Aeroelastic Uncertainty Analysis Toolbox

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,947.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
NNX08CC56P
Award Id:
88101
Agency Tracking Number:
075316
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
13766 South Hawthorne Blvd., Hawthorne, CA, 90250
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
028281020
Principal Investigator:
David H. KlydeSystems Technology, Inc.
Principal Investigator
(310) 679-2281
dklyde@systemstech.com
Business Contact:
SuzieFosmore
Business Official
(310) 679-2281
suzie@systemstech.com
Research Institute:
n/a
Abstract
Flutter is a potentially explosive phenomenon that is the result of the simultaneous interaction of aerodynamic, structural, and inertial forces. The analytical prediction of flutter in the transonic regime requires high fidelity simulation models that are computationally expensive. Due to the computational demands, traditional uncertainty analysis is not often applied to flutter prediction, resulting in reduced confidence in the results. This Phase I research is aimed at exploring methods to reduce the previous computational time limitations of traditional uncertainty analysis. To dramatically reduce the computational burden of uncertainty analysis, Systems Technology, Inc. proposes to investigate both the coupling of Design of Experiment (DOE) and Response Surface Methods (RSM), and the application of robust stability techniques, namely ýýýý-analysis. Using Reduced Order Models (ROM), the DOE/RSM and ýýýý-analysis approaches will be compared to traditional Monte Carlo based stochastic simulation. The result of the Phase I program will be to demonstrate the utility of the core elements of the Aeroelastic Uncertainty Analysis Toolbox (AUAT). AUAT will contain multiple methods for addressing flutter uncertainty analysis, coupled with a state-of-the-art nonlinear aeroelastic code.

* information listed above is at the time of submission.

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