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Structural Engineering and Mechanics Volume 54, Number 3, May10 2015 , pages 453-474 DOI: https://doi.org/10.12989/sem.2015.54.3.453 |
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Hybrid PSO and SSO algorithm for truss layout and size optimization considering dynamic constraints |
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A. Kaveh, T. Bakhshpoori and E. Afshari
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| Abstract | ||
| A hybrid approach of Particle Swarm Optimization (PSO) and Swallow Swarm Optimization algorithm (SSO) namely Hybrid Particle Swallow Swarm Optimization algorithm (HPSSO), is presented as a new variant of PSO algorithm for the highly nonlinear dynamic truss shape and size optimization with multiple natural frequency constraints. Experimentally validation of HPSSO on four benchmark trusses results in high performance in comparison to PSO variants and to those of different optimization techniques. The simulation results clearly show a good balance between global and local exploration abilities and consequently results in good optimum solution. | ||
| Key Words | ||
| hybrid meta-heuristics; Hybrid Particle Swallow Swarm Optimization algorithm; truss optimization; frequency constraints | ||
| Address | ||
| A. Kaveh, T. Bakhshpoori and E. Afshari: Centre of Excellence for Fundamental Studies in Structural Engineering, School of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran-16, Iran | ||