Probabilistic determination of critical wave height for a multi-degree of freedom capsize model |
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Authors: | Leigh McCue Armin Troesch |
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Institution: | aAerospace and Ocean Engineering, Virginia Tech, Blackburg, VA 24061–0203, USA;bDepartment of Naval Architecture and Marine Engineering, University of Michigan, 2600 Draper Road, Ann Arbor, MI 48109, USA |
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Abstract: | In this paper a statistical methodology is extended to the nonlinear multi-degree of freedom vessel capsize problem in random seas. It is demonstrated that the study of transient motions, through analysis of the erosion of the vessel's safe basin mapped in the space of initial conditions Soliman, M.S. Thompson, J., 1991. Transient and steady state analysis of capsize phenomena. Applied Ocean Research 13, 2], leads to significantly less conservative and potentially more accurate predictions of ultimate dynamic stability. The work presented herein pairs this approach with a statistical framework to yield feasible stability criteria. |
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Keywords: | Capsize Multiple degrees of freedom Safe basin Integrity curve Probability density function Random seas |
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