Comprehensive optimization of frame structures

Abstract

AbstractThe comprehensive optimization of truss and frame structures considers all three kinds of optimization aspects: topology, shape, and sizing of members. However, the simultaneous solution of the problem increases the complexity of the problem and leads to high demands for the used optimization algorithm. We propose to split the process into two tasks using specialized algorithms for each stage. First, a phase field model evolves the topology as basic design. By automatic model reduction, we set up the simplified beam model via an adapted Stentiford‐algorithm linked to interface parameters. Then, connection topologies, nodal positions, and cross sections are simultaneous optimization parameters of an Evolution Strategy.