Particle swarm approach for structural design optimization
Computers and Structures
A modified particle swarm optimization via particle visual modeling analysis
Computers & Mathematics with Applications
A perturbed particle swarm algorithm for numerical optimization
Applied Soft Computing
A study of particle swarm optimization particle trajectories
Information Sciences: an International Journal
Metaheuristics: From Design to Implementation
Metaheuristics: From Design to Implementation
Truss optimization with dynamic constraints using a particle swarm algorithm
Expert Systems with Applications: An International Journal
Self-adaptive learning based particle swarm optimization
Information Sciences: an International Journal
Optimal design of truss-structures using particle swarm optimization
Computers and Structures
Expert Systems with Applications: An International Journal
Advances in Engineering Software
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This paper represents a new algorithm for structural optimization with frequency constraints. The new algorithm is termed Democratic Particle Swarm Optimization. The emphasis is placed upon alleviating the premature convergence phenomenon which is believed to be one of flaws of the original PSO. When considering frequency constraints in a structural optimization problem, the search spaces happen to be highly non-linear and non-convex hyper-surfaces with numerous local optima and naturally the problem of premature convergence is amplified. The proposed algorithm is capable of coping with this problem. Four numerical examples are presented to demonstrate the viability of the algorithm.