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COMBINATION OF SLAMMING AND WAVE INDUCED MOTION: A SIMULATION STUDY

Efstratios Nikolaidis, Paul Kaplan

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Abstract

A Monte-Carlo simulation study is performed in order to estimate the uncertainty in combining low frequency wave and slamming bending moments in ships. The maximum combined bending moment that is obtained by using Monte-Carlo simulation is compared with the bending moments that are estimated by using analytical approximate methods. It is demonstrated that, besides the uncertainties in calculating slamming and wave bending moments, there is a large uncertainty in statistically combining these moments and in calculating the probability of the maximum combined bending moment over a given period of exposure.

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What this paper is about

A Monte-Carlo simulation study is performed in order to estimate the uncertainty in combining low frequency wave and slamming bending moments in ships. The maximum combined bending moment that is obtained by using Monte-Carlo simulation is compared with the bending moments that are estimated by using analytical approximate methods. It is demonstrated that, besides the uncertainties in calculating slamming and wave bending moments, there is a large uncertainty in statistically combining these moments and in calculating the probability of the maximum combined bending moment over a given period of exposure.

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Available abstract

A Monte-Carlo simulation study is performed in order to estimate the uncertainty in combining low frequency wave and slamming bending moments in ships. The maximum combined bending moment that is obtained by using Monte-Carlo simulation is compared with the bending moments that are estimated by using analytical approximate methods. It is demonstrated that, besides the uncertainties in calculating slamming and wave bending moments, there is a large uncertainty in statistically combining these moments and in calculating the probability of the maximum combined bending moment over a given period of exposure.

Key concepts: Slamming, Bending moment, Monte Carlo method, Bending, Moment (physics), Mathematics, Engineering, Structural engineering

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