Issue 49

E.U.L. Palechor et alii, Frattura ed Integrità Strutturale, 49 (2019) 614-629; DOI: 10.3221/IGF-ESIS.49.56

Figure 14 : LabView control panel.

The flowchart of the methodology validation The following flowcharts presents a scheme for the validation of the proposed damage identification method – see Fig. 15:

Damage identification Method propose

Discretization of Beam  n elements   n+1 nodes

Simulation of  Damage

Positioning  Additional Mass  at node 

Last Position of Mass

Impact Force  

Get time signal  

Plotting of discrete values: Frequencies vs. mass position

Application of Frequency  Correction Method 

Add Gaussian  Noise

Identification of the  Maximum Values of  the FFT

Interpolation values  (Cubic Spline)

Application of  Exponential Window 

Application of  Discrete  Wavelet Transform (DWT)

Application of Fast  Fourier Transform (FFT)

Localization of Damage

Figure 15 : Flow chart of the methodology proposed.

621