Optimization of mistuned bladed discs using gradient-based response surface approximations

Petrov, E P, Vitali, R and Haftka, R T (2000) Optimization of mistuned bladed discs using gradient-based response surface approximations. In: 41st Aiaa/Asme/Asce/Ahs/Asc Structures, Structural Dynamics, and Materials Conference and Exhibit, Vol 1 Pts 1-3, Apr 03-06, 2000, Atlanta, GA, USA.

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Abstract

The problem of searching for the best arrangement of mistuned blades on a bladed disc is formulated and solved as a combinatorial optimization problem. The maximum response level is chosen as the objective function and the individual blade mistunings are the design variables. Gradient-based response surface approximations are built for the objective function benefiting from a inexpensive calculation of the gradient of the objective function. Periodic polynomials used for the approximation reduce the number of required numerical experiments. The found approximations are used for solution of the problem by genetic optimization algorithms

Item Type: Conference or Workshop Item (Paper)
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: T Technology > TJ Mechanical engineering and machinery
Depositing User: Yevgen Petrov
Date Deposited: 27 Nov 2012 07:20
Last Modified: 27 Nov 2012 07:20
URI: http://sro.sussex.ac.uk/id/eprint/42996
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