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Proceedings Papers

Power Spectrum for Surface Description of Corroded Ship Structure From Laser Scan

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Karoline M. Neumann, Sören Ehlers
Proc. ASME. OMAE2019, Volume 3: Structures, Safety, and Reliability, V003T02A015, June 9–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-95907
https://doi.org/10.1115/OMAE2019-95907
... and thickness are produced from 3D laser scan of real corroded mild steel specimens from a 30 year old ship using Fast Fourier Transform (FFT). The frequency distribution describes the spatial variability, wherefrom the autocorrelation function (ACF) is deduced. A log-log fit is made to the power spectrum...
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Topics: Corrosion, Lasers, Ships, Steel