Ship Collision Mitigation: Redesign of an Oil Tanker Sideshell

Quinton, Bruce (2007) Ship Collision Mitigation: Redesign of an Oil Tanker Sideshell. In: Canadian Marine Hydromechanics and Structures Conference (CMHSC), October 16, 2007, St. John's, Newfoundland.

	[English] PDF (Migrated (PDF/A Conversion) from original format: (application/pdf)) - Published Version Available under License Creative Commons Attribution Non-commercial. Download (622kB) [English] PDF - Published Version Available under License Creative Commons Attribution Non-commercial. (Original Version)

Abstract

Structural design has been shown to be an effective tool for reducing collision damage and cargo spill of a struck oil tanker given a collision. This paper explores the structural redesign of a double-hull oil tanker side-shell in order to improve its collision performance with respect to hull rupture, damaged area, and oil-outflow. In particular, the sideshell plate stiffening arrangement and transverse web frames are redesigned, with weight and structural capacity as design constraints. Explicit-dynamics numerical models using LSDYNA show that reducing the structural rigidity of the tanker’s side-shell, while maintaining the same plate stiffening steel weight may: increase the efficiency of the side-shell in converting kinetic collision energy into elastic strain energy; reduce the longitudinal and overall damaged areas; and ”compartmentalize” the damage so that residual stresses decrease quickly with radial distance from the point of impact.

Actions (login required)

View Item