Multi-Objective Design Optimization of Multiple Tuned Mass Dampers for Attenuation of Dynamic Aeroelastic Response of Aerospace Structures

This paper proposes a design procedure to determine the optimal configuration of multi-degrees freedom (MDOF) multiple tuned mass dampers (MTMD) mitigate global dynamic aeroelastic response aerospace structures. The computation aerodynamic excitations is performed considering two models atmospheric disturbances, namely, Power Spectral Density (PSD) modelled with Davenport Spectrum (DS) and Tuned Discrete Gust (TDG) one-minus cosine profile. In order optimum sets MTMD, Multi-objective Optimization Genetic Algorithm (MOGA) implemented, where selected fitness functions for analysis are minimization total resonators as well concurrent peak displacements specified structural node in all translational degrees freedom. A case study presented demonstrate proposed methodology, MTMD determined pointing error truss-like antenna structure considered MTMD. It found that placement primary reflector provided maximum reduction 62.0% 39.2%, PSD TDG models, respectively. Finally, this presents an advanced framework estimate parameters control devices under convoluted loading cases initial step towards use such passive systems applications commonly employ active or semi-active solutions.