Collision Strength of LNG Carriers (eBook)

Published Date

January 2000

Collision Strength of LNG Carriers (eBook)

(Excludes any applicable taxes)

This paper shows how the finite element method based on explicit time integration has been used with much success in ship collision analysis. (9pp)

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The collision energy absorbing characteristics of the side structure of an LNG carrier that has the spherical type cargo containment system is analyzed. A failure mechanism of the double hull side structures of 135,000 m3 class LNG carrier under a sideways collision event has been simulated by using the detailed finite element calculations.

In ship collision analysis, the finite element method based on explicit time integration has been used with much success. The application of the finite element calculation and a simplified collision mechanics allowed to investigate the effect of bow shape and the initial contact position on side shell of collided ship. A finite element modeling technique that ensures the behavior of the structural members and the rigid body motion of the ship is required.

In the numerical simulation of the ship-to-ship collision,the effect of the colliding ship draft condition and the bow shapes that depend on the colliding ship types are investigated. The critical collision energy that is absorbed by side structures of a collided ship until the fore-end of colliding ship arrives at the boundary of the LNG cargo tank is calculated. The critical speed of specified colliding ships which can not penetrate the boundary of the LNG cargo tank of the collided ship under collision accident is also evaluated.

Paper Delivered by:
Ick-Hung Choe
Jae-Hyun Kim
Ho-Jong Ahn
Oi-Hyun Kim
(all of Hyundai Heavy Industries Co., Ltd)

Prepared for:
Gastech Houston 2000

For over 45 years, the Gastech Exhibition & Conference has been at the forefront of the international gas and LNG market. This world-renowned event is regarded as the most significant meeting place for gas and LNG professionals, where the global industry gathers to do business.

Gastech hosts major IOCs, NOC’s, global utility companies, EPC contractors, shipbuilders, pipeline companies, manufacturers, distributors, technology and service providers, all who play an active role in the global energy value chain.

Title: Collision Strength of LNG Carriers (eBook)
Product Code: 4433g105
Published Date: January 2000

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