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PSO-Based Parametric Modelling of a Thin Plate Structure

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5 Author(s)
Salleh, S.M. ; Dept. of Autom. Control & Syst. Eng., Univ. of Sheffield, Sheffield, UK ; Tokhi, M.O. ; Julai, S. ; Mohamad, M.
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Parametric modelling of dynamic structure may benefits from features of particle swarm optimization (PSO), which robust and fast in solving nonlinear, non-differentiable, and multimodal problems. This paper presents the PSO approach which includes an improved algorithm to model a flexible plate structure parametrically. The introduction of a dynamic spread and momentum factor, both by modifying the inertial weight of each particle, solves the problem of getting stuck at local optima, preserves diversity and trades-off between exploration and exploitation. The identification is performed on basis of minimizing the mean-squared output error and is assessed with correlation tests and in time and frequency domains. It is shown input-output characterization in time and frequency domains that the improved algorithm possesses features of accuracy and quick convergence.

Published in:

Computer Modeling and Simulation, 2009. EMS '09. Third UKSim European Symposium on

Date of Conference:

25-27 Nov. 2009