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

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.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2002
Accession Number
ADA455480

Entities

People

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

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerospace Craft
  • Aircraft Design
  • Aircrafts
  • Airframes
  • Commerce
  • Computational Fluid Dynamics
  • Computational Science
  • Fluid Dynamics
  • Geometry
  • Laminar Flow
  • Materials
  • Optimization
  • Pressure Distribution
  • Reliability
  • Spars
  • Structural Analysis
  • Supersonic Aircraft

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Computational Fluid Dynamics (CFD)
  • Statistical inference.

Technology Areas

  • Hypersonics
  • Space
  • Space - Hall-Effect Thruster