Theses and Dissertations
Now showing items 1-10 of 61
Design of an AUV recharging system
(Cambridge, Massaachusetts; Massachusetts Institute of Technology, 2004-06)
The utility of present Autonomous Underwater Vehicles (AUVs) is limited by their on-board energy storage capability. Research indicates that rechargeable batteries will continue to be the AUV power source of choice for at ...
Acoustical emission source location in thin rods through wavelet detail crosscorrelation
(Monterey, California. Naval Postgraduate School, 1998-03-01)
Flaws in structural elements release strain energy in the form of stress waves that can be detected through acoustical emission techniques. The transient nature of a stress wave is analytically inconsistent to Fourier ...
Anode sheath contributions in plasma thrusters
(Monterey, California. Naval Postgraduate School, 1994-03)
Contributions of the anode to Magnetoplasmadynamic (MPD) thruster performance are considered. High energy losses at this electrode, surface erosion, and sheath/ionization effects must be controlled in designs of practical ...
Mine avoidance and localization for underwater vehicles using continuous curvature path generation and non-linear tracking control
(Monterey, California. Naval Postgraduate School, 1993-09)
Many underwater vehicles have been designed to follow a straight path using linear approximations about that path. Tracking a dynamic path of arbitrary but continuous curvature may often be desired. This will require a ...
Design, fabrication and test of a vertical attitude takeoff and landing unmanned air vehicle.
(Monterey, California. Naval Postgraduate School, 1993-06)
Future fleet needs for real-time intelligence require an unmanned platform capable of operations from small surface combatants without the need for extensive support personnel or equipment and without causing disruption ...
Theoretical study of laminar film condensation on horizontal elliptical tubes under conditions of free and forced convection
(Monterey, California: Naval Postgraduate School, 1993-03)
Analytical studies have been made of laminar film condensation on a horizontal elliptical cylinder in a pure saturated vapor under conditions of free and forced convection. Estimation of interfacial shear stress was made ...
Experimental study of the effect of helical grooves on an infinite cylinder
(Monterey, California. Naval Postgraduate School, 1992-12)
A series of low-speed wind-tunnel investigation were conducted to determine the aerodynamic behavior of a grooved cylinder representing a long trailing wire antenna towed from an orbiting airplane. The large angle-of-attack ...
Design and control of a space based two link manipulator with Lyapunov based control laws
(Monterey, California. Naval Postgraduate School, 1992-09)
The Flexible Spacecraft Simulator (FSS) at the Naval Postgraduate School was modified by replacing the flexible appendage with a two link robotic manipulator. This experimental setup was designed to simulate motion of a ...
Implementation of a personal computer based parameter estimation program.
(Monterey, California. Naval Postgraduate School, 1992-03)
Aircraft parameter estimation is the process of extracting numerical values for aerodynamic stability and control derivatives from flight -test time history data. This process can be used as a verification or validation ...
The dynamic response of cylindrical shells subjected to side-on underwater explosions
(Monterey, California: Naval Postgraduate School, 1992-03)
Two studies were performed to enhance the understanding of phenomena occurring in shell structures subjected to side-on underwater explosions. In the first, a numerical analysis was performed to investigate the non-linear ...
Branch Of Service
Lieutenant Commander, United States Navy (61)
Professional Degree (61)