IDENTIFICATION

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 2808
Amount: $50,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1985
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
101 University Avenue, Palo Alto, CA, 94301
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 DR. ROBERT A. WALKER
 PRINCIPAL INVESTIGATOR
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
REAL-TIME FLUTTER PREDICTION INCLUDING CLOSE MODES CAN BE EFFECTIVELY ESTIMATED FROM TURBULENCE OR ON-BOARD EXCITATIONWITH AN EXTENDED KALMAN FILTER(EKF) APPROACH. THE THE PHYSICALLY BASED MODEL FORM ENABLES PREDICTION OF THE DAMPING RATE AS WELL AS DAMPING GIVING A TIME TO UNSTABILITYESTIMATE WITH IT'S VARIANCE. THE APPROACH IS RECURSIVE AND CAN OPERATE A SYNNCCHRON AND CAN OPERATE A SYNCHRONOUSLY TO DROP ATA OUTLINERS AND HENCE IS QUITE ROBUST. IT'S SPEED IS REASONABLE FOR ON-LINEAPPLICATION BUT ALSO CAN BE USED EFFECTIVELY AS AN OFF-LINE ANALYSIS TOOL FOR APPLICATION TO ANY MODEL TESTING SITUATION.

* 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