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Research Article

Verification of a genetic algorithm for the optimization of stiffened plates through the constructal design methodne

Marcelo Langhinrichs Cunha1, Emanuel da Silva Diaz Estrada1, Grégori da Silva Troina1, Elizaldo Domingues dos Santos1, Luiz Alberto Oliveira Rocha2, Liércio André Isoldi1

1Federal University of Rio Grande - FURG, Rio Grande, RS, Brazil                                                           2University of Vale do Rio dos Sinos - UNISINOS, São Leopoldo, RS, Brazil

Keywords

Abstract


Genetic Algorithm;

 Ribbed plates;

 Constructal Design; 

Finite Elements;

 Optimization

This work is a feasibility study of a Genetic Algorithm (GA) based geometric optimization of stiffened plates subjected to transverse loads. For that, the Constructal Design method was used in order to define the search space, aiming to minimize the stiffened plate’s central deflection, while keeping the total volume of material constant. The number of longitudinal Nls and transverse Nts stiffeners and the relation hs/ts, the ratio between the height and the thickness of the ribs, were considered as degrees of freedom of the studied optimization problem. In order to estimate the displacement field of the plate reinforced with stiffeners, the Finite Element Method (FEM) was used through the ANSYS® Mechanical APDL software. For the verification, the results obtained in the present study were compared with those obtained by Troina (2017), which used Exhaustive Search (ES) as optimization technique. The results indicated that is more efficient using GA than ES since the former requires the analysis of a lesser amount of cases in order to determine the optimal geometric configuration; there being reductions of up to 47,09% on the number of simulations.© 2019 MIM Research Group. All rights reserved.

LATEST News


25/12/2019 Most Cited Paper Award: The paper authored by Manoj Sahni and Sanjeev Sharma entitled as “Elastic-plastic deformation of a thin rotating solid disk of exponentially varying density" is awarded the 2019 Most Cited Paper Award of Research on Engineering Structures and Materials (RESM).

25/12/2019 Best Paper Award: The paper authored by Marcelo Mesquita do Amaral, Matheus Wanglon Ferreira and Mauro de Vasconcellos Real entitled as “A simplified method for analysis of reinforced concrete beams exposed to fire situation” is awarded the 2019 Best Paper Award of Research on Engineering Structures and Materials (RESM).


13/11/2019 Data articles as a new type of submision: Editorial Board of our journal have decided to accept a new type of submission: data articles. The focus of these papers is only on data and how it is collected but not on its interpretation and drawn conclusions. For more see News section.


24/5/2019 Collaboration for THERMAM 2019: Editorial Board of our journal and Organizing Committee of 6th International Conference of Thermophysical and Mechanical Properties of Advanced Materials, 8th Rostocker International Conference of Thermophysical Properties for Technical Thermodynamics have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


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LATEST AWARDS


2019 Most Cited Paper Award:

The paper authored by Manoj Sahni and Sanjeev Sharma entitled as “Elastic-plastic deformation of a thin rotating solid disk of exponentially varying density" is awarded the


2019 Best Paper Award:

The paper authored by Marcelo Mesquita do Amaral, Matheus Wanglon Ferreira and Mauro de Vasconcellos Real entitled as “A simplified method for analysis of reinforced concrete beams exposed to fire situation” is awarded the 


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Last Update:

15.02.2020

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