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On-Line Flutter Prediction Tool for Wind Tunnel Flutter Testing using Parameter…

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2011 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
ZONA Technology, Inc.
9489 E. Ironwood Square Drive Scottsdale, AZ 85258-4578
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Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
Phase 2
Fiscal Year: 2011
Title: On-Line Flutter Prediction Tool for Wind Tunnel Flutter Testing using Parameter Varying Estimation Methodology
Agency: NASA
Contract: NNX11CA32C
Award Amount: $599,994.00


ZONA Technology, Inc. (ZONA) proposes to develop an on-line flutter prediction tool using the parameter varying estimation (PVE) methodology, called the PVE Toolbox, to ensure the flight safety during the flight flutter test and to prevent the damage to the wind tunnel hardware from the structural failure of the flutter model during wind tunnel flutter test. This tool can be applied to rapidly identify parameters, such as modal damping and frequency from test data measured at pre-flutter flight/wind tunnel conditions, then subsequently to assess the flutter boundary of aircraft/wind tunnel model in real time. In this PVE Toolbox, several system identification techniques are employed to consistently estimate the damping/frequency of the physical modes, followed by the implementation of Zimmerman-Weissenburger flutter margin, damping trends extrapolation, linear parameter varying modeling combined with mu-analysis, and thin plate interpolation method for flutter boundary prediction. Seamlessly integration of the PVE Toolbox into IADS (a real-time flight test data acquisition software system) will significantly improve the on-line flutter prediction capability of the PVE Toolbox. This robust, production-ready, and flight test demonstrated PVE Toolbox will provide flight/wind tunnel test engineers an on-line flutter prediction capability in the control room for decision-making during flight/wind tunnel flutter tests.

Principal Investigator:

Jie Zeng
Principal Investigator

Business Contact:

Jennifer Scherr
Business Official
Small Business Information at Submission:

ZONA Technology, Inc.
9489 East Ironwood Square Drive Scottsdale, AZ 85258-4578

EIN/Tax ID: 860540628
Number of Employees:
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No