Mass optimization of four bar linkage using genetic algorithms with dual bending and buckling constraints

M.R.A. Hassan , I.A. Azid , M. Ramasamy , J. Kadesan , K.N. Seetharamu , A.S.K. Kwan , P. Arunasalam

Abstract

In this paper, the mass optimization of four bar linkages is carried out using genetic algorithms (GA) with single and dual constraints. The single constraint of bending stress and the dual constraints of bending and buckling stresses are imposed. From the movement response of the bar linkage mechanism, the analysis of the mechanism is developed using the combination of kinematics, kinetics, and finite element analysis (FEA). A penalty-based transformation technique is used to convert the constrained problem into an unconstrained one. Lastly, a detailed comparison on the effect of single constraint and of dual constraints is presented.

Key Words

mass optimization; bar linkage; finite element analysis; genetic algorithms; buckling constraints.

Address

M.R.A. Hassan — Faculty of Mechanical Engineering, Penang Campus, Universiti Teknologi MARA, 13500 Permatang Pauh, Pulau Pinang, Malaysia
I.A. Azid — School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
M. Ramasamy — School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
J. Kadesan — School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
K.N. Seetharamu — M.S. Ramaiah School of Advanced Studies, New B E L Road, Bangalore-560054, India
A.S.K. Kwan — Division of Structural Engineering, Cardiff School of Engineering, PO Box 686 The Parade, Cardiff CF24 3TB, U.K.
P. Arunasalam — Department of Mechanical Engineering, T.J. Watson School of Mechanical Engineering, State University of New York at Binghamton, NY 13902, USA

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