A model for deployment of a freefall lifeboat from a moving ramp into waves |
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| Authors: | W Raman-Nair M White |
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| Affiliation: | 1. National Research Council Canada, Institute for Ocean Technology, Arctic Avenue, P.O. Box 12093, St. John’s, NL, Canada, A1B 3T5
2. Virtual Marine Technology, 20 Hallett Crescent, St. John’s, NL, Canada, A1B 4C5
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| Abstract: | The equations of motion of a freefall lifeboat are formulated using Kane’s method. Deployment from a moving ramp is assumed to occur in a known plane and a 2D model suffices. A segmented approach is used to model ramp contact. A separate 3D model is presented for the water entry phase. The hydrodynamic loads at water entry are also modeled using a segmented approach. The equations are solved numerically using a standard Runge–Kutta MATLAB routine. |
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