A Study on Estimation Possibility of Thickness of Beam by Using Structural Intensity

The purpose of this study is to make clear the influence of the shape of structure on vibration energy. The vibration energy flow is expressed by structural intensity. In this paper, we use beams with suddenly changed cross section. We performed the numerical analysis and the experiment for the structural intensity of these beams. Then, we investigate the influence of the suddenly changed cross section of beam on the structural intensity. Furthermore to verify the obtained results, we perform an experiment on vibration energy flow of the beam. As a result, it is clarified that the structural intensity is one of the effective parameters for structural health monitoring.