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Steel truss optimization using genetic algorithms and FEA

机译:钢桁架优化使用遗传算法和FEA

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This research presents a procedure and a software application to optimize the topology, size and shape of plane trusses using a genetic algorithm and the finite element analysis to evaluate the fitness function. The paper describes the optimization technique, problem encoding and fitness evaluation. It then presents the results obtained by optimizing one benchmark and two original problems to show the procedure efficiency. The trusses are encoded in chromosomes using an original technique that allows the simultaneous optimization of topology, shape and size. The objective of the optimization is the total mass of the structure, subjected to stress and displacement constraints using an original penalty function. Stress and displacement analysis is performed using the finite element method. Both the FEA evaluation and the GA optimization itself are implemented in MATLAB.
机译:本研究提出了一种过程和软件应用,以优化使用遗传算法和有限元分析来优化平面桁架的拓扑,尺寸和形状,以评估适合功能。本文介绍了优化技术,问题编码和健身评估。然后,它提出了通过优化一个基准和两个原始问题而获得的结果以显示过程效率。桁架使用原始技术在染色体中编码,该技术允许同时优化拓扑,形状和尺寸。优化的目的是使用原始惩罚功能进行应力和位移约束的结构的总质量。使用有限元方法进行应力和位移分析。 FEA评估和GA优化本身都在MATLAB中实现。

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