SHAPE OPTIMIZATION OF STRUCTURES BY MODIFIED HARMONY SEARCH

Authors

  • A. Barzegar
  • Ch. Gheyratmand
  • S. Gholizadeh
Abstract:

The main aim of the present study is to propose a modified harmony search (MHS) algorithm for size and shape optimization of structures. The standard harmony search (HS) algorithm is conceptualized using the musical process of searching for a perfect state of the harmony. It uses a stochastic random search instead of a gradient search. The proposed MHS algorithm is designed based on elitism. In fact the MHS is a multi-staged version of the HS and in each stage a new harmony memory is created using the information of the previous stages. Numerical results reveal that the proposed algorithm is a powerful optimization technique with improved exploitation characteristics compared with the standard HS.

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Journal title

volume 1  issue 3

pages  485- 494

publication date 2011-09

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