Journal of Applied and Computational Mechanics
Shape Optimization of Slotted Steel Plate Dampers using the Simulated Annealing Algorithm
Document Type : Research Paper
Authors
1 Departamento de Ingeniería Civil, Pontificia Universidad Javeriana, Cra 7 # 40-62, Bogotá, 1100-1000, Colombia
2 Departamento de Ingeniería Civil, Pontificia Universidad Javeriana, Cra 7 # 40-62, Bogotá, 1100-1000, Colombia
Abstract
This paper reports a procedure for maximizing the energy dissipation capacity (EDC) of a slotted steel plater damper by changing its initial geometrical shape. The methodology uses a simulated annealing algorithm to iteratively vary the slots' disposition, number, and geometry while improving the EDC. This capacity is computed for each tested configuration from a finite element analysis in ABAQUS, considering a cyclic displacement protocol. Five initial sections are enhanced, with the optimal one evoking a sand clock shape with two symmetric slots. The EDC increment is higher than 300%. It is observed that the objective function is multi-modal, and the optimal solution depends on the initial design. The proposed procedure is computationally easy to implement and requires less than fifty iterations to guarantee convergence in all cases.
Keywords
Main Subjects
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