Enhancing Particle Swarm Optimization for Multi-Objective Design Optimizations

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Main Authors: Dr. Rohan Kumar, Prof. Aishwarya Desai
Format: Recurso digital
Published: Zenodo 2022
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author Dr. Rohan Kumar
Prof. Aishwarya Desai
author_facet Dr. Rohan Kumar
Prof. Aishwarya Desai
contents <p>—Aiming at optimizing the weight and deflection of cantilever beam subjected to maximum stress and maximum deflection, Multi-objective Particle Swarm Optimization (MOPSO) with Utopia Point based local search is implemented. Utopia point is used to govern the search towards the Pareto Optimal set. The elite candidates obtained during the iterations are stored in an archive according to non-dominated sorting and also the archive is truncated based on least crowding distance. Local search is also performed on elite candidates and the most diverse particle is selected as the global best. This method is implemented on standard test functions and it is observed that the improved algorithm gives better convergence and diversity as compared to NSGA-II in fewer iterations. Implementation on practical structural problem shows that in 5 to 6 iterations, the improved algorithm converges with better diversity as evident by the improvement of cantilever beam on an average of 0.78% and 9.28% in the weight and deflection respectively compared to NSGA-II</p>
format Recurso digital
id zenodo_https___doi_org_10_5281_zenodo_19325773
institution Zenodo
language
publishDate 2022
publisher Zenodo
record_format zenodo
spellingShingle Enhancing Particle Swarm Optimization for Multi-Objective Design Optimizations
Dr. Rohan Kumar
Prof. Aishwarya Desai
Utopia point
multi-objective particle swarm optimization
local search
cantilever beam.
<p>—Aiming at optimizing the weight and deflection of cantilever beam subjected to maximum stress and maximum deflection, Multi-objective Particle Swarm Optimization (MOPSO) with Utopia Point based local search is implemented. Utopia point is used to govern the search towards the Pareto Optimal set. The elite candidates obtained during the iterations are stored in an archive according to non-dominated sorting and also the archive is truncated based on least crowding distance. Local search is also performed on elite candidates and the most diverse particle is selected as the global best. This method is implemented on standard test functions and it is observed that the improved algorithm gives better convergence and diversity as compared to NSGA-II in fewer iterations. Implementation on practical structural problem shows that in 5 to 6 iterations, the improved algorithm converges with better diversity as evident by the improvement of cantilever beam on an average of 0.78% and 9.28% in the weight and deflection respectively compared to NSGA-II</p>
title Enhancing Particle Swarm Optimization for Multi-Objective Design Optimizations
topic Utopia point
multi-objective particle swarm optimization
local search
cantilever beam.
url https://doi.org/10.5281/zenodo.19325773