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Naval Engineers Journal 1967年第5期79卷 779-783页

作者： BERG, DAVID J. JONES, WALTER S. MARRON, HUGH W. David Berg a native of Michigan received his Bachelor's Degree in Mechanical Engineering from the Michigan Technological University in 1951 after which he began his career with the Bureau of Ships in the Machinery Design Branch on noise shock and vibration problems. He was project engineer for the axial flow pumpjet development on USS Witek (DD848) and USS Glover (AGDE1) and received his Master of Engineering Degree in Naval Architecture in 1964 from the University of California Berkeley. Mr. Berg is currently acting head of the Ship Performance and Trials Section of the Propulsion Systems Analysis Branch in the Naval Ship Engineering Center. He received the Meritorious Civilian Service Award in 1962 for contributions to the design of the USS Thresher (SSN593) and was awarded the Superior Performance Award for Outstanding Performance in 1966. Hugh Marron a native of Pennsylvania received his Bachelor of Science Degree in Civil Engineering from the Pennsylvania State University in 1939. Upon graduation he was employed for one year with the Pennsylvania Department of Highways as a construction engineer. In July 1940 he became a Marine Engineer at the Philadelphia Naval Shipyard where after a period of apprenticeship and special training in this new field he was assigned to the Machinery Scientific Group of the Design Division. Then in October 1945 he was transferred to the Design Division of the Bureau of Ships. Mr. Marron is now a Project Coordinator in the Propulsion Power and Auxiliary Systems Division of the Naval Ship Engineering Center. Walter S. Jones a native of Virginia graduated from the George Washington University with a BME in June 1958. From July of that year through June 1965 he served with the Machinery Design Branch of the Bureau of Ships where he was Project Engineer for the Hydroneu-matic Ram Jet and Water jet Propulsion Systems. Mr. Jones is currently the Machinery Coordinator for the Computer Aided Ship Design Program in the Naval Ship Engineering Center.

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SHIP ENERGY-CONSERVATION ASSIST TEAM (SECAT)

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NAVAL ENGINEERS JOURNAL 1984年第2期96卷 47-58页

作者： DANGEL, R BRICE, AE The Authors A. Edward Brice was born and educated in Scotland where he graduated from the James Watt Memorial College and Paisley Technical College. His earliest marine engineering experience was obtained at Scotts's Shipbuilding and Engineering Company Limited from 1952 to 1959 where he was involved in the production and design of steam and diesel machinery plants for both Naval and commercial ships. During a five year stay in Canada Mr. Brice gained diversified experience in industries other than marine such as petrochemical plants and steel mills. He moved to the U.S. in 1964 where he was the design supervisor in charge of marine engineering at NASSCO covering new construction for American President Lines AFS type ships for the U.S. Navy Project Mohole Car Ferries for the State of Washington and 17 LST's for the U.S. Navy. During the contract definition phase of the DD-963 Mr. Brice authored several portions of the technical proposal while employed by Litton industries. He was also responsible for the system and detail design including the technical management of sub-contracts for the steam propulsion plant for the LHA 1 Class ships. Mr. Brice has been active in the Washington area for the last ten years performing marine engineering projects for the U.S. Navy. His principal interest since 1974 has been in shipboard energy conservation. He assisted in the development of the NavySTMSYS program and later in the operational verification aboard FF-1074. Mr. Brice has conducted four SECA T visits aboard ships with 1200 PSI steam plants and has recently completed an at-sea visit aboard on AOR with a 600 PSI steam plant. Richard Dangel was bom in New York City. He received his Bachelor's degree from the Sloan School of Industrial Management of the Massachusetts Institute of Technology in 1955. He has also completed graduate work for a Masters in Engineering Administration at George Washington University. Since graduation he has spent 11 years in private industry with companies in the DOD engineering research

The Ship Energy Conservation Assist Team (SECAT) program was initiated in Fiscal Year (FY) 82 by the Naval Sea systems Command (NAVSEA) to demonstrate and introduce individual Ship Commands to known energy conserving techniques without adding equipment complexity or additional maintenance burden. The principal objective is to provide each ship with an energy consumption, coupled with recommended energy conservation strategies. The technique involves both in-port and underway monitoring and introduction of energy efficient machinery plant alignments, fuel consumption curve generation, and most efficient speed curves. The program has completed visits on six combatants and enjoys the support of both the Commander, Naval Surface Forces, U.S. Atlantic Fleet (COMNAVSURFLANT) and the Commander-in-Chief, U.S. Atlantic Fleet (CINCLANT). Plans are to perform SECAT on additional DDG 2 and FF 1052/1078 Class ships and initiate SECAT on additional ship types in FY 83.

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THE STRUCTURAL SYNTHESIS DESIGN program - ITS IMPACT ON THE FLEET

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NAVAL ENGINEERS JOURNAL 1983年第3期95卷 87-99页

作者： WIERNICKI, CJ GOODING, TG NAPPI, NS Mr. Christopher J. Wiernicki:graduated from Vanderbilt University in 1980 with a B.E. degree in Structural Engineering. Upon graduation he began his professional career at the David Taylor Naval Ship Research and Development Center. As a structural engineer in the Surface Ship Structures Division Mr. Wiernicki was responsible for developing improved methods and procedures for designing and evaluating structural systems for surf ace combatants. Specific projects included design for producibility development and evaluation of automated ship structural design methods and participation in the structural design of the CG 49 Cruiser and the current DDG 51 Destroyer. In 1982 Mr. Wiernicki received his M.S. degree in Ocean Engineering from George Washington University. Mr. Wiernicki is a recipient of the SNAME 1982-82 Graduate Scholarship and is currently doing post graduate work in Naval Architecture at Massachusetts Institute of Technology he is a member of ASNE SNAME ASCE and Chi Epsilon. Mr. Thomas G. Gooding:graduated in 1975 from the University of Michigan with B.S. degrees in Oceanography and Naval Architecture. After graduation he began his professional career at the Naval Ship Engineering Center (NA VSEC) as a structural engineer. From 1975 till 1978 Mr. Gooding worked in the area of ship dry docking and was the structural task leader on the complex overhaul ofUSS Long Beach (CGN-9). Mr. Gooding returned to the University of Michigan to receive a M.S. in Naval Architecture in 1979. Currently Mr. Gooding is the structural task leader on the DDGX/DDG 51 program at the Naval Sea Systems Command (NAVSEA). Mr. Gooding is a member of SNAME and the Naval Institute. Mr. Natale S. Nappi:graduated from City College of New York in 1954 with a Bachelor of Civil Engineering and received his M.S. in Civil Engineering from Polytechnic Institute of Brooklyn in 1959. He began his professional career in 1964 at the New York Naval Shipyard as a Naval Architect (Structure) performing detail structural design and fabrication s

The structural design of a ship's section is a complicated, repetitive and time consuming task. With the advent of new technology, high speed computers have enabled the ship designer to accomplish in a matter of seconds what would formerly take days to accomplish by hand. The Structural Synthesis Design program (SSDP) is a N avy developed computer-aided design tool which is used to design (or to analyze) the longitudinal scantlings for a variety of ship cross sections, consisting of any practical combinations of decks, platforms, bulkheads and materials, i.e., various steel and aluminum alloys. The final hull section design will have the lowest practical weight for the chosen geometric configuration, structural arrangements, and imposed loadings. The scantling developed by the program will satisfy all U.S. N avy ship structural design criteria. An explanation of the objective and design elements of N avy ship structures is included. The rationale behind the SSDP design philosophy is developed along with the significant program capabilities. In an attempt to highlight the influence of automated design procedures on the current naval ship design process, the effect of the SSDP on the DDG 51 destroyer structural development is addressed.

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ADVANCED AVIONICS ARCHITECTURE - THE NAVAIR STUDY

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NAVAL ENGINEERS JOURNAL 1994年第6期106卷 31-40页

作者： KATZ, RS JAHNKE, L JEWETT, CE Cdr. Larry Jahnke USN:is presently Head of the Architecture Branch of the Avionics Engineering division AIR-546 of the Naval Air Systems Command. Among his current responsibilities is to lead implementation activities of the NAVAIR Advanced Avionics Architecture study described in this paper. Cdr. Jahnke graduated from the University of Minnesota with a B.S. degree in aeronautical engineering and was commissioned in 1974. After flight training as a Naval flight officer he was assigned to Naval Air Station Barbers Point Hawaii where he served as Tactical Coordinator for P-3B aircraft. He was assigned to the Communications Directorate of the Joint Staff in 1990 where he participated in support of Desert Shield/Desert Storm and was part of the original cadre of officers responsible for the “C41 for the Warrior” concept. Cdr. Jahnke also has a Master of Science degree from the University of Southern California and is a 1990 graduate of the Industrial College of the Armed Forces. Cdr. Charles E. Jewett USN:is currently the Common Avionics Requirements Officer for Naval Aircraft Programs. He has served the Navy as an Aeronautical Engineering Duty Officer since 1982 with previous defense acquisition assignments as the Avionics Architecture and Engineering Branch Head Fighter/Attack Avionics systems Engineering Branch Head and A-12 Avionics Officer and A-6F Deputy Program Manager and the A-6 Avionics Officer. Cdr. Jewett entered the Navy as an Aviation Officer Candidate in 1971 receiving his commission and earning his wings as a Naval Flight Officer the same year. After graduating from the U.S. Naval Test Pilot School in 1976 he was assigned to the Strike Aircraft Test Directorate of the Naval Air Test Center where he participated in various electronic warfare electro-optics and software update evaluations for A-6 EA-6B and OV-10 aircraft. In Cdr. Jewett's previous assignment at NAVAIRSYSCOM he led a major Avionics Architecture Study (the subject of this paper) that surveyed cutting-edge avionics technol

To establish a planning basis for future avionics systems, the Naval Air systems Command (NAVAIR) conducted an avionics architecture investigation during 1992-1993, culminating in a final report published in August 1993. In the course of the study, U.S. Industry provided significant information to a NAVAIR avionics database for both technologies and systems integration methods. From the study emerged an implementation strategy to allow NAVAIR to develop effective avionics systems in the future that use commercial products and standards where applicable but also allow the ready use of new and emerging technologies. Recommended strategies concentrate on the development process, especially the use of sound systems engineering techniques and the maximum practical use of commercial standards and products. This paper reviews the methodology employed during the NAVAIR investigation, and presents the key findings and resulting implementation strategies. The paper concludes with a brief summary of current implementation plans at NAVAIR.

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NAVAL SHIP DESIGN - EVOLUTION OR REVOLUTION

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NAVAL ENGINEERS JOURNAL 1988年第3期100卷 40-52页

作者： TIBBITTS, BF KEANE, RG RIGGINS, RJ Captain Barry Tibbitts USN: was graduated from the U.S. Naval Academy in 1956 and subsequently served as a gunnery division officer in an attack aircraft carrier and as gunnery officer operations officer and chief engineer in two diesel submarines. He attended MIT from 1962–1965 earning a master of science in mechanical engineering and a naval engineers degree. Early assignments as an engineering duty officer included SRF Yokosuka CINCPACFLT staff and SupShip Pascagoula. From 1976 to 1987 he served in a variety of senior ship design assignments: CVV ship design manager director NAVSEC Hull and Ship Design Divisions director NavSea Ship Design Management and Integration Office commander David Taylor Naval Ship R&D Center and director NavSea Ship Design Group. Recently retired but recalled to active duty he is the professor of naval construction and engineering at MIT. He has received seven personal decorations including two Legion of Merit awards. Robert G. Keane Jr.:is currently the deputy director of the NavSea Ship Design Group. He has been employed by NavSea and its predecessor organizations for over twenty years. He is a graduate of The Johns Hopkins University from which he received his B.E.S. degree in mechanical engineering in 1962. He received his M.E. degree in mechanical engineering in 1967 from Stevens Institute of Technology and in 1970 his M.S.E. degree in naval architecture and marine engineering from the University of Michigan. Mr. Keane held increasingly responsible design positions involving ship arrangements hull equipment hull form and hydrodynamic performance before being selected in 1981 for the Senior Executive Service to be director of the Naval Architecture Subgroup. Following an assignment at the David Taylor Research Center as assistant for transition of ship engineering technology he served as director of the Ship Survivability Subgroup until assuming his current position in 1985. He is an active member of ASNE SNAME and ASE. Robert Riggins:received a B.S. in mechanical

Some fairly radical changes to the naval ship design process occurred during the 1970s. The decade of the 80s has also witnessed a steady stream of changes. One of the most significant was the establishment of the Ship Characteristics Improvement Board (SCIB) in the Office of the Chief of Naval Operations (OpNav), and the resulting influence on the dialog between the military requirements decision makers and the Navy's ship designers. Other changes have occurred for which the impacts are less clear. These include establishment of the chief engineer of the Navy (ChEng) position, creation of the Space and Naval Warfare systems Command (SpaWar) and OpNav's “Revolution at Sea” initiative. This paper will describe and discuss these and other changes, and comment on the resultant impact. The authors will attempt to present a global view of the total pattern of changes and try to discern if we are on a path of revolution, or merely normal evolution.

关键词： NAVAL VESSELS

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EMI - THE ENEMY WITHIN

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NAVAL ENGINEERS JOURNAL 1992年第2期104卷 69-80页

作者： BARON, NT CEBULSKI, DR Neil T. Baronis currently the team leader for the combat system topside design work for amphibious assault auxiliary mine warfare and Coast Guard ships. He sits on the IEEE SCC-28 Committee for personnel radiation hazards and is extensively involved in the EM engineering initiative at NavSea. Mr. Baron has lectured at the MIT Summer Professional Series on the subject of electromagnetic interference. While attending Marquette University he started his career with the Navy as a coop student supporting personnel radiation hazard assessments. After graduating with a BS in bio-medical engineering he took an electronics engineer position in the Systems Electromagnetic Division. Since then he has lectured on Navy training films and has developed several software packages which have pushed the state-of-the-art in EMI assessment. Mr. Baron has prepared several reports and professional papers. He has worked on several professional committees and in February of 1991 was awarded the “Young Engineer of the Year Award” which was presented by the D.C. Council of Engineering and Architectural Societies. Donald R. Cebulskiis currently the head of the Topside Design Division in the Naval Sea Systems Command Weapons and Combat System Directorate. He graduated from the University of Michigan with a bachelor's degree in 1963 and a master's degree in 1977 both in naval architecture and marine engineering. He started his career in 1964 at the Bureau of Ships and joined the Aircraft Carrier Section of the Arrangements Branch in Hull Design. During the past 25 years he has included almost every naval ship type in his ship arrangement experience and in October of 1988 he transferred to the Topside Design and Integration Branch in the System Electromagnetics Division Sea 06. Mr. Cebulski has written several papers on ship arrangements computer aided design and ship topside design. He prepared and presented lectures at the MIT Professional Series on ship topside design and has served on many ASNE committees. He is currently the

Electromagnetic interference (EMI) is one of the major contributors to mission degradation in our fleet today due to the increase in population and sensitivity of both topside and below deck electronic systems. Sensitive combat systems designed to counter intelligent and deceptive targets can be confused by the complex intra-ship EM environment. This can cause identification failure or losing "track" of a hostile or incoming missile or even engaging "friendly targets." Topside design and integration efforts have been used to reduce EMI, but this is not the total solution to the problem. A program of total ship and system EMI assessment and control must be implemented. This program must exploit electromagnetic compatibility (EMC) optimization in electronic circuit design and take advantage of and (in some cases) direct topside shapes and structures to control the propagation of desired and undesired EM energy. Positive and active control of EM design characteristics are absolutely required before optimum combat system effectiveness can be realized. This paper will describe the current topside design process, EMC improvements being made, and how the process is being integrated into, and is dependent upon, the ship design process. It will give examples of some of the major mission degrading EMI problems in the fleet today and how past problems were solved with existing EM analysis programs. It will also discuss the control of EM energy in new design through the use of techniques being developed such as ray tracing and ray casting. The paper projects where the challenges lie for future topside and EM engineering designers and describes how the equipment technology transfer process must be better integrated to meet the challenge of effective EMI control.

关键词： Signal Interference

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SWATH—THE VSTOL AIRCRAFT CARRIER FOR THE POST‐1990's

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Naval Engineers Journal 1977年第1期89卷 47-54页

作者： CHILDERS, RADM.K.C. GLOECKLER, FREDERICK M. STEVENS, ROBERT M. USN (RET.) RAdm. K.C. Childers USN (Ret.):graduated from the U.S. Naval Academy in 1939. and later completed his graduate studies at California Institute of Technology from which he received his MS and AE degrees. He was a fighter pilot in the aircraft carriers USS Ranger and USS Essex during World War II and an instructor at the Guided Missile School. Ft. Bliss Texas from 1947 until 1949 at which time he came to Washington. D.C. as an Assistant Division Director Ships Installation Division Bureau of Aeronautics. In addition his active duty career included assignments as Naval Air Systems Command Representative Atlantic Assistant Commander for Material Acquisition Naval Air Systems Command and Deputy Project Manager for the FlllB/Phoenix Program. Bureau of Naval Weapons. During the first five years of the Polaris Program he was responsible for all testing at the Atlantic Missile Range. He also served as Commander of the Naval Missile Center where he directed the test and evaluation of Airborne Weapon Systems and had been on an earlier assignment the Missile Test Officer. His military decorations include the Silver Star the Legion of Merit two Air Medals the Navy Commendation Medal and a Presidential Unit Citation. Currently he is employed as the Manager of the Analysis and Evaluation Department at CERBERONICS. Inc. Falls Church. Va. Mr. Frederick M. Gloeckler: currently a Consultant to CERBERONICS Inc. graduated from New York University from which he received his BS degree. He began his career with the Department of the Navy in 1938. and culminated it with his retirement in 1972 at which time he was engaged in VSTOL aircraft analysis and was the Director Advanced Systems Division Naval Air Systems Command (and its predecessor organizations). During this period he made major contributions to the Fleet Ballistic Missile Program the F-14 A-7 and S-3 Aircraft Programs and the Phoenix Condor and Harpoon Missile Programs. In 1951 Mr. Gloeckler organized‘ and directed the Systems Engineering Divis

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LESSONS LEARNED IN DEVELOPMENTAL TESTING IN FLEET

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NAVAL ENGINEERS JOURNAL 1978年第2期90卷 112-118页

作者： EDMONDO, PM MCCAMMON, PL Mr. Peter M. Edmondois presently Senior Human Factors Analyst for Sperry Systems Management. He was an Engineering Psychologist in the Shipboard Manning and Automation Program at the David W. Taylor Naval Ship Research and Development Center during the period addressed in the paper. His major responsibility was that of Operations Trials Director for the Integrated Bridge System. Previous employment has been with the Department of Psychology Naval Medical Research Institute (1963–1965) and as Senior Project Scientist in the Human Engineering and Systems Effectiveness Branch. DTNSRDC (1962–1972). Mr. Edmondo who has a Bachelor of Arts degree from Boston College Chestnut Hill Mass. is a member of the Human Factors Society and a member of ASNE since 1969. USN Cdr. Peter L. McCammon USNreceived his BS degree from the U. S. Naval Academy in 1962 his BSEE degree from the Naval Postgraduate School Monterey Calif and his MS degree from The Johns Hopkins University. He also graduated from the Naval War College with high distinction upon completion of the Naval Command Course and is currently serving as the Executive Officer USS Dale (CG—19). Prior to his present assignment he served as Engineer Officer USS Wallace L. Lind (DD—703) and USS Biddle (CG—34) and as Commanding Officer USS Graham County (AGP—1176) with additional duties as Commander Patrol Division 21 consisting of the Graham County and four patrol combatants (missiles). His significant shore assignments have included duty as an Instructor U. S. Naval Academy as Staff member U. S. Military Assistance Command Vietnam and as Project Officer Shipboard Manning and Automation Program DTNSRDC. Cdr. McCammon's military decorations include the Bronze Star Medal the Joint Service Commendation Medal and the Navy Commendation Medal.

Developmental tests have been conducted in the Fleet to demonstrate concepts for reducing man—hoars required to perform certain shipboard functions while maintaining or improving effectiveness. Experiences during the Preparation, Conduct, and Reporting of the tests are described including the CNO Pilot program for Reduced Bridge Manning; Integrated Bridge System (IBS); Facilities Maintenance (housekeeping); Wireless Communications During Damage Control Evolutions; and the Ship Contrblman. Areas discussed include system design and interface requirements; elements that go into tests designed for shipboard evaluation; approval requirements to conduct such tests; how to get Fleet Support in terms of personnel and assets; logistics and training requirements; and finally, what Fleet testing buys that other means do not.

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THE APPLICATION OF A PLANNING CONTRACT CONCEPT TO A COMPLEX NAVY SURFACE SHIP OVERHAUL

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NAVAL ENGINEERS JOURNAL 1983年第2期95卷 51-65页

作者： NODELL, WR SIAS, PM William R. Nodell USCG (Ret.):graduated from the U. S. COAST GUARD Academy in 1950 receiving a B.S. degree and earned his Master of Sciences and Naval Engineer degrees from the Massachusetts Institute of Technology in 1957. He has served in various line and engineering capacities on board COAST GUARD Cutters in Atlantic Pacific and Alaskan waters. He served in the production department of the COAST GUARD Yard in Curtis Bay Maryland and later was Chief of the Naval Engineering Branches of the 13th COAST GUARD District in Seattle Washington and the 3rd COAST GUARD District New York New York. After retirement he held a position as Manager of the Marine Engineering Department at Atlantic Research Corporation Costa Mesa California and joined Lockheed Shipbuilding and Construction Company in 1973. He was Project Engineer for the Polar Class Icebreakers the AS-41 and the LSD-41 in various stages. He has contributed technical papers to several professional societies. He is currently a member of the Society of Naval Architects and Marine Engineers the American Society of Naval Engineers where he served as a past chairman of the Puget Sound Chapter and the National Management Association where he served as a Past President of the local chapter. He is a senior systems engineer at Lockheed. Peter M. Sias:received his B.S. degree in Marine Engineering from Maine Maritime Academy in 1950. Subsequently he completed a NAVY sponsored program in Naval Architecture at the University of California and Department of Defense courses in program management and contract administration at the Air Force Institute of Technology. He served on active duty with the United States Navy during the Korean emergency with assignments as Engineering Officer for a minesweeper and collateral staff duty assignments with the Commander Mineforce U.S. Pacific Fleet for reserve ship activation. Upon release from active duty in 1952 he joined United States Steel Corporation as an Industrial Engineer. In 1955 he accepted a position in the Eng

Early in 1979, the Commander in Chief, United States Pacific Fleet requested that alternate procedures be explored for overhaul of the USS Sacramento (AOE-1). Of particular concern was the availability of the ship to accomplish alterations and repair planning prior to the start of the overhaul and the history of AOE Class ships not being completed in the private sector within the scheduled availability time. The planning type contract concept wherein pre-overhaul tests and inspections, preparation of drawings, procurement of long lead time material and detailed overhauling planning and scheduling would be accomplished by the successful Contractor was one approach requested for major consideration. In July 1979, the decision was made to proceed with the planning contract concept for overhaul of the USS Sacramento. The Request for Proposals (RFP's) were issued to industry in November 1979 with contract award to Lockheed Ship building and Construction Company (LSCC) on 4 February 1980. In September 1980, the overhaul for USS Sacramento was classified by the Navy as “complex”, confirming specific management action and attention to be given during the planning and overhaul phases. This technical paper describes the application of the planning contract concept to the planning and overhaul of USS Sacramento. Actual experiences including issue of the negotiated Request for Proposals (RFP's), performing pre-overhaul test and inspections (POT & I) procedures, accomplishing ship check and drawing preparation, and scheduling, including proper phasing of all elements and critical path analysis, will be reviewed in detail. Comparisons to conventional procedures will be made, along with concepts for modifying the methods employed to custom fit the characteristics of future overhauls. The closure will include a summary of “lessons learned” to date with specific recommendations for application of procedures to future overhauls.

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THE INTRODUCTION OF HEAT RECOVERABLE COUPLINGS TO SHIP REPAIR AND MAINTENANCE

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NAVAL ENGINEERS JOURNAL 1982年第6期94卷 63-71页

作者： LIBERATORE, DJ BASKERVILLE, JE LCdr. Donald J. Liberatore USN: began his career in the U.S. Navy in 1965. He has had many diverse assignments involving surface ships and submarines during the past seventeen years. During his tour at Naval Shipyard Portsmouth (N.H.) he was Assistant Design Superintendent and responsible for the introduction of Heat Recoverable Coupling technology into the shipyard. Presently he is assigned to the Naval Sea Systems Command (NAVSEA) in the Sonar Dome Office. Prior assignments within NAVSEA have been as Assistant Ship Systems Design Manager for the SSNX and FA-SSN preliminary designs in the Submarine Propulsion Analysis Branch in the Submarine Hydrodynamics Branch and in the Gear Coupling and Clutch Branch. He received his Bachelor of Engineering degree from Vanderbilt University in 1971 and in 1977 graduated from Massachusetts Institute of Technology with his M.S. degree in Naval Architecture and Marine Engineering and his Professional degree of Ocean Engineer. A member of ASNE since 1975 LCdr. Liberatore also is a member of IEEE SNAME the Naval Institute and Sigma Xi. Cdr. James E. Baskerville USN: is presently assigned to NAVSEA as the Ship Manager for the DDG 51 the Navy's next generation surface combatant. In a previous tour at Naval Shipyard Pearl Harbor he was the Navy's Program Manager for Heat Recoverable Coupling introduction in ship repair and maintenance. A graduate of the U.S. Naval Academy Class of 1969 he is a qualified Surface Warfare Officer and a designated Engineering Duty Officer (ED). He received his M.S. degree in Mechanical Engineering and his Professional degree of Ocean Engineer from Massachusetts Institute of Technology and also holds a patent right on an Electronic Control and Response System. His naval assignments have included tours in the USS Ramey (FFG-2) as Aide and Flag Lieutenant to the Commander Naval Electronic Systems Command and as Ship Superintendent Surface Type Desk Officer and Assistant Design Superintendent at Naval Shipyard Pearl Harbor. Cdr. Baskervi

Although Heat Recoverable Couplings (HRCs), used to join pipe, may be labeled innovative “state-of-the-art” technology for U.S. Naval Shipyards, they have been in use in foreign ships and high technology industries for over a decade. HRCs provide a permanent leak-proof pipe joint in specified applications without the use of high temperature and the inherent hazards of an open flame. Manufactured from NITINOL, a nickel-titanium alloy developed by the U.S. Navy, the couplings exhibit a “shape memory” characteristic. That is, they return (shrink) to a specified shape (pipe diameter) thus forming a mechanical seal when the expanded coupling is removed from a cryogenic environment and warmed above approximately —130°C. This paper provides background information into the development of NITINOL, technical explanation of shape memory metallurgy, and a summary of results, with specific examples, describing the trial use of HRCs at Pearl Harbor and Norfolk Naval Shipyards. Limited return cost data and recommendations for future use are presented. Then, using the HRC program as a basis, the Authors discuss the conservative nature of the ship repair and maintenance environment. This environment, in the Authors' opinion, couples with complex contractual constraints and requirements which serve to restrict the introduction of new ideas. An analogy is made to Russian tenacity of recent years which promotes “exploring and doing” while we in the U.S. Navy are frequently content to study.

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