Accession Number:

ADA582315

Title:

Computational Design Optimization Under Uncertainty of Systems with Nonlinear Aeroelastic Constraints

Descriptive Note:

Final rept. Jul 2010-Jul 2012

Corporate Author:

ARIZONA UNIV TUCSON DEPT OF AEROSPACE AND MECHANICAL ENGINEERING

Personal Author(s):

• Missoum, Samy

Report Date:

2012-08-21

Pagination or Media Count:

12.0

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.

Descriptors:

• *AERONAUTICAL ENGINEERING
• AEROELASTICITY
• AIRCRAFT DESIGN
• AIRFOILS
• BOUNDARIES
• DISCONTINUITIES
• UNCERTAINTY

Subject Categories:

• Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE