Theses and Dissertations
Now showing items 1-10 of 523
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 ...
Experimental study on the effect of misfit and mismatch of ship plating welds
(Monterey, California ; Naval Postgraduate School, 2002-06)
Misfits and mismatches in the welding of ship hull plating may affect survivability after explosions, accidents, or other extreme external forces. Experiments, Slip Line Theory (SLT), and Finite Element Analysis (FEA) help ...
An approach for studying the creep/sliding behavior of planar metal-silicon interface
(Monterey, California. Naval Postgraduate School, 1999-12-01)
There has been considerable recent interest in interfacial sliding during creep of multi-phase materials. The effect of interfacial creep is crucial for the deformation of metal-matrix composites and thin film systems, ...
Fretting fatigue analysis and palliatives
(Monterey, California. Naval Postgraduate School, 1999-06)
The deleterious effects of fretting on the fatigue properties of a material have been known since the work of Warlow-Davies in 1941. However, a widely accepted fretting fatigue life prediction method still does not exist ...
Transient response analysis of the 72 Inch TAC-4 ruggedized shipboard rack subjected to an underwater explosion event
(Monterey, California. Naval Postgraduate School, 1998-06)
The finite element modeling and subsequent transient analysis of the 72 Inch TAC-4 Rugged Rack computer system (configurations 0001AA and 0003AA only), currently employed in U.S. Navy shipboard applications, has been ...
AUV fault detection using model based observer residuals
(Monterey, California. Naval Postgraduate School, 1998-06); NPS-ME-98-004
In order for the Navy's next generation Unmanned Undersea Vehicles to be more robust to software/hardware faults, on-line failure detection and resolution is needed. Typically, fault detection methods include limits and ...
A surveillance strategy for a four year operating cycle in commercial pressurized water reactors
If the U. S. nuclear industry hopes to remain competitive and grow into the next century, it must be willing to expand the goal of each plant from safe performance, to safe and economic performance, and apply this type of ...
Six degree of freedom vehicle controller design for the operation of an unmanned underwater vehicle in a shallow water environment.
(Monterey, California. Naval Postgraduate School, 1994-09)
Closed loop control of an unmanned underwater vehicle (UUV) in the dynamically difficult environment of shallow water requires explicit consideration of the highly coupled nature of the governing non-linear equations of ...
An analysis of the Navy's Science and Technology (S&T) Budget
(Monterey, California. Naval Postgraduate School, 1994-06)
This thesis examines the importance of the Navy's Science and Technology (S&T) budget. The relevance and value of the budget are addressed. The composition and size of the Navy's S&T budget between 1984 and 1994 are evaluated ...
Development of naval diesel engine duty cycles for air exhaust emission environmental impact analysis.
(Monterey, California. Naval Postgraduate School, 1994-05)
A strategy for testing naval diesel engines for exhaust emissions was developed. A survey of existing international and national standard diesel engine duty cycles was conducted. All were found to be inadequate for testing and ...
Branch Of Service
Professional Degree (523)