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1	Parametric studies of DDG-81 ship shock trial simulations Didoszak, Jarema M. 03 1900 (has links) Approved for public release, distribution is unlimited / Evaluations, otherwise known as ship shock trials, have been conducted in order to determine the seaworthiness of each new class of ship commissioned in the U.S. Fleet. While beneficial in determining the overall survivability of a ship and its mission essential equipment in a severe shock environment, these Navy-mandated tests pose serious danger to the crew, ship and environment. As an alternative to these labor intensive, costly and time consuming at-sea tests, the recent advances in computer processing power have made it possible to employ finite element methods involving complex geometries in the modeling and simulation of shock response for the ship and surrounding fluid. This thesis examines the accuracy of shock simulation predictions as compared to the ship shock trials conducted on USS WINSTON S. CHURCHILL (DDG-81). An investigation of the effects of sensor location, damping and shot geometry is presented as validation of the Naval Postgraduate School modeling and simulation methodology. / Lieutenant, United States Navy Underwater explosions Computer simulation Mechanical engineering Astronautics Underwater explosion UNDEX Modeling and simulation Shock and vibration Ship shock Shock response Underwater shock analysis Dynamic shock simulation Computer simulation USS Winston S. Churchill DDG-81

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Parametric studies of DDG-81 ship shock trial simulations