UPDATING OF ANALYTICAL MODELS OF EXISTING LARGE STRUCTURES BASED ON MODAL TESTING

The state-of-the-art of experimental structural dynamic's investigations and of Finite Element model updating based on such experimental results as well as the purpose of such investigations are discussed and illustrated. The methods presented are Forced Vibration Testing and Ambient Vibration Testing. It is the goal of both methods to evaluate the structure's modal parameters which reflect the structure's actual static and dynamic boundary conditions and its stiffness and mass properties.