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Shape and size optimization of truss structures by Chaos game optimization considering frequency constraints
Mahdi Azizi1, Uwe Aickelin2, Hadi A Khorshidi2
1Department of Civil Engineering, University of Tabriz, Tabriz, Iran.
Journal of Advanced Research
|November 3, 2022
Summary
Chaos Game Optimization (CGO) effectively optimizes truss structures, offering competitive results for complex engineering designs. This metaheuristic algorithm provides superior solutions compared to existing methods for real-size structural challenges.
Area of Science:
- Structural Engineering
- Computational Mechanics
- Optimization Algorithms
Background:
- Traditional structural system design is costly and time-consuming.
- Metaheuristic algorithms offer advanced optimization techniques for engineering.
- Intelligent techniques can improve efficiency in structural design and analysis.
Purpose of the Study:
- To apply the Chaos Game Optimization (CGO) algorithm for truss structure shape and size optimization.
- To evaluate CGO's performance on benchmark truss design problems with frequency constraints.
- To compare CGO with other existing optimization algorithms in structural engineering.
Main Methods:
- Utilized Chaos Game Optimization (CGO), a metaheuristic algorithm inspired by chaos theory and fractal geometry.
- Applied CGO to optimize 10-bar, 37-bar, 52-bar, 72-bar, and 120-bar truss structures.
- Incorporated frequency constraints into the optimization procedure and conducted comparative analyses.
Main Results:
- The Chaos Game Optimization (CGO) algorithm demonstrated superior and competitive performance.
- CGO provided effective solutions for the considered truss design problems.
- Results indicate CGO's capability in handling complex, real-size structural design challenges.
Conclusions:
- Chaos Game Optimization (CGO) is a highly effective metaheuristic for structural design.
- CGO offers improved solutions for complex truss structures compared to other methods.
- This algorithm presents a promising approach for advanced structural engineering optimization.
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