Applying The Differential Evolution Algorithm To The Optimisation Of Cross Sections Of Steel Columns
Author(s)
J. Kilkki, J. Lampinen & H. Martikka
Abstract
Applying the differential evolution algorithm to
the optimisation of cross sections of steel
columns
J. Kilkki \ 3. Lampinen * & H. Martikka *
i y _
' Department of Mechanical Engineering
^Department of Information Technology
Lappeenranta University of Technology, Finland
Abstract
The suitability of the evolution algorithm for mixed number optimisation is
presented. The cross section of a welded or edged steel column is optimised
using the total mass as the object function. The optimisation is repeated using
different effective lengths of the column. The thickness of the material is chosen
from the commonly available plate thicknesses. The widths and heights of the
plate fields are used as continuous optimisation parameters. The discrete
optimisation parameters are the thickness of the steel plates, the number of plate
fields, and material properties. The selection of the population size, the mutation
probability and the value of the differential factor have a strong effect on bo
Keywords
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