Theses and Dissertations
Fluid-structure interaction effects resulting from hull appendage coupling
(Monterey California. Naval Postgraduate School, 2005-09)
In previous work conducted in the modeling and simulation of ships subjected to underwater explosions, there has been some debate over the influence that hull appendages have upon the dynamic response of a multi-degree-of-freedom ...
Prediction of surface ship response to severe underwater explosions using a virtual underwater shock environment
(Monterey, California. Naval Postgraduate School, 2003-06)
During World War II many surface combatants were damaged or severely crippled by close-proximity underwater explosions from ordnance that had actually missed their target. Since this time all new classes of combatants have ...
Ship shock trial simulation of USS Winston S. Churchill (DDG-81) surrounding fluid effect
(Monterey, California. Naval Postgraduate School, 2003-03)
The USS Winston S. Churchill (DDG-81) shock trial was conducted in May and June of 2001 off the coast of Naval Station Mayport, Florida. Because the USS Winston S. Churchill best represented the new line of Flight II-A ...
Damping in stiffener welded structures
(Monterey, California. Naval Postgraduate School, 2003-06)
Damping of welded structures is a subject of great interest and application for the navy as relates to ship shock survivability and acoustic transmission of ship noise. The purpose of this research is to study the effects ...
Experimental studies of noise/vibration damping for undersea warfare applications
(Monterey, California ; Naval Postgraduate School, 2002-06)
Maintaining silence underwater is an important issue with undersea warfare. One technique to reduce noise radiation is to use a passive noise/vibration material. The objective of this research was to investigate the vibration ...
Evaluation and analysis of DDG-81 simulated athwartship shock response
(Monterey, California. Naval Postgraduate School, 2004-06)
In 2001 the USS WINSTON CHURCHILL (DDG-81) was subjected to three underwater explosions as part of a ship shock trial. Using the actual trial data from experiment and three-dimensional dynamic models of the ship and ...
Surface ship shock modeling and simulation: extended investigation
(Monterey, California. Naval Postgraduate School, 2000-12-01)
DTIC Descriptor(s): Vibration, Naval Vessels, Ocean Surface, Shock Waves, Shock(Mechanics), Underwater Explosions, Shock Tests, Ship Structural Components, Test And Evaluation, Mathematical Models, Simulation, Decision ...
Applications of Arbitrary Lagrangian-Eulerian (ALE) analysis approach to underwater and air explosion problems
(Monterey, California. Naval Postgraduate School, 2000-09)
A series of underwater and air explosion investigations was conducted using the Arbitrary Lagrangian-Eulerian (ALE) numerical technique. The investigation primarily examined the explosive-fluid, fluid-structure, and fluid-air ...
Dynamic response of a catamaran-hull ship subjected to underwater explosions
(Monterey, California. Naval Postgraduate School, 2006-12)
E) requirements for the lead ship of each new construction shock-hardened ship class. While those trials are necessary in order to evaluate the vunerability and survivability of the ship, they are very expensive, require ...
Coupled Lagrangian and Eulerian approach to detonation and fragmentation problems
(2001-09)
Many obstacles such as minefields, barbwire entanglements, tank ditches and other fortifications are used to paralyze the forward momentum of mechanized armed forces. To combat this the Grizzly tracked vehicle was developed ...
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Shin, Young S. (12)
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Mechanical Engineering (12)