Optimizations of Stiffened Composite Panel Using Fractal Branch and Bound Method
説明
This paper describes the development of a new low-cost optimization method for the optimal design of the laminated composite structures and a result of the application of this method in the minimum weight design of a hat-stiffened composite panel subject to a buckling constraint. This new method is based on two main works. First, the fractal branch and bound method, which is a stacking sequence optimization method we have proposed, is integrated with the particle swarm optimization technique. Second, the Kriging-based response surface is used to find out the global optimum, not just to approximate an objective function value. The criterion ‘expected improvement (EI)’ based on the Kriging model is adopted for this purpose. The validity of the proposed method is examined. The result indicates that the method provides valuable solutions with good precision and a low computational cost.
収録刊行物
-
- 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
-
46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2005-04-18
American Institute of Aeronautics and Astronautics (AIAA)
