Multiobjective optimization of viscoelastic laminated sandwich structures using the Direct MultiSearch method

Madeira, JFA; Araújo, A.L.; Mota Soares, C.M.; Mota Soares, C.A.

http://hdl.handle.net/10400.21/5995

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Abstract(s)

A multiobjective approach for optimization of passive damping for vibration reduction in sandwich structures is presented in this paper. Constrained optimization is conducted for maximization of modal loss factors and minimization of weight of sandwich beams and plates with elastic laminated constraining layers and a viscoelastic core, with layer thickness and material and laminate layer ply orientation angles as design variables. The problem is solved using the Direct MultiSearch (DMS) solver for derivative-free multiobjective optimization and solutions are compared with alternative ones obtained using genetic algorithms.

Keywords

Multiobjective optimization Direct MultiSearch Sandwich structures Damping

URI

http://hdl.handle.net/10400.21/5995

Citation

MADEIRA, J.F.A.; [et al.] - Multiobjective optimization of viscoelastic laminated sandwich structures using the Direct MultiSearch method. Computers & Structures . ISSN. 0045-7949. Vol. 147, SI (2015), pp. 229-235.