Ocena stanu konstrukcji belkowych na podstawie zmiany parametrów modalnych wywołanych dodatkową masą

This paper presents the application of the nondestructive damage identification method using an additional parameter introduced to the structure. In this method the damage is identified on the basis of the variations of dynamie parameters without knowledge of the initial values of undamaged structures. In the presented numerical examples, method are applied for the analysis of the dynamic response of cantilever beam for identification position of damage and the extent of damage. The assessment of the state of a structure relies on the comparison of the structure eigen-frequencies obtained from the systems with additional masses placed in different nodes.