A COMPARISON OF TRUSS STRUCTURAL OPTIMIZATION TYPES WITH AND WITHOUT BUCKLING DYNAMIC CONSTRAINTS

Abstract

Most research to date which covers the topic of truss structural optimization either doesn’t consider, or uses fixed constraints for buckling. This paper presents a comparison of truss structural optimization types with and without the use of Euler buckling dynamic constraints. The difference is presented on a standard test model with 17 bars using continuous variables for cross section and node positions. The optimization method used is genetic algorithm for optimizing sizing, shape, topology, and their combinations. The implementation of dynamic constraints significantly increases the complexity of the calculations, however the results of using such an approach leads to practically applicable results.