Accession Number:

ADA282216

Title:

Experimental Investigation into the Dynamic Response of Two DOF Tuned Deck Simulator for Shock Qualification of Shipboard Systems

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

• Flynn, Timothy V., III

Report Date:

1994-06-01

Pagination or Media Count:

94.0

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. Navys 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 ships 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

Descriptors:

• *SHOCK(MECHANICS)
• *UNDERWATER EXPLOSIONS
• *NAVAL VESSELS(COMBATANT)
• TEST AND EVALUATION
• FREQUENCY
• SIMULATORS
• VIBRATION
• WARFARE
• SHIPS
• TORPEDOES
• THESES
• SHIP DECKS
• SHOCK TESTS
• STANDARDS
• SHIPBOARD
• RESONANCE
• SHOCK
• STRUCTURAL RESPONSE
• SURFACES
• EXPLOSION EFFECTS
• SUPERSTRUCTURES
• UNDERWATER MINES
• IMPACT
• DAMAGE
• SURVIVABILITY
• EXCITATION
• IMPACT TESTS
• DYNAMIC RESPONSE
• SHOCK WAVES

Subject Categories:

• Marine Engineering
• Explosions

Distribution Statement:

APPROVED FOR PUBLIC RELEASE