A step forward towards developing an uncertainty analysis procedure for roll decay tests

The general approach to estimate ship roll damping is to perform roll decay tests in calm water, as they represent the easiest and approach and the most efficient in terms of time. However, how to carry out roll decays is not simple, as many parameters may affect the results. By using proper mechanical devices to initially heel the ship, the results are more reliable, however, it is deemed necessary to estimate the uncertainty associated with the determined roll damping coefficients. This paper presents an approach of developing an uncertainty analysis procedure for roll decay tests