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  Volume 2, Number 4, October 2017, pages 273-281
DOI: http://dx.doi.org/10.12989/acd.2017.2.4.273
 


Optimum design of a walking tractor handlebar through many-objective optimisation
Apichit Mahachai, Sujin Bureerat and Nantiwat Pholdee

 
Abstract
    In this work, a comparative study of multi-objective meta-heuristics (MOMHs) for optimum design of a walking tractor handlebar is conducted in order to reduce the structural mass and increase structural static and dynamic stiffness. The design problem has objective functions as maximising structural natural frequencies, minimising structural mass, bending deflection and torsional deflection with stress constraints. The problem is classified as a many-objective optimisation since there are more than three objectives. Design variables are structural shape and size. Several well established multi-objective optimisers are employed to solve the proposed many-objective optimisation problems of the walking tractor handlebar. The results are compared whereas optimum design solutions of the walking tractor handlebar are illustrated.
 
Key Words
    many-objective optimisation; natural frequency; walking tractor handlebar; structural stiffness; vibration suppression
 
Address
Apichit Mahachai, Sujin Bureerat and Nantiwat Pholdee: Sustainable and Infrastructure Research and Development Center, Department of Mechanical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
 

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