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Quantitative Bridge Inspection Ratings Using Autonomous Robotic Systems, Anil K. Agrawal
Quantitative Bridge Inspection Ratings Using Autonomous Robotic Systems, Anil K. Agrawal
Project IM-2
Impact sounding has been recognized as an effective technique to detect delamination in concrete structures, such as concrete decks. An enormous amount of sounding data can be generated/collected by the autonomous inspection systems equipped with impactors and microphones. However, the main challenge in the practical application of this technology is the development of advanced data analysis approaches for identifying defects from impact sounding data. In this study, the empirical mode decomposition (EMD) analysis and power-spectral density (PSD) analysis are combined to extract useful features of sounding data generated by the impact hammer. It has been found that the EMD method …