Theses and Dissertations
Characterization of preheated and non-preheated HY-80 steel weldments by transmission electron microscopy
(Monterey, California. Naval Postgraduate School, 1983)
Preheating HY-80 steel weldments is standard procedure, but it is an expensive and time consuming step in the fabrication of hull structures. The microstructures and hardness profiles of both a preheated (250 F--121 C) and ...
Testing of a shrouded, short mixing stack gas eductor model using high temperature primary flow.
(Monterey, California. Naval Postgraduate School, 1982-10)
An existing apparatus for testing models of gas eductor systems using high temperature primary flow was redesigned and modified to provide improved control and performance over a wide range of gas temperatures and flow ...
Flow visualization study of natural convection from a heated protrusion in a liquid filled rectangular enclosure.
(Monterey, California. Naval Postgraduate School, 1983-12)
A flow visualization study of natural convection in a
liquid filled rectangular enclosure with a small heater protruding into it from one vertical wall was conducted. The
top and bottom horizontal surfaces of the enclosure ...
Design optimization of Marine Reduction Gears
(Monterey, California. Naval Postgraduate School, 1983-09)
The development and use of the FORTRAN program MARGO (Marine Reduction Gear Optimization) is described. MARGO performs design analysis, weight minimization, and a rudimentary form of noise minimization using the general ...
A microstructural investigation of the shear distortions and energetics of motions observed in an aged high damping 53Cu-45Mn-2Al alloy
(Monterey, California. Naval Postgraduate School, 1989-03)
The shear distortions developed upon aging of a 53Cu-45 Mn-2Al alloy were studied using transmission electron microscope image extinctions and diffraction spot streak analysis. It was determined that a lattice distortion ...
Probabilistic design using numerical optimization.
(Monterey, California. Naval Postgraduate School, 1982-10)
A FORTRAN program has been developed to allow for the use of probabilistic design methods in the numerical optimization process. The program was written as a set of subroutines for COPES (Control Program For Engineering ...
An experimental investigation of the effect of condensate inundation on heat transfer in a horizontal tube bundle.
(Monterey, California. Naval Postgraduate School, 1980-03)
A test facility to evaluate the effect of condensate inundation on heat transfer within a horizontal tube bundle was designed, constructed and validated. Five 15.9 mm (5/8 in.) nominal outside diameter, smooth stainless ...
An analysis of the performance of a vertically oriented, gas loaded, variable conductance heat pipe
(1986-03)
An analysis of steady state operation of a vertically oriented, variable conductance heat pipe is presented. The effects of binary mass diffusion, axial pipe wall conduction, and gravitational effects, caused by the ...
A conceptual design study of a hovering system controller for an Autonomous Underwater Vehicle
(Monterey, California. Naval Postgraduate School, 1987-12)
Hovering, Stationkeeping, Underwater Vehicles, Control Systems, Configurations, Control, Horsepower, Oceans, Position (Location), Redundancy, Scenarios, Theses, Thrusters, Transitions Hovering, Stationkeeping, Underwater ...
In-situ microscopic studies of deformation
(1981-03)
The design and construction of an experimental strain/heating stage for the Cambridge Stereoscope Scanning Electron Microscope is reported. The stage is of the parallel cross-head type driven by opposed power-screw pairs. ...
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Lieutenant Commander, United States Navy (60)
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Mechanical Engineering (60)