ABSTRACT
Application of risk-based design methods that includes structural reliability of damaged ship requires rational evaluation of all pertinent random variables, including wave loads of damaged ship (Prestileo et al. 2013) that was the motivation for some of recent studies on that subject. Thus, Folsø et al. (2008) have performed seakeeping computations on a damaged ship by the 3D linear hydrodynamic method. The damage scenarios corresponded to water ingress into the forepeak and/ or the double hull ballast tanks of the ship sailing in full load. For the case of the flooded ballast tank in the midship area, they obtained Response Amplitude Operators (RAOs) of the VWBM larger than those evaluated for the intact condition. Interesting conclusion from the paper is that keeping a bow quartering encounter angle, with the higher freeboard on the weather side, minimizes VWBM.
