Theses and Dissertations
Underwater shock-induced responses of submerged cylindrical structures
(Monterey, California. Naval Postgraduate School, 1983-12)
The non-linear elasto-plastic responses of a submerged cylindrical shell to an underwater shock wave have been investigated. Using the EPSA (Elasto-Plastic Shell Analysis) code, the gross responses of homogeneous and ...
Optimization of three dimensional combined truss/frame structures
(Monterey, California. Naval Postgraduate School, 1982-10)
A finite element code is developed for analysis and design of three-dimensional truss and frame structures. Structures are designed for minimum weight subject to constraints on: member stresses, Euler buckling, shell ...
Effect of fluid mesh truncation on the response of a Floating Shock Platform (FSP) subjected to an Underwater Explosion (UNDEX)
(Monterey, California. Naval Postgraduate School, 1999-09)
Shock trials are required for the lead ship of each new construction shock hardened ship class. The Navy's Floating Shock Platform (FSP) is used in the acceptance of mission essential items for installation aboard shock ...
Computer simulation of a rotational single-element flexible spacecraft boom.
(1987-03)
The requirement to develop a space based remote ocean
sensing platform exists within the Department of the Navy.
This project models a satellite subsystem with structural
flexibility utilizing the Equivalent Rigid Link ...
Effect of boundary conditions on the damping characteristics of a randomly excited cast nickel-aluminum bronze specimen at low stress levels.
(Monterey, California. Naval Postgraduate School, 1984-03)
This research examines how various specimen support
arrangements affect a material's damping characteristics.
The 74 lb. sample studied is cast nickel-aluminum bronze and
measures 19.8 x 13.65 x 1 inches. Using previously ...
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 ...
Effect of surface coating on cylinders subjected to underwater shock
(Monterey, California. Naval Postgraduate School, 1992-09)
The response of a composite cylinder (metallic cylinder coated with a rubber material) subjected to an underwater explosion was analyzed numerically. Qualitative differences between coated and uncoated cylinders were ...
Vibration response of constrained viscoelastically damped plates: analyses and experiments.
(1987-12)
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 ...
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 ...
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Shin, Young S. (54)
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Mechanical Engineering (54)