There are several vibration-based Structural Health Monitoring techniques described in the literature. Modal based techniques, which analyze the variations of the modal properties over time to identify damage, are probably a good starting point for your research. Other techniques are based, for instance, on autoregressive models or wavelet analysis, but the principles of vibration based monitoring are almost the same independently of the considered technique. Health monitoring, in fact, is always based on the comparison of two states of the structure, of which one is assumed to be healthy.

You can start from my papers on automated OMA and vibration based health monitoring and the references therein to start your research.

Best regards,

CR

Thank you Ariadne Tsambani and C.Rainieri

Best regards,

b.sunardi

Thank you Hassan Sarmadi

Best regards,

b.sunardi