L. Lamberti et C. Pappalettere, Comparison of the numerical efficiency of different sequential linear programming based algorithms for structural optimisation problems, COMPUT STRU, 76(6), 2000, pp. 713-728
Amongst the different optimisation methods, the Sequential Linear Programmi
ng (S.L.P.) is very popular because of its conceptual simplicity and of the
large availability of LP commercial packages (i,e. Simplex algorithm). Unf
ortunately, the numerical efficiency of the S.L.P. method depends meaningfu
lly on a proper choice of the move limits that are adopted for the optimisa
tion variables.
In this paper the effect on the numerical solution of different move limits
definition criteria has been investigated. Two different approaches (CGML
and LEAML) for the definition of the move limits in Sequential Linear Progr
amming are described and compared in terms of numerical efficiency in the s
olution of six problems of weight minimisation of bar trusses structures. (
C) 2000 Elsevier Science Ltd, All rights reserved.