Structural Engineering and Mechanics

  • 제81권3호
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  • Pages.367-378
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  • 2022
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Optimization of spatial truss towers based on Rao algorithms

  • 투고 : 2021.08.03
  • 심사 : 2021.11.22
  • 발행 : 2022.02.10
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, combined size and shape optimization of spatial truss tower structures are presented by using new optimization algorithms named Rao-1, and Rao-2. The nodal displacements, allowable stress and buckling for compressive members are taken into account as structural constraints for truss towers. The discrete and continuous design variables are used as design variables for size and shape optimization. To show the efficiency of the proposed optimization algorithm, 25-bar, and 39-bar 3D truss towers are solved for combined size and shape optimization. The 72-bar, and 160-bar 3D truss towers are solved only by size optimization. The optimal results obtained from this study are compared to those given in the literature to illustrate the efficiency and robustness of the proposed algorithm. The structural analysis and the optimization process are coded in MATLAB programming.

키워드

과제정보

The author would like to thanks Prof. Dr. Tayfun Dede, and Assist. Prof. Barbaros Atmaca for fruitful discussions and constructive comments on the optimization part of this paper. Thanks also to Prof. Dr. Sakir Erdogdu the Head of Department of Civil Engineering, Karadeniz Technical University, Turkey, for inviting me to his group as visiting scholar from period December 2020 - March 2021.

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