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COMPUTeR-AIDeD eNGINeeRING AND SHOCK ANALYSIS FOR THe FOUNDATION OF A MODULARIZeD VeRTICAL LAUNCHING SYSTeM

NAVAL eNGINeeRS JOURNAL 1989年第2期101卷 34-43页

作者： WU, PY KANe, HP eLDeR, RR ReeVe, KM Philip Y. Wu received a B.E. degree in naval architecture and marine engineering from National College of Marine Science and Technology Taiwan and a M.E. degree in naval architecture and offshore engineering from U. C. Berkeley. Prior to joining John J. McMullen Associates Inc. (JJMA) in 1983 he worked on hydrodynamic projects at Brown and Root Inc. Houston and at Baker Marine Engineers Inc. where he developed and designed various classes of offshore jack-up rigs and semisubmersibles. After transferring to the JJMA's Arlington Va. office he focused on U.S. naval ship structural designs. He is currently a senior naval architect and a member of ASNE SNAME and ASME. Harry P. Kane is a senior project engineer in the Ship Modularity Section John J. McMullen Associates Inc. Arlington Va. He has a B.S. degree from Woodbury University and has attended numerous other training programs at the Universities of Nevada California Texas and Virginia. He has been employed as a program management engineer on a wide spectrum of design programs ranging from space booster systems remote sensors underwater acoustic systems ship systems Navy RDT&E management and technical program analysis. Currently he serves as a project leader for the application of modular weapons to different ship design programs. He is a member of the ASNE Journal Committee the Security and Intelligence Foundation and a life member of ASNE and the American Defense Preparedness Association. Robert R. Elder received a B.S.E. degree in naval architecture and marine engineering from the University of Michigan in 1969. He was commissioned an engineering duty officer and served aboard USS Guam (LPH-9) and at the Naval Ship Engineering Center Hyattsville Maryland. Prior to joining John J. McMullen Associates Inc. in 1980 he worked in various ship technical design disciplines at J.J. Henry Inc. and gained program management experience at Booz Allen Applied Research and Scientific Management Associates. He is currently the manager of the Ship M

The major objective of this paper is to describe a computer aided methodology for structural integration and analysis. Using the example of recent work in the installation of modular gun and vertical launch missile systems in warships, the reader is guided through a typical case of computer aided structural design and shock analysis, how the models are defined and tested, how the models are modified in order to be compatible with computer capacity, how structural elements are selected to simplify computations, and finally how the results of these operations are used to define the final product before construction and installation. With the maturation of the computer aided process as applied to the whole ship product, more attention must be focused on improving the individual elements of computer aided design (CAD), computer aided engineering (CAe) and computer aided manufacturing (CAM) and the integration of these processes and their products through computer integrated manufacturing (CIM). The application of the CAe techniques described herein to large maritime systems such as combatant, auxiliary and support, and commercial ships and to other large structures such as semisubmersible and fixed platforms is powerful and highly in demand. There is now a means to optimize large structural systems in terms of their discrete subsystems and components and harmonize the entire design while providing the proper design integrity at each successive level of detail.

关键词： Warships

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ReLIABILITY-BASeD FATIGUe DeSIGN FOR SHIP STRUCTUReS

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NAVAL eNGINeeRS JOURNAL 1987年第3期99卷 135-149页

作者： WHITe, GJ AYYUB, BM Gregory J. White: LCdr. USNR-R is an assistant professor of naval architecture at the U.S. Naval Academy. He received a B. S. degree in engineering mechanics from Vanderbilt University in 1975 an M. E. degree in naval architecture from the University of California Berkeley in 1981 and a Ph.D. from the University of Maryland in 1986. Dr. White served on active duty with the U.S. Navy from 1975 to 1979 first as the damage control assistant aboard the USS Reasoner (FF-1063) and then as the commissioning CIC officer aboard the USS Merrill (DD-976). After leaving active duty and while attending graduate school he worked at Mare Island Naval Shipyard in the scientific section (Code 250.1). Upon completion of graduate school he then worked for Exxon International Company as a research engineer in the R & D division of the tanker department. A lieutenant commander in the Ready Reserve Dr. White drills with the repair department of a submarine tender reserve unit and recently completed the reserve engineering duty officer qualification program. A member of ASNE since 1983 Dr. White is also a member of SNAME and the U.S. Naval Institute Dr. White received the “Jimmie” Hamilton Award for 1985. Bilal M. Ayyub:is currently an assistant professor of civil engineering at the University of Maryland. He received his B. S. degree in civil engineering from the University of Kuwait in 1980. He completed both his M. S. (1981) and Ph.D. (1983) in civil engineering at the Georgia Institute of Technology. While there he was awarded the Kuwait Foundation for the Advancement of Science Fellowship. Dr. Ayyub has extensive background in risk-based analysis and design simulation pre-stressed composite steel girders and construction engineering. He is engaged in research work involving structural reliability bridges marine structures mathematical modelling using the theories of probability statistics and fuzzy sets. His research work is sponsored by the National Transportation Safety Board the University of Maryland the Natio

In the continuing effort to apply reliability methods to marine structures, the next logical step is to include these techniques in the design process. The advantage of doing this would be the ability to design more efficient structures with some measure of certainty of the reliability level involved. The particular application in ship structural design which would benefit the most from using reliability methods is the design against fatigue failure. In this paper, some of the reliability-based methods currently being used (or proposed for use) in the design of structures against fatigue are examined. each is evaluated as to its suitability for use in the structural design of ships. In addition, the authors propose a new reliability-based fatigue design format which is based on their recently introduced Reliability-Conditioned (RC) design method and the Load and Resistance Factor Design (LRFD) code format. This approach is hoped to provide the design engineer with an easy to understand and use tool based on the LRFD format. The RC method will enable him to quickly and accurately design the components of a ship's structure such that a desired level of safety against fatigue is achieved. each of the methods discussed is used to solve a practical example. The results of that example and several others are used to discuss the relative merits of each method.

关键词： SHIPS

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WARSHIPS AND COST CONSTRAINTS

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NAVAL eNGINeeRS JOURNAL 1986年第2期98卷 41-52页

作者： HOPe, JP STORTZ, Ve Jan Paul Hope a native of Northern Virginia received his bachelor of science degree in mechanical engineering from the University of Virginia in 1969. Upon graduation he began his career in the Department of the Navy with the Naval Ship Systems Command in the acquisition of patrol craft mine sweepers and submarine rescue ships. In January 1971 he transferred to the ship arrangements branch of the Naval Ship Engineering Center. He was selected for the long-term training program at George Washington University in 1974 and completed the program in February 1976 with the degree of master of engineering administration. While at the Naval Ship Engineering Center Mr. Hope was general arrangement task leader on the AO-177 CG-47 CSGN CSGN (VSTOL) CGN-9 (Aegis) and CGN-42 and he also assisted in the landmark Naval Sea Systems Command civilian professional community study. In 1978 he was selected as acting head of the damage control section and subsequently was selected as acting head of the surface ship hydrodynamic section. In February 1980 he was promoted to head of the surface combatant arrangements design section. Mr. Hope was selected for the first class of the NA VSEA commander's development program. While on the program he served in the DDGX combat systems engineering division and the DDGX project office of NA VSEA was the assistant director for ship design in the office of the Assistant Secretary of the Navy for shipbuilding and logistics and was the director of weight engineering and the director of systems engineering for the DDG-51 project in NA VSEA. Upon completion of the program Mr. Hope was assigned as the deputy director of the boiler engineering division to create a new division as a major fleet support initiative by NA VSEA. In June 1985 he joined the staff of the Assistant Secretary of the Navy for shipbuilding and logistics. Mr. Hope was presented the Department of the Navy meritorious civilian service medal in June 1983 for his service with the Office of the Assistant Secretary of the

This paper discusses the need and processes for designing warships to meet cost constraints and for managing warship acquisition programs during the design phase to assure effective adherence to production cost constraints by the design team. The resource control methodology used during the contract design of the Arleigh Burke class destroyer, DDG-51, is examined as a potential model for controlling the cost while maintaining the combat effectiveness of warships. The paper begins with a summary of the basic issue — the relationship among unit cost, unit capability, force level numbers, and force capability — showing recent trends in destroyer costs and force levels. This introduction also includes a discussion of the cost constraint for the DDG-51 in relation to historical trends and ship construction funding allocation. The resource control methodology used to reduce and control costs of the DDG-51 is discussed with a summary of the approach, key concepts and tools, chronology of key events, examples, and results achieved. A number of observations on this methodology are then made which are followed by comments on life cycle costs. The paper concludes with remarks on the future application of the resource control methodology and areas for further work to improve future resource control efforts.

关键词： WARSHIPS

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eNeRGY POLICY: HOW FAILURe WAS SNATCHeD FROM THe JAWS OF SUCCeSS

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Review of Policy Research 1985年第3期4卷 433-444页

作者： Kashand, Don e. Rycroft, Robert W. DON E. KASH is George Lynn Cross Research Professor of Polltlcal Science and Research Fellow in Science and Public Policy at the University of Oklahoma. From 1978 through 1981 he served as Chief of the Consstvatlon Division U.S. Ceolcgical Survey. Currently he chairs the Committee on National Dredging Issues National Research Council. Dr. Kashls research interests are in the areas of science policy and energy policy. ROBERT W. RYCROFT is Assistant Professor of Public Affairs and Political Science and Deputy Director of the Graduate Program in Science Technology and Public Policy The George Washington University. He completed his Ph.D. at the University of Oklahoma and has held research and teaching positions a t Oklahoma Princeton and the University of Denver. Dr. Rycroft's research interests are in the areas of science and technology policy energy policy and bureaucratic politics.

Prior to the energy crisis of 1973, the U.S. did not have an energy policy. The failure of the American political system to anticipate and respond to the changing facts of energy was an inevitable outcome of the way policy is made. Consistent with tradition, the search for a consensus was begun from 1973–1980. The U.S. abandoned cheap energy as a high priority and adopted secure, abundant and clean energy. Conservation came to be viewed as a source of energy along with nuclear power and synfuels. Price deregulation was the most important policy tool. The Reagan administration upset this consensus and substituted the market place as the means for maximizing supplies rather than reduce demand. The federal role was limited to bringing publicly‐owned bonds into the marketplace. At the same time, it reduced ReD and concern for the environment. Thus, the Reagan administration succeeded in snatching failure from the jaws of success. Copyright © 1985, Wiley Blackwell. All rights reserved

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ReTROFITTING OF BULBOUS BOWS ON UNITeD-STATeS NAVY AUXILIARY AND AMPHIBIOUS WARSHIPS

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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.

关键词： NAVAL VeSSeLS

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AN ADVANCeD MeTHODOLOGY FOR PReLIMINARY HULL FORM DeVeLOPMeNT

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NAVAL eNGINeeRS JOURNAL 1984年第4期96卷 147-161页

作者： LIN, WC DAY, WG HOUGH, JJ KeANe, RG WALDeN, DA KOH, IY Wen-Chin Lin:heads the Ship Powering Division at the David Taylor Naval Ship R&D Center (DTNSRDC). Dr. Lin received his B.S. degree in mechanical engineering from the National Taiwan University in 1957. He was awarded his M.S. degree in naval architecture and Ph.D. in engineering science from the University of California at Berkeley in 1963 and 1966 respectively. From 1966 to 1969 he was employed by ESSO Research and Engineering Company to conduct marine hydrodynamic research for oil tankers and offshore structures. Since joining DTNSRDC in 1969 he has actively conducted and directed hydrodynamic research to advance naval ship design technology and improve ship performance. Active in national and international symposia on ship hydrodynamic research he is recognized for contributions to the ship research community. For the past six years he has been a member of the Performance Committee of the ITTC and currently serves as secretary of the committee. He is a member of SNAME and the Society of Naval Architects of Japan. William G. Day Jr:. has been employed as a naval architect at the David Taylor Naval Ship R&D Center since receiving a B.E.S. degree from the Johns Hopkins University in 1966. He obtained an M.S. E. degree from George Washington University in 1971. As Head Design Evaluation Branch of the Ship Performance Department he is responsible for model experiments to evaluate the hydrodynamic performance of ships and propulsors. He is a member of ASNE and SNAME. In-Young Koh:received his B.S. and M.S. degrees in electrical engineering from Lowell University in 1969 and 1971 respectively and his Ph.D. in applied mechanics from Rensselaer Polytechnic Institute in 1976. Dr. Koh joined DTNSRDC as an electronic engineer specializing in the application of advanced instrumentation and computer techniques to ship research and design. He is currently engaged in research and development of active control systems for naval ship applications. Dr. Koh is a member of ASNE SNAME and IEEE. David Andrew Walden:is

A ship design methodology is presented for developing hull forms that attain improved performance in both seakeeping and resistance. Contrary to traditional practice, the methodology starts with developing a seakeeping-optimized hull form without making concessions to other performance considerations, such as resistance. The seakeeping-optimized hull is then modified to improve other performance characteristics without degrading the seakeeping. Presented is a point-design example produced by this methodology. Merits of the methodology and the point design are assessed on the basis of theoretical calculations and model experiments. This methodology is an integral part of the Hull Form Design System (HFDS) being developed for computer-supported naval ship design. The modularized character of HFDS and its application to hull form development are discussed.

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SeAKeePING PeRFORMANCe COMPARISON OF AIR CAPABLe SHIPS

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NAVAL eNGINeeRS JOURNAL 1982年第2期94卷 101-117页

作者： COMSTOCK, eN BALeS, SL GeNTILe, DM Mr. Edward N. Comstock:is currently Head of the Hull Form Design and Performance Branch (SEA 3213) of the Naval Sea Systems Command. He received his B.S.E. degree in Naval Architecture and Marine Engineering in 1970 and his M.S.E. degree in Ship Hydrodynamics in 1974 both from the University of Michigan. Mr. Comstock began his career with theU.S. Navyin 1974 as a Seakeeping Specialist in the Hull Form and Fluid Dynamics Branch of the former Naval Ship Engineering Center. Achieving his present position in January 1982 Mr. Comstock was previously Head of the Surface Ship Hydrodynamics Section of SEA 3213 being responsible for recent hull form designs including DDG-51 MCM-1 and ARS-50. Before obtaining that position in 1979 Mr. Comstock's efforts were primarily aimed at developing and establishing seakeeping performance assessment and design practices. Prior to his employment by the Navy Mr. Comstock worked in the Structural and Hydrodynamics Group of General Dynamics' Electric Boat Division. A member of ASNE he is also a member of ASE and SNAME and has been active in supporting the efforts of the SNAME H-7 (Seakeeping) Panel SNAME HS-12 (Hull Instrumentation) Panel the National Science Foundation (NSF) and the NATO Armaments Group IEG6/Sub-Group 5 (Seakeeping). Ms. Susan L. Bales:has been associated with the David W. Taylor Naval Ship R&D Center (DTNSRDC) and its predecessor organizations throughout her professional career. She is currently Head of the Ocean Environment Group of the DTNSRDC Surface Ship Dynamics Branch (1561) and also serves as the DTNSRDC Program Manager of the Navy's Exploratory Development Program on Surface Waves. Her work documented by more than fifty technical publications has been directed primarily to ship seakeeping ocean environment and ship performance assessment problems. An internationally recognized authority in her field she is also active in several professional societies as well as the SNAME H-7 (Seakeeping) Panel the National Science Foundation (NSF) and the NA

The on-going debate regarding the merits of large versus small aircraft carriers raises several issues concerning the ability of various ship configurations to support sea based air operations. One such issue is the question of the relative seakeeping performance of ship alternatives. In an effort to shed some light on the matter, a comparative seakeeping assessment of nine air capable ships covering a wide range of size and hull form was performed. An evaluation of the impact of aircraft and ship motion limitations on sea based air operations and a comparison of the relative ability of the ships to conduct air operations while in a seaway are presented. The specific air operations considered are launch, recovery, and support of aircraft. The ships evaluated are CVN-71, CVA-67 (MR), CVV, LHA-1, VSS-D, DDV-2, DDV-1D, DD-963, and SWATH-6. These ships have the combined capability to operate Vertical Takeoff and Landing (VTOL), Conventional Takeoff and Landing (CTOL), Short Takeoff and Arrested Landing (STOAL), and Short Takeoff and Vertical Landing (STOVL) type aircraft. Results indicate that seakeeping performance generally degrades with decreasing displacement, that SWATH-6 performance is the least degraded, that elevator wetness can be an important degrader for ships with lower freeboards, that roll motion can be an important degrader for ships under 60,000 tons, and that percent time of operation is strongly dependent on the prevailing wave and wind environment.

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ADVANCeD CONCePTS IN CHeMICAL PROPULSION SYSTeMS FOR A 500-TON SUBMeRSIBLe

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NAVAL eNGINeeRS JOURNAL 1981年第1期93卷 63-75页

作者： URBACH, HB KNAUSS, DT QUANDT, eR Dr. Herman B. Urbach:received his B.A. degree in Chemistry from Indiana University in 1948 his M.A. degree in Physical Chemistry from Columbia University in 1950 his Ph.D. degree in Physical Chemistry from Case-Western Reserve University in 1953 and his M.S. degree in Mechanical Engineering from The George Washington University in 1976. After receiving his doctorate he was employed by Olin Mathieson Corporation Niagara Falls N. Y. as a Group Leader and Research Chemist on rocket fuels borane chemistry and the reactions of oxygen atoms with ozone. In 1959 he joined the United Technology Research Laboratories East Hartford Conn. as a Senior Research Scientist working in the area of fuel cells and electrochemistry. Presently he is a Scientific Staff Assistant in the Power Systems Division David W. Taylor Naval Ship Research and Development Center where since 1965 he has performed research and development studies on fuel cells gas turbines biphase turbines and MHD systems. Additionally Dr. Urbach was a Consultant to the Artificial Heart Program of the National Heart and Lung Institute NIH and presently is a member of the New York Academy of Science Sigma Xi American Chemical Society Electrochemical Society American Institute of Aeronautics and Astronautics and the American Society of Mechanical Engineers. Dr. Donald T. Knauss:received his B.S. degree in Mechanical Engineering from Duke University in 1956 at which time he took employment with the NASA Lewis Research Center Cleveland Ohio. Here he was involved with aircraft propulsion innovations until his entry into military service with the U.S. Air Force. After completing work toward his M.S.M.E. degree at Purdue University in 1962 he was employed by Battelle Memorial Institute Columbia Ohio where he was involved in a variety of projects related to Fluid and Thermal Mechanics. He was later employed by the Ballistic Research Laboratories Aberdeen Proving Ground Md. where he contributed to studies of the physical gas dynamics of hypers

Alternative advanced power systems designed to operate a 500-ton submersible have been examined with respect to overall weight and volume fractions. Two-week and one-month missions, with and without the conventional “at-sea” recharge capability, were considered to evaluate the impact of advanced technologies on non-nuclear submarine design. Candidate air-breathing, primary-power systems studied included Diesel, Closed-Brayton Cycle (CBC), and fuel cells. A number of options for underwater operation were based upon high-energy reactants replenlshable from Base supplies. Another set of options was considered based upon using JP-S fuel with “at-sea” rechargeable secondary power systems, including thermal-energy storage, advanced lithium-sulfur batteries, or flywheels. Replenlshable high-energy reactant systems were, on average, lower in weight and volume than the rechargeable systems for the same submerged-mission profile. Moreover, the replenlshable systems permitted an extended tactical encounter with a maximum duration of 8 to 17 hours at speeds of 30 knots without the need to resurface and recharge a secondary energy storage device. The lowest-weight rechargeable systems in the order of increasing weight were the CBC engine with advanced lithium-sulfur battery, the CBC engine with carbon-block (thermal energy storage), and the Diesel engine with advanced lithium-sulfur battery. The rechargeable systems required unacceptable weight fractions in both missions. The high-energy (replenlshable from Base supplies) systems, with the exception of the heavy acid fuel cell using LOX, were all acceptable candidates for application in the two-week mission. Only the CBC engine with a llthium-sulfurhexaflaoride heat source, the lowest-weight system in both mission groups, was acceptable for the one-month mission.

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SHIP SYSTeM SeAKeePING eVALUATION - STOCHASTIC APPROACH

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NAVAL eNGINeeRS JOURNAL 1979年第6期91卷 33-46页

作者： JOHNSON, RA CARACOSTAS, NP COMSTOCK, eN Mr. Robert A. Johnson is currently a Naval Architect in the Hull Group (SEA 32) Ship Design and Integration Directorate Naval Sea Systems Command. He received his 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 Pennsylvania State University. In 1973 he was selected for the Navy's Long-Term Training Program at the University of Michigan from which he received his M.S.E. degree in Naval Architecture in 1974. Mr. Johnson began his professional career at the Ordnance Research Laboratory Pennsylvania State University in 1959 where he was involved in the design of hydroelastic submarine models and conducted research in the area of flow-induced structural vibrations. Subsequently he joined HRB-Singer at State College Pennsylvania in 1967 as a Research Engineer and in 1969 joined the former Naval Ship Engineering Center (NAVSEC) where he was employed in the Submarine Structures Branch Surface Ship Structures Branch and the Performance and Stability Branch of the Hull Division. Currently he is the CASDAC Hull System Technical Director and also Head of the Surface Ship Hydrodynamics Section (SEA 32133) Naval Architecture Division Naval Sea Systems Command a member of ASE SNAME and Tau Beta Pi and one of the Navy Subcommittee Members of the Ship Structures Committee. Mr. Nicholas P. Casacostas is currently a Section Chief for Naval Architecture in the Washington D.C. office of M. Rosenblatt & Son Inc. His professional career has been in both Navy and commercially related fields and he has had published several technical papers dealing with the subjects of Ship Propulsion and Hydrodynamics as well as Shipping Economics and Operations. A member of ASNE since 1977 he also is a member of the Royal Institute of Naval Architects and SNAME and presently serving on the latter's H-2 (Resistance and Propulsion) Panel. Mr. Edward N. Comstock is currently a Seakeeping Speciali

The recent trend in Naval Forces has been a shrinking Fleet in both numbers and ship size. This dictates that our ships must have greater operational effectiveness if the Navy is to continue to carry out its mission in the future as it has done in the past. The seakeeping performance of a ship is a major determinant of its overall operational effectiveness. The methodology presented in this paper is a comprehensive approach to the evaluation of a ship's seakeeping performance. The scope of this methodology encompasses the assessment of ship mission scenarios and the relative importance of associated mission requirements as well as the probabilistic description of the uncertainties imposed by the variable ocean environment. The methodology is presented in a general sense so that the seakeeping performance of a ship's configuration can be evaluated as a function of mission scenario, mission area, sea state, ship heading, and speed. In order to utilize the full potential of the methodology, more refined scenario descriptions and more accurate environment specifications must be obtained. A simplified example is presented in which a comparison of the operational effectiveness of two small hull forms is made, using information now available to the designer. It is anticipated that the methodology presented can be used not only as a powerful tool in the decision-making process of practical ship design, but also as the basis for parametric studies of mission strategies.

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Abstracts

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environmental Management 1977年第4期1卷 354-369页

作者： A. S. Donigian N. H. Crawford e. J. Lehmann R. M. Darnell W. e. Pequegnat B. M. James F. J. Benson R. A. Defenbaugh W. U. Kuehnhold G. L. Ochs K. V. Coram M. F. Smith P. W. Crockett G. e. Habercom R. J. Brown J. M. Heikoff R. Bartha R. M. Atlas O. Fitzhugh Fairchild H. e. Garth R. C. Ragaini K. D. Pimentel G. H. Pfeiffer N. K. Whittlesey V. Klemas G. Davis S. Kaufman D. Bartlett R. H. Rogers N. Shah C. W. Chen M. Lorenzen D. J. Smith W. D. Philpot G. R. Davis R. H. Roger H. Wang R. Henry R. Rogers L. Reed W. Philpot F. e. McJunkin R. H. Plumb D. D. Woodbridge P. C. Cooper J. H. Strohl J. L. Hern I. K. Iskandar R. S. Sletten D. C. Leggett T. F. Jenkins J. L. vanGenderen B. F. Lock F. Parker D. Brower D. Frankenberg D. F. Polls W. R. Ott M. R. Overcash D. M. Covil J. W. G1ll1am P. W. Westerman F. J. Humenik L. H. Smith H. G. Larew S. J. Broderius L. L. Smith T. G. Shea J. D. Stockton U. A. Brungs G. F. Gifford J. C. Buckhouse F. e. Busby C. M. Weiss e. J. Kuenzier Hydrocomp Inc. Palo Alto Environmental Research Lab. Athens National Technical Information Service Springfield Tereco Corp. College Station Environmental Research Lab. Corvallis Inst. fuer Meereskunde Kiel Univ. West Germany Science Information Services Dept. Franklin Inst. Research Labs. Rockville Dept. of Public Administration. National Oceanic and Atmospheric Administration State of Univ. of New York at Albany Rockville Office of Sea Grant USA Department of the Navy Washington D.C. Criteria and Evaluation Div. Environmental Protection Agency Washington D. C. Lawrence Livermore Lab. Energy Research and Development Administration California Univ. Livermore Pullman. Coll. of Agriculture. Office of Water Research and Technology Washington State Univ. Washington D.C. Newark. Coll. of Marine Studies. National Science Foundation Delaware Univ. Washington D.C. Tetra Tech. Inc. Lafayette Great Lakes Environmental Research Lab. National Oceanic and Atmospheric Administration Ann Arbor Dept. of Environmental Sciences and Engineering. Agency for International Development Washington D.C. Office of Science and Technology North Carolina Univ. at Chapel Hill USA Army Engineer Waterways Experiment Station Vicksburg Florida Inst. of Tech Melbourne Univ Center for Pollution Research USA West Virginia Univ. Morgantown Water Research Inst. Office of Water Research and Technology Washington D.C. Cold Regions Research and Engineering Lab Hanover Fairey Surveys Ltd. Maidenhead England NASA Earth Resources Survey Program Washington D.C. North Carolina State Univ. Raleigh National Oceanic and Atmospheric Administration Rockville Environments Protection Agency Washington D.C. Booz-Allen Applied Research Inc. Office of Research and Development Chicago North Carolina Resources Research Inst. Raleigh Office of Water Research and Technology School of Agricultural and Life Sciences Washington D.C. Gillette Research Inst. Inc. Rockville Federal Highway Administration Washington D.C. St

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