ROV Based Acoustic Analysis Approach and Non-destructive Testing of Harbor Concrete Structure

Spectral analysis of surface wave condition monitoring is related to the identification of certain vibration parameters due to surface waves and their measurement with a view to diagnose under water part of concrete structures. In this research work, it has been discussed how the use of FFT analyzers can yield fault information based on spectrum and cepstrum analysis of detected signals and it has been shown how this technology is utilized to detect defected part of concrete structures in the constructed part. This paper addresses the evolving subsea specific designed ROV with dedicated impactor and vibration sensor arms as a part of associated maintenance arrangement. Current research achievements apply to the expert system techniques in the diagnostic system of subsea concrete based on the concept of spectrum and cepstrum analysis of detected signals and the method of measuring defected part of concrete structures without any physical destruction by testing the suspected sections.