Experimental investigation into the dynamic response of two DOF tuned deck simulator for shock qualification of shipboard systems
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Authors
Flynn, Timothy V.
Subjects
NA
Advisors
Shin, Young S.
Date of Issue
1994-06
Date
June, 1994
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The explosive shock created by the underwater explosion of a mine or torpedo in close proximity to a surface ship can severely threaten the combat capability and survivability of the ship. MEL-S-901D specifics the shock test procedures and acceptance criteria for all shipboard systems that must resist high impact mechanical shock. While the U.S. Navy's Medium-weight Shock Machine with its standard equipment mounting fixture can subject a combat systems component to more severe shock excitations than experienced in actual ship shock trials, it cannot simulate the lower frequency excitations typically transmitted through a ship's superstructure during shock trials that expose equipment to catastrophic resonant vibration. This study is an experimental investigation into the dynamic response of the recently built Two Degree-of-Freedom (2DOF) tuned Deck Simulator (TDS) for the Medium-weight Shock Machine (MWSM) to evaluate its potential role in the pre-acceptance shock qualification of new shipboard combat systems equipment. Upon completion of final characterization testing, the 2DOF-TDS could be integrated into the medium-weight shock qualification procedures of MIL-S-901D. This improvement could significantly enhance the capacity of a warship to absorb damage and still maintain its mission integrity.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
NA
Identifiers
NPS Report Number
Sponsors
Funder
NA
Format
85 p.;28 cm.
Citation
Distribution Statement
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.