Iranian Journal of Mechanical Engineering Transactions of ISME

Iranian Journal of Mechanical Engineering Transactions of ISME

Size and shape optimization of two dimensional trusses applying multi objective functions with NSCSS method

Authors
Seyed Saeed Hoseini
Ali Ghodosian
Rahmat Ollah Rahmani
Department of Mechanical Engineering, Semnan University, Semnan, Iran
Abstract
This paper covers optimization techniques for trusses to find the most efficient cross sections and configuration of joints. The improvement will be achieved by applying changes in one or both of these parameters. Objective functions for optimization is weight and the deflection of the truss’s joints. For optimization of both weight and deflection the NSCSS method is used. This is a powerful method that enables the optimization of huge trusses. The former methods for optimization of the shape or size of the trusses, was done separately and as a single objective while this paper covers a new way via multi-objective methods. For proofing the ability of the represented method in this paper, some standard examples are compared. The comparison of the results shows good accuracy and desirable verity of pareto front.
Keywords
Truss
Multiobjective function
Size
NSCSS
shape optimization
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Iranian Journal of Mechanical Engineering Transactions of ISME
Volume 17, Issue 1 - Serial Number 38
System Dyanamics and Solid Mechanics
Spring 2015
Pages 40-54

  • Receive Date 22 May 2015