Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"beam seas"”.
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Attitude control of an underwater vehicle subjected to waves
… dominated wave force regime, both in head seas and in beam seas. Inertia dominated wave forces are typical of those encountered by a 21 inch diameter, torpedo shaped underwater vehicle operating in coastal waters and sea state 2. Strip theory is used to develop transfer function phase and …
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Dynamic stability assessment of damaged passenger ships using a time simulation approach
… comprises coupled sway-heave-roll motions in beam seas while taking into consideration progressive flooding as well as water accumulation. A series of comprehensive model experiments have been specifically designed and undertaken to investigate the nature and magnitude of couplings in the …
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Innovative hull design for servicing offshore wind turbines
… friction and bollard pull, for quartering and beam seas sway and roll are important. Heaveplates provide benefits, however increasing heave damping changes the principal fail condition from vertical slips to horizontal disconnects. Some of these failure cases could be predicted by vessel …
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Small craft motion in reflected long-crested seas
… the sensitivity of response. Response in head seas generally agreed with experimental results with the notable exception of the surge resonance peak, which was predicted to be much too high. However, the addition of an extra 5%damping lowered this peak to experimental levels without …
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Analysis and Modeling of Hydrodynamic Components for Ship Roll Motion in Heavy Weather
… where ships may experience excitation from beam, or near beam, seas present a worst case scenario in heavy weather. The behavior of a ship in this condition should be considered in both the design and assessment of seakeeping performance. In this study, hydrodynamic component models of roll …
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A New Method to Predict Vessel Capsizing in a Realistic Seaway
A recently developed approach, in the area of nonlinear oscillations, is used to analyze the single degree of freedom equation of motion of a oating unit (such as a ship) about a critical axis (such as roll). This method makes use of a closed form analytic solution, exact upto the rst order, and …