Ship collision mitigation: redesign of an oil taner side-shell

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Conference8th Canadian Marine Hydromechanics and Structures Conference, 16-17 October 2007, St. John's, NL
AbstractStructural 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 side-shell plate stiffening arrangement and transverse web frames are redesigned, with weight and structural capacity as design constraints. Explicit-dynamics numerical models using LS-DYNA 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.
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AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NRC number6523
NPARC number8895401
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Record identifier4bb2ebb0-2ec0-4623-8408-3c6fd276ef89
Record created2009-04-22
Record modified2016-05-09
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