Ship Shock Trial Simulation of USS Winston S. Churchill (DDG-81) PDF Download
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Author: David T. Hart
Publisher:
ISBN: 9781423503651
Category :
Languages : en
Pages : 111
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Book Description
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 11-A arleigh Burkes, it was chosen to undergo ship shock trials for its class. These trials are necessary in order to evaluate the vulnerability and survivability of the hull and the mission essential equipment in a combat shock environment. However, shock trials are very expensive, require extensive planning and coordination, and represent a potential hazard to the marine environment and its mammals. Computer modeling and simulation are showing themselves to be a plausible alternative in investigating the dynamic response of a ship under these shock trials conditions. This thesis investigates the use of computer ship and fluid modeling, coupled with underwater explosion simulation and compares it to actual shock trial data from the USS Winston S. Churchill. Of particular concern in this study is the amount of fluid that must be modeled to accurately capture the structural response of a frill ship finite element model. Four fluid meshes were constructed and used to study the ship's response to an underwater explosion. Each simulation data was analyzed to determine which mesh best represented the actual ship shock trial results.
Author: David T. Hart
Publisher:
ISBN: 9781423503651
Category :
Languages : en
Pages : 111
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Book Description
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 11-A arleigh Burkes, it was chosen to undergo ship shock trials for its class. These trials are necessary in order to evaluate the vulnerability and survivability of the hull and the mission essential equipment in a combat shock environment. However, shock trials are very expensive, require extensive planning and coordination, and represent a potential hazard to the marine environment and its mammals. Computer modeling and simulation are showing themselves to be a plausible alternative in investigating the dynamic response of a ship under these shock trials conditions. This thesis investigates the use of computer ship and fluid modeling, coupled with underwater explosion simulation and compares it to actual shock trial data from the USS Winston S. Churchill. Of particular concern in this study is the amount of fluid that must be modeled to accurately capture the structural response of a frill ship finite element model. Four fluid meshes were constructed and used to study the ship's response to an underwater explosion. Each simulation data was analyzed to determine which mesh best represented the actual ship shock trial results.
Author: Nathan A. Schneider
Publisher:
ISBN: 9781423513148
Category :
Languages : en
Pages : 187
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Book Description
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 been required to conduct shock trial tests on the lead ship of the class in order to test the survivability of mission essential equipment in a severe shock environment. While these tests are extremely important in determining the vulnerabilities of a surface ship they require an extensive amount of preparation manhours, and money. Furthermore, these tests present an obvious danger to the crew on board, the ship itself, and any marine life in the vicinity. Creating a virtual shock environment by use of a computer to model the ship structure and the surrounding fluid presents a valuable design tool and an attractive alternative to these tests. The research summarized in this report investigated the accuracy of shock simulation using the shock trials conducted on USS WINSTON S. CHURCHILL (DDG 81) in 2001. All three explosions DDG 81 was subjected to are simulated and the resulting predictions compared with actual shock trial data. The effects of fluid volume size, mesh density, mesh quality, and shot location are investigated.
Author:
Publisher:
ISBN:
Category : Mines (Military explosives)
Languages : en
Pages : 496
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Book Description
Author:
Publisher:
ISBN:
Category : Guided missile ships
Languages : en
Pages : 544
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Book Description
Author: Sung W. Lee
Publisher: Springer Nature
ISBN: 3030310655
Category : Technology & Engineering
Languages : en
Pages : 673
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Book Description
This book describes recent research findings on response and integrity of thick section composite and sandwich structures. In particular, it deals with these structures for marine applications under static and dynamic loads such as shock and slamming loads in severe sea environment including sea water, temperature extremes, hydrostatic pressure and Arctic conditions. Three-dimensional constitutive equations and failure criteria for structural response and integrity are considered. The book serves as an excellent repository of major advances in research on response and integrity of composite and sandwich structures made through research grants sponsored by the U.S. Office of Naval Research in the past decade. Collects major advances in response and integrity research; Emphasizes phenomena within severe environments; Illustrates underwater fluid-structure interactions, shock/blast loads, and slamming loads.
Author:
Publisher:
ISBN:
Category : Marine terminals
Languages : en
Pages : 504
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Book Description
Author: Department Of the Navy
Publisher: Independently Published
ISBN: 9781090335104
Category : History
Languages : en
Pages : 204
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Book Description
The U.S. Navy is ready to execute the Nation's tasks at sea, from prompt and sustained combat operations to every-day forward-presence, diplomacy and relief efforts. We operate worldwide, in space, cyberspace, and throughout the maritime domain. The United States is and will remain a maritime nation, and our security and prosperity are inextricably linked to our ability to operate naval forces on, under and above the seas and oceans of the world. To that end, the Navy executes programs that enable our Sailors, Marines, civilians, and forces to meet existing and emerging challenges at sea with confidence. Six priorities guide today's planning, programming, and budgeting decisions: (1) maintain a credible, modern, and survivable sea based strategic deterrent; (2) sustain forward presence, distributed globally in places that matter; (3) develop the capability and capacity to win decisively; (4) focus on critical afloat and ashore readiness to ensure the Navy is adequately funded and ready; (5) enhance the Navy's asymmetric capabilities in the physical domains as well as in cyberspace and the electromagnetic spectrum; and (6) sustain a relevant industrial base, particularly in shipbuilding.
Author: C. A. Bartholomew
Publisher: Government Printing Office
ISBN: 9780945274605
Category : History
Languages : en
Pages : 644
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Book Description
By the start of the 20th century, the U.S. Navy had developed a fledgling salvage capability. Today, under the aegis of the Supervisor of Salvage, the Navy routinely handles assignments around the world, guarding U.S. naval and maritime interests and responding to requests for assistance from our allies. Mud, Muscle, and Miracles takes its reader on a journey through the evolution of salvage--from the construction of a cofferdam to reveal battleship Maineat the bottom of Havana harbor in 1911 to the use of side-scan sonar and remotely operated vehicles to recover aircraft debris and complete vessels from the depths. The story is one of masterful seamanship, incomparable engineering, and absolute ingenuity and courage. It is also the history of one of our nation's longest-lasting public-private partnerships--that of the commercial salvage industry and the U.S. Navy. The second edition updates U.S. Navy salvage history through the beginning of the 21st century and chronicles 18 additional, precedent-setting marine salvage and deep-ocean recovery operations.
Author: Peter A. Hancock
Publisher: CRC Press
ISBN: 1420072846
Category : Computers
Languages : en
Pages : 470
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Book Description
Discussing issues and concepts relating to human factors in simulation, this book covers theory and application in fields such as space, ships, submarines, naval aviation, and commercial aviation. The authors develop and expand on concepts in simulator usage particularly specific characteristics and issues of simulation and their effect on the validity and functionality of simulators as a training device. The chapters contain in depth discussions of these particular characteristics and issues. They also incorporate theories pertaining to the motivational aspects of training, simulation of social events, and PC based simulation.
Author: Andrew Scobell
Publisher: Lulu.com
ISBN: 9781365073724
Category : Reference
Languages : en
Pages : 384
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Book Description
How will China use its increasing military capabilities in the future? China faces a complicated security environment with a wide range of internal and external threats. Rapidly expanding international interests are creating demands for the People's Liberation Army (PLA) to conduct new missions ranging from protecting Chinese shipping from Somali pirates to evacuating citizens from Libya. The most recent Chinese defense white paper states that the armed forces must "make serious preparations to cope with the most complex and difficult scenarios . . . so as to ensure proper responses . . . at any time and under any circumstances." Based on a conference co-sponsored by Taiwan's Council of Advanced Policy Studies, RAND, Carnegie Endowment for International Peace, and National Defense University, The People's Liberation Army and Contingency Planning in China brings together leading experts from the United States and Taiwan to examine how the PLA prepares for a range of domestic, border, and maritime...
