A Study of Uncertainties in Nonlinesr Aeroelastic Systems

Abstract

A principal goal of the Air Force research program is to develop accurate, reliable and efficient computational models so that laboratory and flight tests may be decreased and/or the results of such tests may be more effective in reducing design and production costs of new Air Force systems. Key challenges in achieving this goal are the uncertainties that exist in computational models. These uncertainties may be a result of the limitations of the mathematical model in representing physical reality, the numerical uncertainties that arise in obtaining (computational) solitions to these models, and/or the uncertainties in the parameters that enter into such models. Examples of each of these uncertainties have been studied for nonlinear aeroelastic systems and the computational results compared with experiment. New highly computationally efficient methods have been developed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2006
Accession Number
ADA469723

Entities

People

  • Earl H. Dowell
  • Jeffrey Thomas
  • Peter Attar

Organizations

  • Duke University

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aeroelasticity
  • Air Force
  • Air Force Research Laboratories
  • Computational Fluid Dynamics
  • Computational Science
  • Delta Wings
  • Differential Equations
  • Equations
  • Frequency
  • Materials Science
  • Mathematical Models
  • Military Research
  • Models
  • Navier Stokes Equations
  • Partial Differential Equations
  • Wind Tunnels

Fields of Study

  • Physics

Readers

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  • Systems Analysis and Design
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