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RETROFITTING OF BULBOUS BOWS ON UNITED-STATES NAVY AUXILIARY AND AMPHIBIOUS WARSHIPS

NAVAL ENGINEERS JOURNAL 1984年第6期96卷 40-51页

作者： CHUN, SK HOUGH, JJ ENGLE, AH FUNG, SC Stephen K. Chunis a graduate of the Maritime College of the State University of New York class of 1981 from which he received a B.E. degree in naval architecture and his license as a Third Assistant Engineer from the U.S. Coast Guard. Since graduation he has worked for the U.S. Navy as a naval architect with the Hull Form and Hydrodynamics Performance Division (SEA 55W3) of the Naval Sea Systems Command. Currently he is the task leader for hydrodynamic design for the DDG-51. He is also responsible for bulbous bow and appendage design for surf ace ships. Mr. Chun is a member of ASNE SNAME and ASE. Jeffrey J. Hough:is currently a naval architect with the Hull Form and Hydrodynamic Performance Division (SEA 55VV3) of the Naval Sea Systems Command (NA VSEA). In his current capacity he is a member of the Surface Ship Hydrodynamics Branch and is the divisional coordinator for computer supported design (CSD) technical director for the hull form design system (HFDS) Hull Engineering Group (SEA 55) assistant coordinator for CSD SEA 55 CSD coordinator for the DDG-51 contract design and SEA 55W3 project engineer for aircraft carrier/aviation support ship hydrodynamics. Mr. Hough received his B.S.E. degree in naval architecture and marine engineering in 1978 and his M.S.E. degree in naval architecture and marine engineering in 1979 from the University of Michigan. He began his career with the U.S. Navy in 1979 as an Engineer-in-Training in the Ship Design and Integration Directorate of NAVSEA. Prior to his current assignment Mr. Hough was the technical director responsible for the hull form and hydrodynamics energy conservation program and technical specialist for design practices for resistance and powering margins and hull form geometry. A member of ASNE since 1979 Mr. Hough is also a member of SNAME ASE and the U.S. Naval Institute. Allen H. Engleis a naval architect with the Hull Form Design and Performance Division of the Naval Sea Systems Command. He received his B.S. degree in engineering science from th

To meet energy conservation goals of the U.S. Navy, its attention has been focused on ways to reduce individual ship total resistance and powering requirements. One possible method of improving ship powering characteristics is by modifying existing individual ship hulls with the addition of bulbous bows. This paper will identify the merits of retrofitting bow bulbs on selected U.S. Navy auxiliary and amphibious warfare ships. A procedure for performing a cost-benefit analysis will be shown for candidate ship classes. An example of this technique for an amphibious warfare ship will also be provided. A brief discussion of future methods to be used for bulbous bow design such as application of systematic model test data and numerical hydrodynamic techniques will be given.

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FOCAS - A NEW LOOK IN COMBAT system SIGNAL TRANSMISSION

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NAVAL ENGINEERS JOURNAL 1983年第3期95卷 51-62页

作者： SLEMON, CS ABBOTT, JW Charles S. Slemon:graduated from Brown University with an Sc.B. Degree in Physics and did graduate work in semiconductors at the School of Electrical Engineering Cornell University sity receiving an M.S. degree. In 1972 he received an NSF grant to study the temperature dependence of crystal structures and while at Cornell he developed various fabrication and testing techniques with new semiconductor compounds. Upon joining Tetra Tech Inc. in 1976 he established and is responsible for their fiberoptic laboratory. He has carried out many programs involved in fiberoptic links for secure communication for various government agencies in which he authored numerous classified reports and developed special fiberoptic devices and system. He has also carried out studies and hardware development and evaluation programs for the military and commercial clients including marine and deep sea uses of fiberoptics for NOSC ONR and other off-shore industry contractors. For NAVSEA he authored several reports investigating the potential uses and advantages that fiberoptic technology offers to Navyshipboard operations. Mr. Slemon has published many articles and made numerous presentations in the field of fiberoptics. He has also taught several short courses on the subject and is the holder of several patents. Mr. Jack W. Abbott:received his BSME degree from Stanford University in 1960 and his Masters (MEA) degree from George Washington University in 1975. He holds a Professional Engineer License in the state of California. Mr. Abbott served as a naval officer – aboard a destroyer for 3 years. He worked for the Garrett Corporation for nearly 8 years involved with gas turbine design development and application. For the last 15 years Mr. Abbott has been directly involved with all aspects of destroyer design including the Canadian DDH 280 U.S. DD 963 and DD 993 destroyers. Currently Mr. Abbott is the NAVSEA Program Manager of the Ship Systems Engineering Standards (SSES) Program – responsible for developing combat system inter

This article introduces the concept of a truly Universal Signal Distribution Network. The emergence of fiberoptic technology as a viable signal transmission medium now gives the N avy the opportunity to use Fiber Optic Cabling and Switching (FOCAS) to implement a universal network. A FOCAS Network can handle all present or future shipboard signal distribution architectures such as point-to-point or data bus. Furthermore, compared to existing cable installations, this network offers lower cost through reduction of the number of cables, weight, and volume, freedom from interference and EMP effects, increased redundancy, and higher operational flexibility. In addition, it will easily satisfy all future expansion or changes in signal distribution by providing at least a ten fold increase in data rate capacity over existing electrical cabling. This last feature alone holds the potential for allowing upgrading and conversion of modern combat systems without need for adding new cabling in the ship. Along with the introduction of the concept of a Universal FOCAS network and its practical benefits and capabilities, this article presents a trade-off between the Radar Data Distribution Network on the FFG and an analogous FOCAS network. Though far from optimized, the resultant FOCAS network shows that the conversion of existing shipboard networks to FOCAS is straightforward and provides a reduction of at least 90% in cable volume and weight and lower cost in cable purchase and installation.

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Repair of TMI-1 OTSG tube failures. Use of a kinetic tube-expansion process to resesal tubes within the upper tube sheet provides a cost-effective and relatively low-expousure repair process

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Process Safety Progress 1983年第3期2卷 173-175页

作者： David G. Slear Robert L. Long James D. Jones F. S. Giacobbe GPU Nuclear Parsippany N.J. 07054 In 1974 David Slear joined General Public Utilities Nuclear Corp. where his responsibilities included the design review of components for new nuclear power plants and troubleshooting component failures both in nuclear power and fossil plants in the GPU System. In 1978 he was promoted to Preliminary Engineering Manager and was responsible for coordinating the preparation of design criteria for several coal-fired plants and combustion turbines to be installed throughout the 1980s. Immediately following the TMI-2 accident he was placed in charge of coordinating the establishment of criteria and the design for numerous modifications that were perceived to be required in order to maintain core cooling and a stable safe shutdown condition for the TMI-2 reactor. Subsequently he was promoted to Manager of TMI Engineering Projects which involved establishing the criteria and coordinating the engineering for the numerous modifications required to TMI-1 as a result of the Lessons Learned from the accident at TMI-2. He holds a B.S. Degree in Mechanical Engineering and an M.S. Degree in Mechanical Engineering. Since April 1982 Robert L. Long has been Vice President and Director of the Nuclear Assurance Division of the GPU Nuclear Corp. This includes responsibilities for the Quality Assurance Department the Nuclear Safety Assessment Department the Training & Education Directorate and the Emergency Preparedness Department. Joining GPU in 1978 he has been actively involved with Three Mile Island recovery and restart activities since the spring of 1979. From February 1980 through March 1982 he served as Director–Training & Education for GPU Nuclear. He holds the B.S. degree in Electrical Engineering from Bucknell University and the M.S.E. and Ph.D. degrees in Nuclear Engineering from Purdue University. He has written numerous publications and has presented lectures on “energy and the environment” issues all over the United States and in Southeast Asia. Since joining GPU Nuclear Corpo

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AN OVERVIEW OF THE ROLE OF THE NAVSEA HUMAN-FACTORS engineering program IN SHIP DESIGN

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NAVAL ENGINEERS JOURNAL 1983年第4期95卷 139-152页

作者： STEIN, NI BENEL, RA MALONE, TB Mr. Norman I. Stein:received his degree in mechanical engineering from the University of Iowa in 1943. MK Stein began his career with the Bureau of Ships Department of the Navy. After his military service with the Army of Occupation in Japan he has held positions with the Corps of Engineering Atomic Energy Commission Walter Reed Army General Hospital and the Protective Structures Development Center Department of the Army. He returned to the Naval Sea Systems Command in 1967 and is currently with the Manning and Controls Integration Branch SEA 55 W16. Mr. Stein is a registered professional engineer in New York state and also is a certified fallout shelter analyst with the Department of the Army. He has authored a comprehensive study on air distribution studies in multi-room shelters presentedpapers on human factors engineering to the Association of Scientists and Engineers and recently contributed a chapter on human factors engineering which will be incorporated in the proposed Naval Sea Systems Handbook on Surface Ship Design. Russell A. Benel:received his Ph. D. in engineering psychology from the University of Illinois at Urbana-Champaign. He is currently a Senior Research Scientist with Essex Corporation where he is the manager of the Man-Machine Systems Department. He has been responsible f o r scientific studies associated with the Human Factors Engineering f o r ships program under contract to the Naval Sea Systems Command specifically the development application and validation of human factors engineering technology f o r surface ship systems such as aircraft launch and recovery propulsion engineering combat direction weapons and total ship systems. He is currently providing Human Factors Engineering Support on the DDG-51. His other activities include a variety of research development test and evaluation activities for military systems. He had been with the Crew Performance Branch of the Crew Technology Division at the USAF School of Aerospace Medicine as a National Research Council Postd

This paper provides a context within which the role of human factors engineering (HFE) for Naval ship design may be understood. HFE is defined and its history as part of engineering design teams is traced. The role of HFE in ship systems design is defined, and the HFE technology for Ships program, managed by SEA 061R, is described. The rationale for inclusion of HFE in the design process is presented, the methodology whereby it is incorporated into the design process is detailed, methodology to assess the application of HFE is outlined, and the benefits that will accrue as a result of inclusion of HFE considerations in the design process are documented. The counterpoint to inclusion is illustrated through instances of design-induced human errors. A specific application of HFE in the acquisition process is illustrated through use of the Landing Craft, Air Cushion HFE program plan. The difficulties which may be encountered as the size of the target system expands are described. Potential roadblocks to the required incorporation of HFE are examined for their source and possible ameliorative steps.

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EDITOR'S CLIPBOARD: RELIABILITY, MAINTAINABILITY, AVAILABILITY ‐ THE REAL QUESTION

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Naval Engineers Journal 1983年第5期95卷 76-82页

作者： Richardson, James C. Berman, Paul I. Capt. James C. Richardson Jr. a surface warfare officer was graduated from the U.S. Naval Academy U.S. Naval Postgraduate School and the American University. With proven subspecialities in Material Management and Computer Systems Technology he has served as Commanding Officer USS Hepburn (FF-IOSS) Program Manager of the Mk 86 Gun Fire Control System at the Naval Sea Systems Command and is currently Commanding Officer of the Navy Regional Data Automation Center Washington D. C. Paul Berman is manager of Product Support Engineering for Lockheed Electronics Company Plain field New Jersey. His department is responsible for logistics planning and analysk supply support field engineering training and technical documentation in support of the division as products. His 30 years of experience in product support include preparation of logistics plans engineering data technical publications and training materials. He is also an adjunct instructor at Rutgers University. Mr. Berman received a BA from Queens College in 1951 and an MA from Hunter College in 1957. He attended the U.S. Army Signal Corps radar school and was a field radio and radar repairman during the Korean War. He is currently a member of the Society of Logistics Engineers and the National Management Association.

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COMMERCIAL APPLICATIONS OF ADVANCED MARINE VEHICLES FOR EXPRESS SHIPPING

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NAVAL ENGINEERS JOURNAL 1983年第3期95卷 283-300页

作者： LUEDEKE, G FARNHAM, RB JR. George Luedeke Jr.: received his BS degree in Mechanical Engineering from Massachusetts Institute of Technology and his MS degree in Product Design from Illinois Institute of Technology. Early in his career Mr. Luedeke joined General Motors Corporation as a designer responsible for development of people mover and rail rapid transit systems. From 1964 to 1974 he was with Hughes Aircraft Company. At Hughes he performed analyses and developed designs for a wide variety of program and proposal efforts such as: High Speed Ground Transportation (DOT) Task Force Command Center (NAVY) Panama Canal Marine Traffic Control Center (Panama Canal Co.) Royal Iranian Navy Command Center (Iran) Tactical Information Processing and Interpretation Center (Air Force) and WALLEYE CONDOR and PHOENIX Missile Systems (NAVY). He also had marketing development responsibilities related to the diversification of Hughes resources in civil business areas such as: Automatic train control (WMATA BARTD SCRTD) water/sewage treatment plant automation (Santa Clara County) Aqueduct Control (SWR) Hydrometeorological data collection (BPA WMO) and Salton Sea basin systems analysis (Dept. of the Interior). He was responsible for combat system integration for the Hughes 2000T Surface Effect Ship (SES) proposal. He also conducted detailed studies concerning ship flexure for the Improved Point Defense Target Acquisition System Program and for the definition of operational High Energy Laser weapon installations on a series of conventional monohulls (DLG DD and CVN). Since 1974 Mr. Luedeke has been employed at RMI Inc. (formerly Rohr Marine Inc.). During this time he has held several positions. His responsibilities have included directing a number of studies on advanced SES concepts managing activities defining mission/cost effectiveness of military and commercial SES's including defining the operational benefits and enhanced survivability characteristics of cargo SES's for high speed military sealiftfor NA TO and Southeast Asia

This paper will present the results of a marketing, engineering, and economic analysis of advanced marine vehicles done by IMA Resources, Inc. and RMI, Inc., in support of a Maritime Administration project to study “Multimode Express Shipping”. The study was conducted in 1981 and examined the economic benefits of using advanced marine vehicles as express cargo vessels in domestic and international service. Commodity characteristics, desirable express carrier rates, and potential high payoff service and route alternatives were identified. Advanced marine vehicles were surveyed and sized to meet desirable deadweight and block speed objectives. The costs of operating these craft on a variety of trade routes were calculated using an advanced marine vehicle economic analysis program. Revenues, expenses, break-even, profit and loss, cash flow requirements, tax summary and economic indicators (i.e., cost/ton – mile, etc.) were projected over the expected life of the vehicles as was return on investment. Traffic density and market penetration considerations narrowed the field of choice to smaller sized advanced marine vehicle carriers (i.e., 50 and 250 ton deadweight) and to three international and five domestic routes.

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THE DESIGN OF VARIABLE PAYLOAD SHIPS

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NAVAL ENGINEERS JOURNAL 1982年第2期94卷 147-178页

作者： BROOME, GW NELSON, DW TOOTLE, WD Granville W. Broome Jr.:received his BS degree in Civil Engineering from the North Carolina State University in 1967 and MS degree in Naval Architecture from the Massachusetts Institute of Technology in 1970. He started his career at the former Naval Ship Engineering Center working on preliminary structural designs for FFG-7 CVAN-71 and PHM. Subsequently he participated in design integration of FFG-7 DG (AEGIS) CSGN and CG-47 Class ships. Later he served as the Lead Naval Architect for feasibility studies of LSD-41 T-AGOS and T-AO and feasibility studies as well as concept design of ARS-50. Mr. Broome is currently the Head of the Surface Combatant Section (SEA 33112) in the Advanced Design Division of the Naval Sea Systems Command. He is also serving as the Assistant Program Manager for Ship Design Concepts on the Ship Systems Engineering Standards (SSES) Program. In this capacity he is responsible for feasibility studies of the Variable Payload Ships. Mr. Broome is a member of ASNE and ASE. David W. Nelson:graduated from the University of North Carolina at Chapel Hill with a BA degree in History prior to joining the Navy in 1963. He served inUSS Conyngham (DDG-17)and at the Naval Communication Station Greece. Upon release from active duty he entered North Carolina State University where he earned a BS degree in Civil Engineering. He joined the Naval Ship Engineering Center Hyattsville Maryland in 1973. He was the General Arrangements Task Leader for the DD-993 Contract Design the CG-26 Modernization and the DDG-2 Class Conversion. He is currently the Manager for Destroyer Design in the Ship Arrangements (SEA 3211) Group of the Naval Sea Systems Command where his primary responsibility is the general arrangements of DDG-51. He is also the Assistant Program Manager for Ship Design on the Ship Systems Engineering Standards Program. Mr. Nelson is a member of ASNE ASE and SNAME. William D. Tootle:received his BSEE degree from the North Carolina A&T State University in 1960. Between 1960 and 1964 h

This paper presents the issues involved and the approach taken in the design of Variable Payload Ships. The objectives in Variable Payload Ship design are: first, to permit concurrent design and development of the ship and its initial combat system; and second, to simplify the testing, installation, and upgrading of the combat system over a ship's life cycle. In order to accomplish these objectives, Ship systems engineering Standards and Design Criteria are being developed for the VPS platform and payload. Based on the Mid-Size Combatant design conducted so far, indications are that the abovementioned objectives can be met — giving the Navy maximum flexibility to choose the latest and most appropriate combat suite for each of its surface combatants during both initial acquisition and entire life cycle.

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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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THE UNIMAST CONCEPT - A MAJOR DEPARTURE IN SHIPBOARD RADAR ANTENNA INSTALLATION PHILOSOPHY

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NAVAL ENGINEERS JOURNAL 1981年第2期93卷 82-89页

作者： BIONDI, RJ KRUGER, BE THE AUTHORS: Mr. Roy J. Biondi:received his B.S.E.E. degree from the University of Illinois and has since taken additional graduate studies at The George Washington University. Currently he is Head of the Ship Type Combat System Integration Branch (Code-6141) Naval Sea Systems Command. Prior to his present appointment he served as Radar Branch Head in the former Naval Ship Engineering Center (NA VSEC) and was responsible for development and production of shipboard radars such as the AN/SPS-48 AN/SPS-49 AN/SPS-52 and AN/SPS-55. His primary Navy Radar and Combat System experience was attained during his earlier career in the Navy's Bureau of Ships where he was the AN/SPS-48 Radar Project Manager as well as the Navy Tactical Data System Data Processing and Display Project Engineer - a total of twenty years of Navy Radar and NTDS experience. In addition to ASNE which he joined in 1977 he is a member of IEEE and ASE and has had several technical papers published on Radar Radar Processing and Transmission Lines. Mr. Bradford E. Kruger:is a Senior Member of the Technical Staff at ITT Gilfillan Los Angeles Calif. He received his B.S.E.E. and M.S.E.E. degrees from the University of California at Berkeley in 1955 and 1956 respectively and has been with Gilfillan since then. For the past fifteen years he has been involved in the concept formulation and design of numerous radar systems for the Army Navy and Marine Corps. Most recently he has been the Principal Radar Systems Engineer for the SSURADS then the DDGX Program. In addition to ASNE which he joined in June 1980 he is a member of IEEE and holds several patents in Radar and Antenna Technology.

The best topside location for an antenna is on top of the highest mast on the ship, thus affording all-around coverage and minimum interference. However, usually only one antenna can occupy that site. Modern naval combatants have numerous antennas, and the necessary compromises in mounting all of them means that even the best site is often electro-magnetically compromised by adjacent structures and other antennas. A contrary approach is to mount larger antennas lower, and to design the ship to minimize blockage. This is “The UNIMAST Concept,” which argues for a single mast on which are mounted all the ship's major rotating surveillance antennas. The larger antennas rotate around the lower part of the mast, while lighter antennas, e.g., surface search, are sited above. This paper discusses the degradation of sidelobes due to present topside design and numerically relates degradation to Electronic Counter-Countermeasures (ECCM) performance. Removal of that degradation via the UNIMAST Concept requires that a device known as an Annular Rotary Coupler (ARC) be used. The development of just such a high power, wide-band ARC on a Navy-sponsored R&D contract is herein described. Also described is the potential backfitting of the UNIMAST Concept to existing ships; e.g., the DDG-993. Battle damage vulnerability of the UNIMAST Concept with respect to a conventional two mast design is addressed. It is argued that the UNIMAST Concept affords no degradation in vulnerability due to improved potential for protecting vital antenna parts.

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COMPUTER AIDS FOR SHIP DESIGN, INTEGRATION AND CONTROL

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NAVAL ENGINEERS JOURNAL 1980年第2期92卷 73-87页

作者： CARLSON, CM JOHNSON, RA HELMING, FW Mr. Craig M. Carlson received his B.S. degree in Naval Architecture and Marine Engineering from the University of Michigan in 1970 and began his career with the Department of the Navy at the Naval Ship Engineering Center (NAVSEC). In 1972. he returned to the University of Michigan under the NAVSEC Long Term Training Program and received his M.S. degree in Naval Architecture and Marine Engineering. After returning to the Ship Arrangements Branch at NAVSEC. he was assigned as Task Leader for General Arrangements for the PGG PCG PHM. and MCM ship designs and was awarded Outstanding Performance Awards in 1974 and 1975. In addition he was Manager of the Arrangement Subsystem of the Navy's Computer-Aided Ship Design and Construction Program (CASDAC). In October 1979. he became Manager of the CASDAC Hull Design System. Currently. he also is enrolled in the M.S. of Computer Science Program at Johns Hopkins University. Mr. Carlson previously has presented technical papers at ASNE Day 1974 and 1978 as well as at the 1979 DOD Manufacturing Technology Advisory Group Conference. Besides ASNE. which he joined in 1972. he is a member of SNAME. ASE. and the U.S. Naval Institute. Mr. Robert A. Johnson is a Naval Architect in Surface Combatants Design (SEA 03D3). Ship Design Integration Directorate Naval Sea Systems Command. He received an Associate in Engineering degree in Drafting and Design Technology in 1959. his B.S. degree in Aerospace Engineering in 1965. and his M.S. degree in Engineering Mechanics in 1970. all from the Pennsylvania State University. In 1973. he was selected for the NA VSEC Hull Division s Long Term Training Program at the University of Michigan subsequently receiving his M.S.E. degree in Naval Architecture in 1974. Mr. Johnson began his career with the Ordnance Research Laboratory at Pennsylvania State University in 1959 where he worked. on the design of hydroelastic submarine models and conducted research in the area of flow induced structural vibrations. In 1967 he joined HRB-Singer at State Colle

This paper presents an integrated approach to Computer-Aided Ship Design for U.S. Navy preliminary and contract design. An integrated Hull Design system (HDS), currently under development by the Hull Group of the Naval Sea systems Command (NAVSEA 32). is the vehicle for the discussion. This paper is directed toward practicing ship design professionals and the managers of the ship design process. Primary emphasis of this paper, and of the development effort currently under way, is on aiding ship design professionals in their work. Focus is on integration and management control of the extremely complex set of processes which make up naval ship design. The terminology of the Ship Designer and Design Manager is used. The reader needs no familiarity with the technologies of computer science.

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