Structural and control optimization of space structures

Abstract A simultaneous structural and control optimization of flexible structures is presented in this paper. Behavior constraints are imposed on the closed-loop eigenvalue distribution and the damping parameters. Optimum results are obtained with three different optimization algorithms, and the nonunique nature of the optimum solutions is discussed. Also, the minimization of the Frobenious norm is investigated. A two-bar truss and an ACOSS four structure were designed and numerical comparisons are presented. The qualitative aspects of the optimum solutions are discussed with the transient response and control effort simulations.

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