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JOURNAL OF AIRCRAFT Vol. 41, No. 3, MayJune 2004

Vol. 41, No. 3, May­June 2004
High-Fidelity Aerostructural Design Optimization
of a Supersonic Business Jet
Joaquim R. R. A. Martins
University of Toronto Institute for Aerospace Studies, Toronto, Ontario M3H 5T6, Canada
Juan J. Alonso
Stanford University, Stanford, California 94305
James J. Reuther
NASA Ames Research Center, Moffett Field, California 95035
This paper focuses on the demonstration of an integrated aerostructural 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 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 outer-mold line shape
and structural variables are computed using an accurate and efficient coupled-adjoint procedure. Kreisselmeier­
Steinhauser functions are used to reduce the number of structural constraints in the problem. Results of the
aerodynamic shape and structural optimization of a natural laminar-flow supersonic business jet are presented
together with an assessment of the accuracy of the sensitivity information obtained using the coupled-adjoint


Source: Alonso, Juan J. - Department of Aeronautics and Astronautics, Stanford University


Collections: Engineering