dynamics, dramatically decreasing fatigue life. Systems Technology, Inc. and Moog, Inc. propose the Actuator Load Computing System (ALCS), an elegant and logistically attractive solution to this problem that employs onboard flight control actuators as load sensors capable of measuring both high frequency and quasi-steady loads. Since actuators directly measure the forces exerted on a control surface, these loads can be used as a robust reference gauge for what is occurring at the wing or tail surface as a whole. ALCS will leverage a novel frequency response identification technique, Narrowband Signature (NBS), which has proven to be successful with very short duration inputs. Since actuators are employed with all of the control surfaces, ALCS immediately extends itself for use with wings, vertical tails, and horizontal tails without the need for additional hardware.

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

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government