IJME 218

Paper Title: A New Method for Assessing the Safety of Ships Damaged by Grounding

Authors

J K Paik, D K Kim, D H Park and H B Kim, Pusan National University, Korea
M S Kim, Lloyd’s Register Asia, Korea

Summary

The primary aim of the present study is to propose an innovative method for assessing the safety of ships which have suffered accidental or in-service damages. Only a small number of probable scenarios for accidental or in-service damage representing all possible damage scenarios are selected using a sampling technique in which the random variables affecting the damage are probabilistically characterized. A damage index for the corresponding damage scenario is defined as a function of damage characteristics such as location and extent of the damage. The residual strength performance of a ship with the corresponding damage scenario can then be calculated by analytical or numerical methods. Once this process has been carried out for each of the damage scenarios selected, a diagram relating the residual strength performance to the damage index (abbreviated as the R-D diagram) can be established. This diagram will be very useful for a first-cut assessment of a ship’s safety immediately after it has suffered structural damage. The diagram can also be used to determine acceptance criteria for a ship’s safety against accidental or in-service damage. An applied example is shown to demonstrate the applicability of the proposed method in terms of developing a diagram between the ultimate longitudinal strength versus grounding damage index for four types of double-hull oil tankers VLCC, Suezmax, Aframax, and Panamax

Reference

Transactions RINA, Vol 154, Part A1, International Journal Maritime Engineering, Jan-Mar 2012

DOI Number

DOI No: 10.3940/rina.ijme.2012.a1.218

Search and Order IJME papers

All International Journal of Maritime Engineering papers are listed in the RINA Publications Database. You can search the database by author name and paper title. Publications may be ordered and paid for online. Other publications are also listed, some of which may be downloaded free of charge. Follow the link to Search Publications & Order.