Topology optimization of trusses considering static and dynamic constraints using the CSS

Authors:
A. Kaveh;A. Zolghadr
Affiliations:
Centre of Excellence for Fundamental Studies in Structural Engineering, Department of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran-16, Iran;Centre of Excellence for Fundamental Studies in Structural Engineering, Department of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran-16, Iran
Venue:
Applied Soft Computing
Year:
2013

Citing 3
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Truss optimization with dynamic constraints using a particle swarm algorithm

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Abstract

Topology optimization of structures reveals outstanding advantages when compared to sectional optimization. Many unnecessary members and nodes may exist in a structure and a topology optimization provides an opportunity to remove them. This advantage will specially become apparent when comparatively large cost of the nodes is taken into account. Fundamental frequencies of a structure are important, easily obtained characteristics which allow the designer to keep out from the dangerous resonance phenomenon. When dynamic excitations are critical, these characteristics cannot be neglected. In this paper, topology optimization of truss structures is investigated considering stress, displacement, buckling and frequency constraints. To perform such an optimization is not simple because of large, highly nonlinear and non-convex search space. Here the newly developed charged system search algorithm is used to accomplish this optimization.