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- W2763378411 abstract "During ship ice interaction events (i.e. rams with multi-year ice), the occurrence of local pressures vary in time and space. A link between local pressures and global forces is the sum of the local forces from n High Pressure Zones (HPZs) across the interaction face equals the total force transmitted into the structure. In this paper, a model for HPZ density, and force during ship ram events is presented. The occurrence and intensity of HPZs on panel areas were simulated using a Poisson process and an exponential distribution for HPZ force. The model is extended to consider HPZ occurrence in time through a ramming event, modeling HPZ rate. Such a model allows the designer to determine baseline ‘parent’ local pressure design parameters based on vessel size and expected operational speed. The faster a ship operates through an ice regime, the greater the HPZ rate. Larger and faster ships will penetrate further, having longer interaction durations and hence a greater number of HPZs forming (unless, for example, the ship passes through a ridge). Rates too will vary along the vessel being greater on the bow and least from mid-body to stern. For design, we are interested in the maximum local pressure on a single panel area through the ram duration. The results are compared with previous local pressure models for design." @default.
- W2763378411 created "2017-10-20" @default.
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- W2763378411 date "2017-06-25" @default.
- W2763378411 modified "2023-09-23" @default.
- W2763378411 title "Local Design Pressures During Ship Ram Events Modeling the Occurrence and Intensity of High Pressure Zones" @default.
- W2763378411 doi "https://doi.org/10.1115/omae2017-62545" @default.
- W2763378411 hasPublicationYear "2017" @default.
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