Abstract:
A topology optimization procedure for double layer grids which have square-on-square
configuration and top and/or bottom layers are curved in one or two directions is presented. The
number of nodes is treated as design variables during optimization process; as a result, the
number of members varies. The configuration of grid structures is generated using the graph
product operations. The coordinates of nodes and the cross sections of members are taken as
continuous and discrete design variables, respectively. As an optimizer, a new swarm based
optimization algorithm called Artificial Bee Colony algorithm is used. A design example is
included to show the applicability of the presented procedure for optimization of double-curved
double-layer grids.
