Adaptive Harmony Search Method for Structural Optimization

Date

2010-04-01

Author

Hasançebi, Oğuzhan
Saka, Mehmet Polat

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

154
views

0
downloads

This paper presents an adaptive harmony search algorithm for solving structural optimization problems. The harmony memory considering rate and pitch adjusting rate are conceived as the two main parameters of the technique for generating new solution vectors. In the standard implementation of the technique appropriate constant values are assigned to these parameters following a sensitivity analysis for each problem considered. The success of the optimization process is directly related on a chosen parameter value set. The adaptive harmony search algorithm proposed here incorporates a new approach for adjusting these parameters automatically during the search for the most efficient optimization process. The efficiency of the proposed algorithm is numerically investigated using two large-scale steel frameworks that are designed for minimum weight according to the provisions of ASD-AISC specification. The solutions obtained are compared with those of the standard algorithm as well as of the other metaheuristic search techniques. It is shown that the proposed algorithm improves performance of the technique and it renders unnecessary the initial selection of the harmony search parameters.

Subject Keywords

Mechanical Engineering, General Materials Science, Mechanics of Materials, Civil and Structural Engineering, Building and Construction

URI

https://hdl.handle.net/11511/35776

Journal

JOURNAL OF STRUCTURAL ENGINEERING

DOI

https://doi.org/10.1061/(asce)st.1943-541x.0000128

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

An accurate nonlinear 3d Timoshenko beam element based on Hu-Washizu functional Soydas, Ozan; Sarıtaş, Afşin (Elsevier BV, 2013-09-01) An accurate 3d mixed beam element that is efficient especially in nonlinear analysis is presented in this paper. The mathematical theory is based on Hu-Washizu principle that uses three-fields in the variational form. The composition of the variational form ensures independent selection of displacement, stress and strain fields. Timoshenko beam theory is extended to three dimensions for deriving strains from displacement field. Numerical integration of stress strain relations along control sections is carri...
Discussion of "Design of steel frames using ant colony optimization" by Charles V. Camp, Barron J. Bichon and Scott P. Stovall Saka, MP (American Society of Civil Engineers (ASCE), 2006-07-01) A design procedure utilizing an ant colony optimization (ACO) technique is developed for discrete optimization of steel frames. The objective function considered is the total weight (or cost) of the structure subjected to serviceability and strength requirements as specified by the American Institute for Steel Construction (AISC) Load and Resistance Factor Design, 2001. The design of steel frames is mapped into a modified traveling salesman problem (TSP) where the configuration of the TSP network reflects t...
Optimal load and resistance factor design of geometrically nonlinear steel space frames via tabu search and genetic algorithm DEĞERTEKİN, SADIK ÖZGÜR; Saka, M. P.; HAYALİOĞLU, MEHMET SEDAT (Elsevier BV, 2008-01-01) In this paper, algorithms are presented for the optimum design of geometrically nonlinear steel space frames using tabu search and genetic algorithm. Tabu search utilizes the features of short-term memory facility (tabu list) and aspiration criteria. Genetic algorithm employs reproduction, crossover and mutation operators. The design algorithms obtain minimum weight frames by selecting suitable sections from a standard set of steel sections such as American Institute of Steel Construction (AISC) wide-flange...
A modulus gradient model for inhomogeneous materials with isotropic linear elastic constituents Gülaşık, Hasan; Göktepe, Serdar; Gürses, Ercan (Elsevier BV, 2019-11-01) The one-dimensional modulus gradient (E-grad) model proposed in Gülaşık et al. (2018) is extended to more general three-dimensional inhomogeneous materials with isotropic linear elastic constituents. In addition to the constitutive equations and balance relations, length scale dependent differential relations for the material parameters of isotropic linear elasticity are provided. The finite element formulation for axisymmetric problems is derived and a model problem of a soft cylindrical rod with a stiff s...
Discrete Sizing of Steel Frames Using Adaptive Dimensional Search Algorithm Hasançebi, Oğuzhan (Periodica Polytechnica Budapest University of Technology and Economics, 2019-01-01) Adaptive dimensional search (ADS) algorithm is a recently proposed metaheuristic optimization technique for discrete structural optimization problems. In this study, discrete sizing optimization problem of steel frames is tackled using the ADS algorithm. An important feature of the algorithm is that it does not use any metaphor as an underlying principle for its implementation. Instead, the algorithm employs an efficient performance-oriented methodology at each iteration for convergence to the optimum or a ...

Citation Formats

O. Hasançebi and M. P. Saka, “Adaptive Harmony Search Method for Structural Optimization,” JOURNAL OF STRUCTURAL ENGINEERING, pp. 419–431, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35776.