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Showing 1 to 11 of 11 for “"high speed craft"”.
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Slamming of High Speed Craft: A Parametric Study of Severe Cases
High-speed planing craft slamming into waves can cause structural damage to the vessel as well as hinder or injure personnel onboard. As a result, it is one of the primary constraints that limit the operating envelope of high-speed surface vessels. The controlled motion experiments presented in …
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Testing and Modeling of Shock Mitigating Seats for High Speed Craft
… of tests on a shock mitigating seat designed for high speed craft using various input excitations to better understand the relationship between various seat and operational conditions, and the response of the seat. A seat model of the test seat is used for a parametric study of various spring, …
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Slamming of High-Speed Craft: A Machine Learning and Parametric Study of Slamming Events
… are the critical structural design load for high-speed craft. In addition to damaging the hull structure, payload, and injuring personnel, slamming events can also significantly limit operating envelopes and decrease performance. To better characterize slamming events and the factors …
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Hydroelasticity of High-Speed Planing Craft Subject to Slamming Events: An Experimental and Numerical Investigation of Wedge Water Entry
High-speed planing craft operating in waves are subject to frequent water impact, or slamming, as a portion or whole of the craft exits the water and re-enters at high velocity. The global load induced by slamming can cause fatigue-related damages to structures. The local slamming can cause local …
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An Experimental Study of the Fluid- Structure Interactions of Water Entry of Compliant Structures
… different fields of engineering. In the case of highly flexible panels, an application for this topic is on drag reduction due to shape reconfiguration of panels near the free surface to support further development of undulatory propulsors. Moreover, it has been an important concept in the study …
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Advancements of Stepped Planing Hulls
… displacements and over a range of four different speeds in calm water. Seven of these configurations were tested at two different Longitudinal Center of Gravity (LCG) locations. Of all the configurations tested, the stepped hull configurations showed reduced resistance compared to the unstepped …
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Hydrodynamic behaviour of gliding hydrofoil crafts
A new type of high-speed craft, called a Gliding-Hydrofoil Craft (GHC), has recently been developed in Jiangsu University of Science and Technology, China. This craft is similar to a planing hull but with a hydrofoil in the front part of its body. The fixed hydrofoil improves the seakeeping …
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The Design, Verification, and Validation of a Personal Hydrofoil Craft
… of designing and building a Personal Hydrofoil Craft capable of carrying two people, featuring the distinctive capabilities of foiling and diving. This thesis examines the attributes of fully submerged hydrofoils and their prospective advancements. Diverse configurations of fully submerged …
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Probabilistic optimization of vibrational systems under stochastic excitation containing extreme forcing events
… problem. The method is also assessed in higher-dimensional problems involving linear elastic rods coupled to a nonlinear energy harvester. In the second part of this thesis, we consider the problem of mechanical systems excited by stochastic loads with non-stationary characteristics, …
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Direct and adaptive quantification schemes for extreme event statistics in complex dynamical systems
… the 'core' of the pdf, although potentially very high-dimensional, can be efficiently described by uncertainty quantification schemes that resolve low-order statistics. On the other hand, the intermittent component, related to the tails, can be described in terms of a low-dimensional …
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A Theory and Analysis of Planing Catamarans in Calm and Rough Water
A planing catamaran is a high-powered, twin-hull water craft that develops the lift which supports its weight, primarily through hydrodynamic water pressure. Presently, there is increasing demand to further develop the catamaran's planing and seakeeping characteristics so that it is more …