Matlab’s GA and Optimization Toolbox: A Fourbar Mechanism Application

Lale Canan Dulger, Huseyin Erdogan, Mehmet Erkan Kutuk
  • Huseyin Erdogan
    Turkish Railway Company, Turkey
  • Mehmet Erkan Kutuk
    Gaziantep University, Turkey


This study presents an optimization approach for synthesis of planar mechanisms. A four bar mechanism is chosen for an application example. This mechanism is studied with the constraints assigned. Genetic Algorithm (GA) is applied during optimization study. GA in Optimization Toolbox is then compared with nonlinear constrained numerical optimization command; fmincon in Matl ab©. Different case studies are performed by considering different target points. These mechanisms are drawn using Excel© spread sheet to see their animations. An optimization example is presented here. Performances of both algorithms are then compared in terms of coupler curves precision points. Their use in designing a four bar mechanism is explored for its further use.


Four bar mechanism; Mechanism synthesis; Optimization; Genetic algorithm

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Submitted: 2013-11-08 10:44:16
Published: 2014-02-25 00:38:11
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