Structural health monitoring for layered structure using a force identification approach

In this study, we proposed a structural health monitoring and diagnostic method for layered structures using the force identification of approach. This belongs to primary diagnosis one, its purpose is identify location abnormality quickly after detection. A feature that displacement change caused by an in structure considered applying additional normal structure. early stage abnormality, stiffness certain layer will change, so local identified, accuracy reconstructed estimated. actual structure, vibration characteristics may differ from those obtained mathematical model. We also predicting frequency response function abnormal state based on difference between measurement model state. First, five-layered as numerical example validated method. When applied three types conditions, found could be diagnosed correctly. Next, constructed experimental verified applicability created type condition showed As described above, validity were clarified.