Parametric studies of DDG-81 ship shock trial simulations
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Authors
Didoszak, Jarema M.
Subjects
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
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
Advisors
Shin, Young S.
Date of Issue
2004-03
Date
March 2004
Publisher
Monterey, CA; Naval Postgraduate School
Language
Abstract
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.
Type
Thesis
Description
Series/Report No
Organization
Identifiers
NPS Report Number
Sponsors
Funding
Format
xvi, 148 p. : ill. (chiefly col.)
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.