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
Integrated Systems, Inc.
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.

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