Structural topology optimization of a pylon's mount using ant colony algorithms

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[1] [1,Xue, Cai-Jun
[2] 1,Xu, Fen-Jin
[3] 1,Xu, Yuan
[4] 1,Tan, Wei
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Xue, C.-J. (cjxue@nuaa.edu.cn) | 1600年 / American Institute of Aeronautics and Astronautics Inc.卷 / 49期
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In this paper; an improved ant colony optimization (ACO) algorithm and the finite element analysis (FEA) method are employed in the topology optimization for the forward mount of a pylon. Aiming at the basic ACO algorithm's shortcomings; which hold slow convergence rate at the ending and easily plunge into the local optimum; a new ACO algorithm is proposed by using the strategy of weighting factors and resetting pheromone when the algorithm falls into local optimization. Finally; the Patran command language is used to combine the improved ACO algorithm and MSC.Patran/Nastran to realize the information exchanging between the ACO algorithm and the finite element method. The stiffest structure with a certain amount of materials will be found according to the average stress of every element. The optimized solutions and the static test of the forward mount of a pylon prove that the study is not only theoretically significant but also practically valuable. Copyright © 2011 by the American Institute of Aeronautics and Astronautics; Inc;
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