A practical analysis of the risk of pure loss of stability during deck flooding using the example of the vessel "Olympic Intervention IV"

Abstract

The mandatory minimum ship stability criteria prescribed by the International Intact Stability Code are based on accident statistics and do not take into account the dimensions and hull contours of specific ships when calculating their performance in rough seas. Since the Code's adoption in 2008, scientists from various countries have conducted extensive research assessing the dynamic stability of various types of ships in rough seas. Modern mathematical modeling allows for the accurate prediction of wind-induced wave and swell fields in various regions of the world's oceans. Therefore, the IMO Maritime Safety Committee adopted Interim Guidelines on the Second Generation Intact Stability, as set out in Circulars No. 1627 and No. 1652. These guidelines state that for some vessels, the calculation methods for some criteria may yield unreliable results. This is particularly true for low-sided vessels susceptible to open deck flooding when calculating the so-called pure loss of stability. This article attempts to refine the methods for calculating the stability vulnerability of low-sided vessels using this criterion.