Accession Number:

ADA455480

Title:

High-Fidelity Aero-Structural Design Optimization of a Supersonic Business Jet

Descriptive Note:

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION MOFFETT FIELD CA AMES RESEARCH CENTER

Personal Author(s):

• Martins, Joaquim R.
• Alonso, Juan J.
• Reuther, James J.

Report Date:

2002-01-01

Pagination or Media Count:

15.0

Abstract:

This paper focuses on the demonstration of an integrated aero-structural method for the design of aerospace vehicles. Both aerodynamics and structures are represented using high-fidelity models such as the Euler equations for the aerodynamics and a detailed finite element model for the primary structure. The aerodynamic outer mold line OML and a structure of fixed topology are parameterized using a large number of design variables. The aero-structural sensitivities of aerodynamic and structural cost functions with respect to both aerodynamic shape and structural variables are computed using an accurate and efficient coupled-adjoint procedure. K-S functions are used to reduce the number of structural constraints in the problem. Sample optimization results of the aerodynamic shape and structure of a natural laminar flow supersonic business jet are presented together with an assessment of the accuracy of the sensitivity information obtained using this procedure.

Descriptors:

• *AERODYNAMIC CONFIGURATIONS
• *OPTIMIZATION
• *SUPERSONIC AIRCRAFT
• MATHEMATICAL MODELS
• COMMERCE
• MODELS
• STRUCTURAL PROPERTIES
• FINITE ELEMENT ANALYSIS
• ACCURACY
• SENSITIVITY
• MOLDS(FORMS)
• VARIABLES
• COSTS
• TOPOLOGY
• AEROSPACE CRAFT
• EXTERNAL
• EULER EQUATIONS
• AERODYNAMICS

Subject Categories:

• Aerodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE