Geometrically Nonlinear Analysis of Trusses Using Particle Swarm Optimization

  • Rasim Temür
  • Yusuf Sait Türkan
  • Yusuf Cengiz Toklu
Chapter

Abstract

Particle swarm optimization (PSO) algorithm is a heuristic optimization technique based on colony intelligence, developed through inspiration from social behaviors of bird flocks and fish schools. It is widely used in problems in which the optimal value of an objective function is searched. Geometrically nonlinear analysis of trusses is a problem of this kind. The deflected shape of the truss where potential energy value is minimal is known to correspond to the stable equilibrium position of the system analyzed. The objective of this study is to explore the success of PSO using this minimum total potential energy principle, in finding good solutions to geometrically nonlinear truss problems. For this purpose analyses are conducted on three structures, two plane trusses and a space truss. The results obtained show that in case of using 20 or more particles, PSO produces very good and robust solutions.

Keywords

Particle swarm optimization Structural analysis Truss systems Nonlinear analysis Potential energy TPO/MA 

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Rasim Temür
    • 1
  • Yusuf Sait Türkan
    • 2
  • Yusuf Cengiz Toklu
    • 3
  1. 1.Department of Civil Engineering, Faculty of EngineeringIstanbul UniversityIstanbulTurkey
  2. 2.Open and Distance Education FacultyIstanbul UniversityIstanbulTurkey
  3. 3.Department of Civil Engineering, Faculty of EngineeringBilecik Seyh Edebali UniversityBilecikTurkey

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