Author : Rene Eduardo Quezada Ojeda
Publisher :
Page : 312 pages
File Size : 10,33 MB
Release : 1999
Category :
ISBN :
Author : Michael Eric Taylor
Publisher :
Page : 184 pages
File Size : 43,89 MB
Release : 2000
Category :
ISBN :
Maneuvering characteristics of surface combatants in the United States Navy are often ignored during the design process. Key maneuvering parameters such as tactical diameter and turning rate are determined during sea trials after the ship enters service. In the "Navy After Next" the study of maneuvering of surface combatants will become increasingly more important in efforts to reduce the number of personnel required to operate the ship and thus reduce life cycle costs. This thesis attempts to address this issue. The thesis presents an Extended Kalman Filtering (EKF) algorithm to estimate the linear damping hydrodynamic coefficients for an Arleigh Burke Class Destroyer. Actual data is generated by conducting maneuvers (with a nonlinear model of the ship developed in a separate study) where nonlinear effects are small. The EKF then uses that data to estimate the hull stability coefficients (Y(v), N(c), Y(r), and N(r)) on-line in real time. The coefficient values determined by the EKF are then used in a simulation model and the results are compared to the actual trajectories. Despite the nonlinearities present in the actual data, the EKF provides coefficient values that reproduce trajectories with only 15% error. The linear coefficients are then used to develop simple controllers to automate maneuvering for the actual ship. The parameters determined by the EKF are used to derive a linear time invariant (LTI) model of the ship. This LTI model then serves as the basis for model-based compensator designs to automatically control ship maneuvers. The first controller is an autopilot to regulate the ship's heading and the second is a regulator that ensures the ship remains on its intended track. The performance of the compensators is then evaluated by simulating the performance of the LTI controllers on the nonlinear plant.
Author : John Gourley
Publisher : MMD-Squadron Signal
Page : 0 pages
File Size : 49,86 MB
Release : 2015
Category : Arleigh Burke Class (Warships)
ISBN : 9780897477642
New expanded edition. Currently the most capable and sophisticated destroyer class in the world, the US Navy's Arleigh Burke-class destroyers had their beginnings in the mid-1970s, the result of a Naval Sea Systems Command (NAVSEA) research project. In the years following the Vietnam War, cost and size constraints were dominant factors motivating the design process. The new ship had to be effective as an anti-submarine escort for the carrier battle groups, but also able to engage and neutralize airborne threats. The new ship was also intended to replace older ships of several classes due for replacement. Chapters include: The need for Arleigh Burke, Flights of Ships, Ships of Flight, DDG-51 Class Operational Notes, Overhaul and Refit Periods, Mk 41 Vertical Launch System (VLS), Operation Tomodaci and Odyssey Dawn, Shipboard Electronics, Aegis Fire Control Illuminator AS-3444, SLQ-32 ECM Antenna Array, Radars, Data-Links, and SRS-1 Combat DF.
Author : Michael Green
Publisher : Capstone
Page : 36 pages
File Size : 39,65 MB
Release : 2004-09
Category : Juvenile Nonfiction
ISBN : 9780736827225
Describes the Arleigh Burke destroyer, including its history, equipment, weapons, tactics, and future use with the U.S Navy. Includes photo diagram.
Author : John Gourley
Publisher :
Page : 51 pages
File Size : 24,79 MB
Release : 2007-01-01
Category : Destroyers (Warships)
ISBN : 9780897475440
Currently the most capable and sophisticated destroyer class in the world, Arleigh Burke-class had its beginnings in the mid-1970s, the result of a Naval Sea Systems Command (NAVSEA) research project. In the years following the Vietnam War, cost and size constraints were dominant factors motivating the design process. The new ship had to be effective as an antisubmarine escort for the carrier battle groups, but also able to engage and neutralize airborne threats. The new ship was also intended to replace older ships of several classes due for replacement. illustrated with line drawings and profiles.
Author : Jeremiah N. Haag
Publisher : Nova Science Pub Incorporated
Page : 129 pages
File Size : 21,54 MB
Release : 2013-01-01
Category : History
ISBN : 9781628082999
This book presents background information and potential oversight issues for Congress on the Navy's Arleigh Burke (DDG-51) and Zumwalt (DDG-1000) class destroyer programs. The Navy's proposed FY2013 budget requests funding for the procurement of two DDG-51s. The Navy for FY2013 is also requesting congressional approval to use a multi-year procurement (MYP) arrangement for the nine DDG-51s scheduled for procurement in FY2013-FY2017. Decisions that Congress makes concerning these programs could substantially affect Navy capabilities and funding requirements, and the U.S. shipbuilding industrial base.
Author : Keith S. Kulow
Publisher :
Page : 157 pages
File Size : 32,10 MB
Release : 2000-06-01
Category :
ISBN : 9781423535812
The goal of this thesis is to contribute further to the development of a design tool for the modeling of dynamic progressive flooding in ships. In an earlier thesis, LT Thomas Anderson, USN, modeled a generic, mathematically describe able hull form; in this thesis the work is extended by applying his methods and generating new ones in order to accurately model an actual ship hull form, (the Arleigh Burke (DDG-51)), in a progressive flooding scenario. A secondary goal is to create an organized process, complete with any necessary programs or software, which can be applied to any hull form in the future in order to create a progressive flooding model. These goals contribute to the ultimate goal of creating a viable design tool that will allow the Naval Architect to evaluate the potential of a prototype vessel to withstand damage in a progressive flooding scenario.
Author : Ronald O'Rourke
Publisher : Createspace Independent Publishing Platform
Page : 30 pages
File Size : 14,73 MB
Release : 2017-04-03
Category :
ISBN : 9781545110935
The Navy has been procuring Arleigh Burke (DDG-51) class Aegis destroyers since FY1985. The two DDG-51s requested for procurement in FY2017 are to be the 75th and 76th ships in the class. The 10 DDG-51s programmed for procurement in FY2013-FY2017 (in annual quantities of 3-1-2-2-2) are being procured under a multiyear-procurement (MYP) contract. One of the DDG-51s funded in FY2016 is to be the first of a new DDG-51 design variation called the Flight III design, which is to incorporate a new and more capable radar called the Air and Missile Defense Radar (AMDR). As part of its action on the Navy's FY2016 budget, Congress provided $1 billion in unrequested procurement funding to help pay for a DDG-51 that would be in addition to those being procured under the 10-ship MYP contract for FY2013-FY2017. The Navy, in its budget submission, notes this additional $1 billion in funding for the DDG-51 program, but does not show the additional DDG-51 in its shipbuilding plan. The $433 million in procurement funding that would be needed to complete the cost of this additional DDG-51 is, however, included as the second item on the Navy's FY2017 unfunded requirements list (i.e., the list of FY2017 programs that the Navy desires, but for which it did not have sufficient funding in FY2017). The Navy estimates the combined procurement cost of the two DDG-51s requested for procurement in FY2017 at $3,393.9 million. The ships have received a total of $182.6 million in prior-year advance procurement (AP) funding. The Navy's proposed FY2017 budget requests the remaining $3,211.3 million needed to complete the ships' estimated combined procurement cost. The Navy's proposed FY2017 budget also requests $16.0 million in so-called cost-to-complete procurement funding to cover cost growth on DDG-51s procured in FY2011. The Navy's proposed FY2017 budget also requests $271.8 million in procurement funding to complete construction of Zumwalt (DDG-1000) class destroyers procured in prior years, and $144.4 million in research and development funding for development work on the AMDR. Potential FY2017 issues for Congress concerning destroyer procurement include the following: whether to approve, reject, or modify the Navy's FY2017 procurement funding requests for the DDG-51 and DDG-1000 programs, and the Navy's FY2017 research and development funding request for the AMDR program; whether to provide some or all of the $433 million in procurement funding needed to complete the funding for the additional DDG-51 that was partially funded with $1 billion in FY2016; whether to provide the Navy with authority for entering into an MYP contract for DDG-51s to be procured in FY2018-FY2022; continued cost growth in the DDG-1000 program; cost, schedule, and technical risk in the Flight III DDG-51 program; issues raised in a January 2016 report from DOD's Director of Operational Test and Evaluation (DOT&E)-DOT&E's annual report for FY2015; and the lack of an announced Navy roadmap for accomplishing three things in the cruiser-destroyer force: restoring ship growth margins; introducing large numbers of ships with integrated electric drive systems or other technologies that could provide ample electrical power for supporting future electrically powered weapons; and introducing technologies for substantially reducing ship operating and support (O&S) costs.
Author : Department Of the Navy
Publisher : Independently Published
Page : 204 pages
File Size : 47,14 MB
Release : 2019-03-12
Category : History
ISBN : 9781090335104
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 : Congressional Service
Publisher : Createspace Independent Publishing Platform
Page : 42 pages
File Size : 11,52 MB
Release : 2018-07-18
Category :
ISBN : 9781723255861
The Navy is developing three new ship-based weapons that could improve the ability of Navy surface ships to defend themselves against missiles, unmanned aerial vehicles (UAVs), and surface craft: the Surface Navy Laser Weapon System (SNLWS), the electromagnetic railgun (EMRG), and the gun-launched guided projectile (GLGP), previously known as the hypervelocity projectile (HVP). The Navy refers to the initial (i.e., Increment 1) version of SNLWS as HELIOS, an acronym meaning high-energy laser with integrated optical dazzler and surveillance. EMRG could additionally provide the Navy with a new naval surface fire support (NSFS) weapon for attacking land targets in support of Marines or other friendly ground forces ashore. The Department of Defense is exploring the potential for using GLGP across multiple U.S. military services. Any one of these three new weapons, if successfully developed and deployed, might be regarded as a "game changer" for defending Navy surface ships against enemy missiles and UAVs. If two or three of them are successfully developed and deployed, the result might be considered not just a game changer, but a revolution. Rarely has the Navy had so many potential new types of surface-ship air-defense weapons simultaneously available for development and potential deployment. Although the Navy in recent years has made considerable progress in developing technologies for these new weapons, a number of significant development challenges remain. Overcoming these challenges will require additional development work, and ultimate success in overcoming them is not guaranteed. The issue for Congress is whether to approve, reject, or modify the Navy's funding requests and proposed acquisition strategies for these three potential new weapons. Potential oversight questions for Congress include the following: Using currently available air-defense weapons, how well could Navy surface ships defend themselves in a combat scenario against an adversary such as China that has or could have large numbers of missiles and UAVs? How would this situation change if Navy surface ships in coming years were equipped with SNLWS, EMRG, GLGP, or some combination of these systems? How significant are the remaining development challenges for SNLWS, EMRG, and GLGP? Are current schedules for developing SNLWS, EMRG, and GLGP appropriate in relation to remaining development challenges and projected improvements in enemy missiles and UAVs? When does the Navy anticipate issuing roadmaps detailing its plans for procuring and installing production versions of SNLWS, EMRG, and GLGP on specific Navy ships by specific dates? Will the kinds of surface ships that the Navy plans to procure in coming years have sufficient space, weight, electrical power, and cooling capability to take full advantage of SNLWS and EMRG? What changes, if any, would need to be made in Navy plans for procuring large surface combatants (i.e., destroyers and cruisers) or other Navy ships to take full advantage of SNLWS and EMRGs? Given the Navy's interest in HPV, how committed is the Navy to completing the development of EMRG and eventually deploying EMRGs on Navy ships? Are the funding line items for SNLWS, EMRG, and GLDP sufficiently visible for supporting congressional oversight?
