ATUALIZAÇÃO DE UM MODELO NUMÉRICO EM ELEMENTOS FINITOS DE UMA TORRE EÓLICA PARA AVALIAÇÃO DE PERFORMANCE ESTRUTURAL

Resumo

Wind towers installed around the world have a particular behavior according to their
mechanical properties due to their ability to answer these questions in relation to their structural
performance. Consisting of steel elements and with a unique cross section, each tower has its own design
parameters and state variables that induce other analytical characteristics to be studied. From these we
can find a real model of a wind tower and from this, develop numerical analytical studies, encourage
and monitor the execution conditions and structural behavior. This paper presents a calibration of an
experimental model of a wind tower studied by Christophe Thierry Loraux in 2018 in Switzerland.
Hoping to determine the optimized natural frequencies of the structure, take the numerical-experimental
model as a future research tool for static and dynamic analysis. The numerical optimization performed
was based on the Powell Subproblem Approximation method proposed in 1964, where the limitation of
inaccurate parameters of the tower rotor set mass and the rigidity of the soil-structure interaction is
restricted in the motivation to determine the values. of the unlimited natural frequencies of the
experimental model.