Engineering Mechanics

Proceedings Vol. 22 (2016)

ENGINEERING MECHANICS 2016

22nd INTERNATIONAL CONFERENCE
May 9 – 12, 2016, Svratka, Czech Republic

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Editors: Igor Zolotarev and Vojtěch Radolf

ISBN 978-80-87012-59-8 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

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GLOBAL TOPOLOGY WEIGHT OPTIMIZATION OF 52-BAR BENCHMARK TRUSS WITH DISCRETE CROSS-SECTIONS

Tyburec M., Lepš M.
pages 591 - 594, full text

Truss topology weight optimization problem with discrete cross-sections can be formulated as a mixed-integer linear program (MILP), which is solvable to global optimality. It is however very difficult to obtain proven globally optimal solution, as there usually exist a very large number of possible combinations. This contribution implements several types of additional cuts and solves the problem using a commercial branch-and-bound software Gurobi, hence making it possible to obtain a guaranteed globally optimal solution. Such solution can then be used as a lower bound for sizing optimization.

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All papers were reviewed by members of the scientific committee.

Engineering Mechanics

International Conference

Proceedings Vol. 22 (2016)

ENGINEERING MECHANICS 2016