Theses and Dissertations
Plastic sheer buckling of ship hull plating induced by grounding
(Monterey California. Naval Postgraduate School, 1992-06)
A study was conducted to develop an analytical model for predicting the horizontal resistance due to in-plane shear of ship's hull bottom plating that is undergoing deformation induced by grounding. First, four models were ...
Coupled roll and directional stability characteristics of surface ships.
(Monterey, California. Naval Postgraduate School, 1992-06)
The problem of roll, sway and yaw motions of surface ships is considered. A
mathematical model is developed which consists of the nonlinear maneuvering equations
and incorporates cross coupling between sway force, yaw ...
Correlation of flux composition and inclusion characteristics with submerged arc weld metal properties in HY-100 steel
(Monterey, California. Naval Postgraduate School, 1993-09)
Submerged arc weldments of HY-100 steel prepared under standard conditions with five commercially available fluxes were analyzed to discern a basis for the variation in mechanical properties associated with different flux ...
Multiple input sliding mode control for autonomous diving and steering of underwater vehicles
(Monterey, California: Naval Postgraduate School, 1990-12)
Design and analysis of multiple input autopilots using sliding modes in order to achieve accurate horizontal and vertical plane control of an autonomous underwater vehicle over a wide variation of speeds is presented. The ...
Autopilot design for autonomous underwater vehicles based on sliding mode control
(Monterey, California: Naval Postgraduate School, 1990-06)
An autopilot is designed using Sliding Mode Control Theory that can control the speed and heading of a full six degree of freedom, nonlinear model that allows speed and heading to be treated as separate systems. Once control ...
Transient response analysis of the 72 Inch TAC-4 ruggedized shipboard rack subjected to an underwater explosion event
(Monterey, California. Naval Postgraduate School, 1998-06)
The finite element modeling and subsequent transient analysis of the 72 Inch TAC-4 Rugged Rack computer system (configurations 0001AA and 0003AA only), currently employed in U.S. Navy shipboard applications, has been ...
A computational and experimental study of flush heat sources in liquids
(Monterey, California. Naval Postgraduate School, 1990-06)
A numerical investigation of two-dimensional natural convection flow and heat transfer from a substrate-mounted flush heat source immersed in a liquid-filled square enclosure was conducted. The study is relevant to direct ...
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