Computational Design Optimization Under Uncertainty of Systems with Nonlinear Aeroelastic Constraints

Abstract

The work funded through this grant has enabled the development of a new methodology to substantially facilitate the design of systems with aeroelastic constraints. Techniques focusing on the optimal design and the propagation of uncertainties have been developed. The fundamental paradigm shift in this work stems from the use of a classification-based approach to construct explicit "decision" boundaries such as stability boundaries. This enables one to manage problems with discontinuities (e.g., problems with subcritical limit cycle oscillations) or problems with a large number of constraints. This approach has been used as the foundation for reliability-based design optimization and multifidelity algorithms for the reduction of computational time. The proposed techniques have been successfully applied to several design examples with aeroelastic constraints.

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Document Details

Document Type
Technical Report
Publication Date
Aug 21, 2012
Accession Number
ADA582315

Entities

People

  • Samy Missoum

Organizations

  • University of Arizona

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Airfoils
  • Algorithms
  • Boundaries
  • Classification
  • Construction
  • Contracts
  • Discontinuities
  • Experimental Data
  • Experimental Design
  • Failure Mode And Effect Analysis
  • Gaussian Processes
  • Mechanical Engineering
  • Probability
  • Reliability
  • Supervised Machine Learning
  • Three Dimensional

Fields of Study

  • Engineering
  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Computational Fluid Dynamics (CFD)
  • Systems Analysis and Design