Assessment of Seagoing Ships Longitudinal Strength in the Context of International Rules, Important Factor for Safe Operation

The paper is focused on the ship hull safety problems related to the longitudinal strength of the ship during design, construction and service in context of International Goal-Based Ship Construction Standards carried out by International Maritime Organization (IMO). The study underscores the importance of ship longitudinal strength for prevention of theirs losses, mentioning the most important measures taken by IMO for improvement of ship safety. In the work, a critical analysis of the methodology of the International Association of Classification Societies (IACS) for calculation of sectional efforts induced by waves in ship’s hull is described. Finally, a calculation base proposal for improvement the efforts on quasi-static layout of the ship on wave is performed.

MSC 99及海上自主航行水面船和有关SOLAS修正案简介

海上安全委员会第99届会议(MSC 99)围绕"海上自主航行水面船"(MASS)的术语、定义、目标和自主等级进行了讨论。目前尚无正式的自主等级的定义,拟议中的自主等级包括四级。MSC 99以MSC 380(94)决议通过了SOLAS修正案(2018年5月24日通过),预计2020年1月1日生效,该修正案对SOLAS第II-1、IV章和附录作出修正。"目标型新船建造标准"(GBS)是国际海事组织(IMO)的一项战略计划,其具有5个层面,IMO已通过了与GBS有关的SOLAS修正案。MSC 99原则批准了经修订的《散货船和油船目标型船舶建造标准符合性验证指南》的海安会决议草案,以期MSC 100通过;并同意该指南应于其通过后一年生效。文中列出了MSC 99通过的17 项MSC决议。