Theses and Dissertations
Comparison of approaches for determining the failure of stiffened cylindrical shells
(Monterey California. Naval Postgraduate School, 2002)
The thesis compares the analytical solution, two marine classification society design rules, and two design guides against experimental results for predicting the failure modes (general instability, axisymmetric buckling, ...
Nonlinear dynamics of close proximity ship towing
(Monterey California. Naval Postgraduate School, 2002-12)
The goal of this study is to investigate the nonlinear dynamics of two ships in close proximity towing. The sway and yaw dynamics of both the leading and the trailing ships were included in the formulation. Previous studies ...
Tracking control of autonomous underwater vehicles
(Monterey, Calif. Naval Postgraduate School, 2002-12)
Recovery of Autonomous Underwater Vehicles (AUVs) can often be an autonomous operation itself. In the case of an AUV that is launched and recovered at some significant depth below the surface, the recovery platform to which ...
Microstructure characterization of friction-stir processed nickel-aluminum bronze through orientation imaging microscopy
(Monterey, California. Naval Postgraduate School, 2002-09)
The effect of friction-stir processing (FSP) on the microstructure of a cast nickel-aluminum bronze (NAB) material has been characterized by various micro-analytical methods including orientation imaging microscopy (OIM). ...
An approach for impression creep of lead-free microelectronic solders
(Monterey, California. Naval Postgraduate School, 2002-06)
Currently, the microelectronics industry is transitioning from lead-containing to lead-free solders in response to legislation in the EU and Japan. Before an alternative alloy can be designated as a replacement for current ...
Multi-scale analysis of a 2/2-twill woven fabric composite
(Monterey, California. Naval Postgraduate School, 2002-03)
A micro-mechanical unit-cell model was developed for 2/2-twill woven fabric composites. A multi-scale bi-directional micro/macro-mechanical analysis technique was applied to the model in an effort to estimate effective ...
A design procedure for seakeeping analysis of close proximity ship towing
(Monterey, Calif. Naval Postgraduate School, 2002-03)
The purpose of this thesis is to develop an efficient analysis and design procedure for assessing the seakeeping behavior of surface ships in close proximity towing. The problem is formulated by using the heave and pitch ...
Experimental studies of noise/vibration damping for undersea warfare applications
(Monterey, California ; Naval Postgraduate School, 2002-06)
Maintaining silence underwater is an important issue with undersea warfare. One technique to reduce noise radiation is to use a passive noise/vibration material. The objective of this research was to investigate the vibration ...
Study of processing and microstructure of a superplastic 5083 aluminum alloy
(Monterey, California. Naval Postgraduate School, 2002-03)
Orientation Imaging Microscopy (OIM) methods were applied to the analysis of the microstructure and microtexture as well as the deformation and failure modes of superplastic AA5083 aluminum alloys. Annealing of a cold-rolled ...
Parameter optimization of seismic isolator models using recursive block-by-block nonlinear transient structural synthesis
(Monterey California. Naval Postgraduate School, 2002-09)
In order to increase building safety under earthquake motions, there has been increasing interest in base isolation with passive isolators. Computer modeling is an important aspect of the building design and evaluation ...
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