Theses and Dissertations
Four quadrant dynamic model of the AUV II thruster
(Monterey, California. Naval Postgraduate School, 1993-09)
The dynamic behavior of the AUV II thruster was mathematically modeled by a four quadrant mapping of the propeller blade lift/drag coefficients as a function of fluid effective angle of attack. The model was validated with ...
FSR based force torque transducer design
(Monterey, California. Naval Postgraduate School, 1993-06)
This thesis report discusses the design, construction and calibration of two force-torque transducers for use in a force control override of a rate control system. Pre-loaded force sensing resistors were used in a computer ...
Interaction effects of a lower heated tube on pool boiling of R-124 from an upper horizontal tube
(Monterey, California. Naval Postgraduate School, 1993-12)
An investigation of the interaction effects of a lower heated tube on pool boiling of pure R-124 from an upper horizontal tube was conducted at a saturation temperature of 2.2 deg C. The test tubes used were: (1) smooth ...
Transportability analysis of the M119 Howitzer in the firing configuration
(Monterey, California. Naval Postgraduate School, 1993-09)
This study was undertaken to determine if the US Army's M119 Howitzer could be safely towed in the 'firing' position using the existing A-Frame brace to support the gun tube during movement. A computer model of the howitzer ...
An X-ray diffraction investigation of infinity-Al2O3 addition to yttria stabilized zirconia (YSZ) thermal barrier coatings subject to destabilizing vanadium pentoxide (V2O5) exposure
(Monterey, California. Naval Postgraduate School, 1993-09)
Since the mid 1970's the U.S. Navy has used Yttria-stabilized zirconia ( YSZ ) as thermal barrier coatings for hot stage gas turbine components. Use of low cost, high contaminant, fuels has led to shortened component life ...
Intermetallic growth at the interface between copper and bismuth-tin solder
(Monterey, California. Naval Postgraduate School, 1993-09)
Tin-bismuth alloys have been proposed as alternatives to lead containing solders for interconnection and packaging applications. Consequently, the interface between copper metallizations and bismuth-tin solders needs to ...
A structured programming approach for complex AUV mission control
(Monterey, California. Naval Postgraduate School, 1993-09)
Reconfigurability and reliability are two keys for the success of an AUV mission control software. The Strategic layer of our software architecture is the level where control of the mission is accomplished. Here, code may ...
The influence of wall conductivity on film condensation with integral fin tubes
(Monterey, California. Naval Postgraduate School, 1993-09)
Heat transfer performance of steam condensing on horizontal finned tubes made of copper, aluminum, copper nickel(90/10), and stainless steel(316) was studied using a condenser test rig at both vacuum and atmospheric ...
The quantitative microstructural characterization of multipass TIG ultra low carbon bainitic steel weldments and correlation with mechanical properties
(Monterey, California. Naval Postgraduate School, 1993-09)
The U.S. Navy has maintained a continuous research, development and certification program in ULCB steels as a possible replacement for the HY and HSLA steels currently being used in ship construction. The overall aim of ...
The study of GMA welds with different cover gas compositions on HSLA-100 steel
(Monterey, California. Naval Postgraduate School, 1993-09)
The purpose of this study was to investigate the effect of varying cover gas compositions on the microstructure and mechanical properties of single run gas-metal arc welds (GMAW) on HSLA-100 plate and seven different cover ...
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