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HYDROELASTIC MODEL FOR BOTTOM SLAMMING

A. Bereznitski, Postnov

Open publisher page 4 citations

Abstract

This paper extensively studies the effect of hydroelasticity for the 2D problem of bottom slamming. A number of wide-shaped structures are considered for water penetration at small deadrise angles. The effect of hydroelasticity is studied as a function of different parameters influencing the impact interaction. These parameters include various stiffness of the structure, presence of entrapped air between the structure and the water surface, and water penetration at different deadrise angles. The primary objective is establishment of range, within which hydroelasticity plays an important role. This range shows when the hydroelasticity should be taken into account and in which cases it can be skipped. The problem is studied with application of MSC.Dytran code. At the same time, for verification purposes, a specific case is compared with results obtained with the application of a self-developed code.

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What this paper is about

This paper extensively studies the effect of hydroelasticity for the 2D problem of bottom slamming. A number of wide-shaped structures are considered for water penetration at small deadrise angles. The effect of hydroelasticity is studied as a function of different parameters influencing the impact interaction. These parameters include various stiffness of the structure, presence of entrapped air between the structure and the water surface, and water penetration at different deadrise angles. The primary objective is establishment of range, within which hydroelasticity plays an important role. This range shows when the hydroelasticity should be taken into account and in which cases it can be skipped. The problem is studied with application of MSC.Dytran code. At the same time, for verification purposes, a specific case is compared with results obtained with the application of a self-developed code.

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Available abstract

This paper extensively studies the effect of hydroelasticity for the 2D problem of bottom slamming. A number of wide-shaped structures are considered for water penetration at small deadrise angles. The effect of hydroelasticity is studied as a function of different parameters influencing the impact interaction. These parameters include various stiffness of the structure, presence of entrapped air between the structure and the water surface, and water penetration at different deadrise angles. The primary objective is establishment of range, within which hydroelasticity plays an important role. This range shows when the hydroelasticity should be taken into account and in which cases it can be skipped. The problem is studied with application of MSC.Dytran code. At the same time, for verification purposes, a specific case is compared with results obtained with the application of a self-developed code.

Key concepts: Slamming, Hydroelasticity, Stiffness, Structural engineering, Engineering, Range (aeronautics), Marine engineering, Geology

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