Use of high fidelity methods in multidisciplinary optimization - A preliminary study

Multidiciplinary optimization is a key element of the design process. To date multidiscipline optimization methods that use low fidelity methods are well developed. Gradient based optimization methods that use data from 3-D linear aerodynamic solvers and 2-D structural solvers have been applied to complex aerospace configurations. However, use of high fidelity methods such as Euler/Navier Stokes methods for fluids and 3-D finite element method for structures is not as well developed. As an activity of the Multidisciplinary Design Optimization Technical Committee (MDO TC) of AIAA, an effort was initiated to assess the status and use of high fidelity methods in multidisciplinary optimization. Contributions were solicited through the members of the MDO TC committee. This paper provides a summary of that effort.