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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 72
IDENTIFICATION, CONTROL AND OPTIMISATION OF ENGINEERING STRUCTURES Edited by: G. De Roeck and B.H.V. Topping
Paper IV.1
Topological Design Solutions for Structures under Transmissible Loads M.B. Fuchs and E. Moses
Department of Solid Mechanics, Materials and Structures, The Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel M.B. Fuchs, E. Moses, "Topological Design Solutions for Structures under Transmissible Loads", in G. De Roeck, B.H.V. Topping, (Editors), "Identification, Control and Optimisation of Engineering Structures", Civil-Comp Press, Edinburgh, UK, pp 95-100, 2000. doi:10.4203/ccp.72.4.1
Abstract
Optimal topological design of structures is a technique
for designing optimal structural solutions without any
preconception. Starting from a design region circumscribing
the result, a given volume of material, the applied
loads and the support conditions, the method produces
the optimal solution in an iterative manner or by
a mathematical programming extremization algorithm.
The objective function is traditionally the compliance
but other merit functions have also been used. It is indicated
that by determining the load position one imposes
a preconception, since necessarily the structure will connect
the force locations to the reactions. It was therefore
suggested, wherever possible, to let the loads slide along
their line of action and allow the algorithm to determine
optimal topologies with optimally located forces. The inclusion
of transmissible forces in the design formulation
helps in producing the main load-carrying part of the
structure by removing all secondary, local load transfer
components.
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