Optimizasyon tabanlı sonlu elemanlar modeli güncellemesi yönteminin 3 boyutlu baskı kullanılarak yapılan modellere uygulanması

Nowadays the study of dynamic behavior of complex structures has become a trend. Model updating is one of the tools developed for verifying the accuracy of finite element models. In this research, the method for computing model updating on the finite element model and the experimental modal analysis of structural systems is developed. The case study considered in this work is a 3D printed structure that was modelled as a two-story shear building system with an irregular torsion. A preliminary numerical model of this two-story shear building system is developed by using SAP2000 and the experimental modal parameters data are collected at the laboratory by ambient vibration and white noise test, then are modelled by ARTeMIS pro. The identification method developed in this study is based on numerical techniques for the identification of systems in the time domain. The results obtained from the numerical model and experimental model were uploaded to FEMtools software to improve the match between the dynamic properties of the analysis model and the experimentally estimated modal data for updating the numerical model. After updating, it was found that some material parameters (Such as Young modulus and density) were optimized.