Multidisciplinary Design Opimization (MDO)

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 28336
Amount: $548,902.00
Phase: Phase II
Program: SBIR
Awards Year: 1996
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Analytical Methods, Inc.
2133 152nd Avenue Ne, Redmond, WA, 98052
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr. James K. Nathman
 (206) 643-9090
Business Contact
Phone: () -
Research Institution
N/A
Abstract
A Cartesian, multigrid, Euler solver is investigated for development as a module suitable for the multidisciplinary design optimization (MDO) environment. The ultimate objective is not to improve the Euler solver (it is already a mature code) but rather to augment or replace the linear panel method flow solvers used in the Automated Structural Optimization System (ASTROS) for the purpose of airframe design optimization. The Euler solver, MGAERO, uses Cartesioan, not body-fitted grids, and components are independently defined for geometric versatility. It has demonstrated the ability to predict leading-edge vortices and shock capturing; consequently, challenging design problems, such as complete wing/body/nacelle shape tailoring, can be addressed. To investigate the requirements needed for integration of Euler solver, a study will be made of an aeroeleastic analysis at Mach 1.25 of the Multidisciplinary Wing described in the ASTRES Applications manual. The study will describe the modifications of the Euler solver and enhancements to ASTROS needed to perform suchan analysis, as well as a comparison to the results obtained from the present flow solver.

* information listed above is at the time of submission.

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