Abstract
Welded structures are widely used in many engineering load carrying structures such as columns, towers for wind turbine or water tanks, offshore and submarine structures, girders, stiffened doors, etc. welding is a costly fabrication process and proper sequence and welding process effect the cost of a huge structure. Keeping this in view two different problems from the literature for the cost optimization of welded structures are considered in this paper. The optimization procedure is carried out using artificial bee colony (ABC) optimization technique. Classical ABC is modified to increase the convergence rate of the original algorithm. Comparison of both the variants is experimented on many bench mark examples from the literature and also on two cost optimization problems of welded structures. The results of the considered techniques are compared with the previously published results. The considered techniques have given much better results in comparison to the previously tried approaches and also modified ABC has shown superiority over classical ABC.
Highlights
Stiffeners are required to improve the load carrying capacity of structures
An effort is made to verify if any improvement in the solution is possible by employing artificial bee colony (ABC) optimization technique to two different cost optimization problems for welded structures reported in the literature
As this paper focuses on the optimization of welded structures two special problems of welded structure optimization is taken from the literature and is given in detail as follows
Summary
Stiffeners help to achieve lightweight and robust design of the structure For this purpose they have wide use in structural engineering domain. Anderson and Chong [4] presented the minimum cost design of homogeneous and hybrid stiffened steel plate girders according to the AISC code [2]. Farkas and Jarmai [16] presented the minimum cost design of laterally loaded welded cellular steel plates using.
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