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Model Updating Nonlinear System Identification Toolbox

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
72704
Program Year/Program:
2005 / SBIR
Agency Tracking Number:
041184
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
ZONA Technology, Inc.
9489 E. Ironwood Square Drive Scottsdale, AZ 85258-
View profile »
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2005
Title: Model Updating Nonlinear System Identification Toolbox
Agency: NASA
Contract: NND05AA44C
Award Amount: $69,787.00
 

Abstract:

ZONA Technology proposes to develop an enhanced model updating nonlinear system identification (MUNSID) methodology by adopting the flight data with state-of-the-art control oriented techniques. The end product is a flight data enhanced MUNSID/ZAERO toolbox for accurate predictions of flutter and limit cycle oscillation (LCO) instabilities. The enhancement employs control oriented techniques, namely, model uncertainty, linear fractional transformation framework, mu-analysis and nonlinear operators identification, to adopt the emerging aeroelastic flight-test data. This toolbox augments the current match-point solution approach using the mu-analysis method with identified nonlinear operators. The procedure calls for ZAERO's high-fidelity linear aeroelastic model to be tuned quickly with available aeroelastic/aeroservoelastic, AE/ASE, flight data sets, while block-oriented models are used to highlight the underlying nonlinear structure of the AE/ASE system. This framework is capable of accounting for several nonlinearities including those due to aerodynamics, structures, control/actuator, and/or geometry. The toolbox will be used as the next-generation flutterometer to predict the onset of AE/ASE instabilities. Two case studies, simple and complex dynamic ASE systems, are proposed to validate and verified this advanced control-oriented concept. This enabling technology will be invaluable to the flight test community by extending the current industry modeling tools to include

Principal Investigator:

Dario H. Baldelli
4809459988
dario@zonatech.com

Business Contact:

Jennifer Scherr
Business Official
4809459988
jennifer@zonatech.com
Small Business Information at Submission:

Zona Technology, Inc.
7430 E. Stetson Drive, Suite 205 Scottsdale, AZ 85251

EIN/Tax ID: 860540628
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No