Design of cold-formed thin-walled beams with application of an expert system |
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| Authors: | R. Kasperska M. Ostwald D. Mikolajewski |
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| Affiliation: | 1. Institute of Technical and Computer Education, University of Zielona Gora, ul. Szafrana 4, 65-516 Zielona Gora, Poland;2. Institute of Applied Mechanics, Poznan University of Technology, ul. Piotrowo 3, 60-965 Poznan, Poland |
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| Abstract: | The aim of this paper is to present the problem of optimal design of selected cross section shapes of the thin-walled coldformed beams under combined loads. The optimization problem is given as the bicriteria one, where the cross-sectional area of the thin-walled beam and the deflection of the beam centre are the objective functions. The work provided optimal parameters of cross-sections of the beams, satisfying the conditions of general and local stability, strength, limiting loading capacity of the beam, structural, technological and exploitation constraints. This paper outlines the application of a knowledge-based expert system built to assist engineers in the designing process and multicriteria optimization of cold-formed thin-walled beams. The paper includes some exemplary numerical results in the form of figures. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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