Theses and Dissertations
Now showing items 1-10 of 52
Vibration response of constrained viscoelastically damped plates: analyses and experiments.
The frequency response analysis of several constrained viscoelastically damped plates were performed with modifications to account for the frequency dependent properties of viscoelastic materials (loss factors and ...
A three dimensional non-singular modelling of rigid manipulators
There are several common approaches used to obtain the kinematic and dynamic equations which describe the motion of robot manipulators. However, a problem arises when these conventional body oriented robot arm kinematic ...
Single phase liquid immersion cooling of discrete heat sources in a vertical channel.
Natural convection liquid cooling of simulated electronic components was investigated. A single column of eight protruding components was constructed using foil heaters mounted on the back of stainless steel ...
A study of model based maneuvering controls for autonomous underwater vehicles
Autonomous Underwater Vehicles (AUV) are being considered by the U.S. Navy for a variety of missions. Requirements for autonomy reinforce the need for a robust maneuvering controller that can ensure accurate tracking of a ...
Development of a constituitive equation for HSLA-100 at cryogenic temperatures
HSLA-100 is a 100ksi nominal yield strength steel being developed by the Navy for Naval shipbuilding applications. To assist in ductile and brittle failure modelling of this low carbon steel, tensile tests were conducted ...
Heat transfer modeling of jet vane Thrust Vector Control (TVC) Systems
The research presented herein, analyzes two models of a jetvane Thrust Vector Control (TVC) System. Computational modeling was accomplished using the latest version of the PHOENICS computer code, designated PHOENICS-84. ...
Effect of friction and control parameters on the tracking accuracy of a target seeker
The tracking accuracy of a missile target seeker depends on many variables. For a target seeker using a gimbaled platform, an important variable is the friction induced by the preloaded bearings, and by the short wires ...
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 ...
Interaction of a vortex pair with a free surface.
The trailing vortices generated by the control planes of submarines give rise to surface signatures in the form of scars and striations. Two counter-rotating vortices were generated in a novel experimental system and their ...
Indirect measurement of local condensing heat-transfer coefficient around horizontal finned tubes
Heat-transfer measurements were made for condensation of steam on three finned tubes with rectangular-section fins. These tubes have a fin thickness and fin height of 1.0 mm and fin spacings of 0.5, 1.0 and 1.5 mm. Data ...
Branch Of Service
Mechanical Engineering (52)