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Multiobjective optimization inspired by behavior of jellyfish for solving structural design problems
- Source :
- Chaos, Solitons & Fractals. 135:109738
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- This study develops a Multi-Objective Jellyfish Search (MOJS) algorithm to solve engineering problems optimally with multiple objectives. Levy flight, elite population, fixed-size archive, chaotic map, and the opposition-based jumping method are integrated into the MOJS to obtain the Pareto optimal solutions. These techniques are employed to define the motions of jellyfish in an ocean current or a swarm in multi-objective search spaces. The proposed algorithm is tested on 20 multi-objective mathematical benchmark problems, and compared with six well-known metaheuristic optimization algorithms (MOALO, MODA, MOEA/D, MOGWO, MOPSO, and NSGA-II). The results thus obtained indicate that the MOJS finds highly accurate approximations to Pareto-optimal fronts with a uniform distribution of solutions for the test functions. Three constrained structural problems (25-bar tower design, 160-bar tower design, and 942-bar tower design) of minimizing structural weight and maximum nodal deflection were solved using MOJS. The visual analytics demonstrates the merits of MOJS in solving real engineering problems with best Pareto-optimal fronts. Accordingly, the MOJS is an effective and efficient algorithm for solving multi-objective optimization problems.
- Subjects :
- Visual analytics
education.field_of_study
Mathematical optimization
Optimization problem
Computer science
General Mathematics
Applied Mathematics
Population
General Physics and Astronomy
Swarm behaviour
Statistical and Nonlinear Physics
01 natural sciences
Multi-objective optimization
010305 fluids & plasmas
Lévy flight
0103 physical sciences
Algorithm design
education
010301 acoustics
Metaheuristic
Subjects
Details
- ISSN :
- 09600779
- Volume :
- 135
- Database :
- OpenAIRE
- Journal :
- Chaos, Solitons & Fractals
- Accession number :
- edsair.doi...........366bd51e62680a7bd3a55f3e2a64ad98