Trihedral lattice supports geometry optimization according to the stability criterion

The study proposes a technique for optimizing trihedral lattice tower structures from the condition of maximum critical load. Towers with cross section elements in form round pipes are considered. load is represented by horizontal concentrated force at upper end tower, simulating operation wind turbine. A constraint on constancy mass structure introduced. variable parameters width which varies height, height panels, external diameters cross-section chords and lattice. solution nonlinear optimization problem performed MATLAB environment using Optimization Toolbox Global packages. constant taken as initial approximation. calculation finite element method linear formulation solving eigenvalue problem. To solve problem, interior point method, pattern search genetic algorithm used. efficiency listed methods compared. It has been found that most efficient. optimal compared to same increased 2.3 times.