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History and technology 1999年第1期16卷 103-110页

作者： Jennifer K. Alexander[a] David De Vorkin[b] Phillip Stevens Thurtle[c] [a] Department of History University of Washington Seattle Washington USA [b] National Air and Space Museum Washington D.C. [c] Program in the History of Science and Technology Stanford University Stanford California USA

Teny S. Reynolds and Stephen H. Cutcliffe,*** and the West: A Historical Anthology from technology and Culture(Chicago and London: University of Chicago Press, 1997), pp. *** *** and Spectacle: The Work ofjodrell Bank in Post‐War British ***, 1998. pp. Xx+260. IIIus., Index., *** *** Power: A Social History of American Energies(Cambridge, Mass.: MIT Press, 1998), pp. xii + 331.

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Applying fuzzy functions and sequential coordination to optimization of machinery arrangement and pipe routing

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NAVAL ENGINEERS JOURNAL 1998年第6期110卷 43-54页

作者： Wu, BC Young, GS Schmidt, W Choppella, K Dr. Bi-Chu Wu:received a PhD in Mechanical Engineering from the University of Maryland College Park in 1991. She has worked on projects involving naval architecture design optimization solid mechanics and database development. Presently a senwr engineer with Angle Incorporated Dr Wu's research interests are in design optimization and fuzzy logic applications. Dr. Gin-Shu Young: a senior engineer with Angle Incorporated holds a PhD in Mechanical Engineering from the University of Maryland College Park. As a guest researcher with National Institute of Standards and Technologies from 1990 to 1993 he worked on vision-based navigation for autonomous vehicles. His experience also includes applications of optimization fuzzy logic neural network and genetic algorithm methods to engineering system design Mr. William Schmidt:co-founded Angle Incorporated in 1990 and has served as Vice PresidentlChiefScientist during this tame. He holds a B.Sc. in Applied Science from the Naval Acadt?my and an M.Sc. in Physics from the Naval Post Graduate School. He has cner 20 years experience in technical leadership material and personnel management. He has led the application of computer aided design (CAD) and Product Model Information Exchange to the shipbuilding industry. His experience also includes leading the amlication of model based operational analysis to support the Live Fire Test Program for DDG 51 Class Destroyers. Mr. Krishna M. Choppella:is a Sofware Engineer at Eidea Laboratories Incotporated where he works on componentbased distributed enterpvise frameworks. He has been involved in creating data analysis tools for the US Nay by integrating CAD modeis databases and graphical front ends. His work in the Masters degree program in Mechanical Engineering at the University of Texas at Austin was in di0ddase.r spectroscopy of combustion products in porous-matri burners. He received his Bachelors degree in Electrical Engineering in India. He was a Research Associate at the Centre for Laser Technology and Project Engi

Ship design is often multidisciplinary involving several design elements with various types of objectives and constraints (O/C) some easily described as mathematical formulas, others better modeled as descriptive assertions. This paper describes a method based on fuzzy functions and an integrated performance index to model O/C using descriptive assertions to be used with mathematical formulas in optimization. Another issue addressed in this paper concerns the coordination of design elements when sequentially coupled, that is, when one leads the other and the performance of the follower depends greatly on the design of the leader. Based on neuro-fuzzy techniques, the method described here coordinates and optimizes sequentially coupled elements. The two methods are applied to machinery arrangement (MA) and pipe routing (PR). Preliminary models for optimization of MA and PR are described considering convenience, producibility: engine room size, interference and location as factors in the O/C set. Some test results from MA/PR applications are presented and discussed. The methods are generic and can be extended to other elements in ship design. They are mutually independent and may be used separately Two advantages of their use are an improvement in overall performance and a reduction in the need for redesign of elements.

关键词： Optimization

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PARALLEL AND DISTRIBUTED TLM COMPUTATION WITH SIGNAL-PROCESSING FOR ELECTROMAGNETIC-FIELD MODELING

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INTERnational JOURNAL OF NUMERICAL MODELLING-ELECTRONIC NETWORKS DEVICES AND FIELDS 1995年第3-4期8卷 169-185页

作者： SO, PPM ESWARAPPA, C HOEFER, WJR NSERC/MPR Teltech Research Chair in RF Engineering Department of Electrical and Computer Engineering University of Victoria Victoria British Columbia V8W 3P6 Canada Poman So received his B.Sc. degree in computer science and physics from the University of Toronto Toronto Onatario Canada in 1985. He obtained his B.A. Sc. and M.A.Sc. degrees in electrical engineering (summa cum laude) from the University of Ottawa Ottawa Ontario Canada in 1987 and 1989 respectively. Mr So was a research engineer in the University of Ottawa from January 1989 to October 1991 his research interests included CAD techniques of microwave circuits and numerical methods for electromagnetic wave modelling. He specialized in the development of electromagnetic engineering CAD software and successfully implemented a number of electromagnetic wave simulators based on the two-dimensional and three-dimensional transmission-line matrix methods. From August 1990 to February 1991 he accompanied Professor W. J. R. Hoefer to Rome Italy and Sophia Antiopolas France. During that time he implemented a parallel version of the 3D-TLM simulator for the CM-2 Connection Machine using C-Star and X Windows Library. He is a research engineer and a Ph.D. student at the University of Victoria Victoria British Columbia Canada. He ported the 2D- and 3D-TLM simulators to DECmpp 1200 massively parallel computer using MPL C and C++. He also combined OSA90/hope a commercially available microwave CAD program with a 2D-TLM simulation module for geometry optimization using the Datapipe technique of OSA90/hope. Recently he has developed a distributed client-server computing technique for the TLM method this technique could accelerate the TLM simulation by more than an order of magnitude. Channabasappa Eswarappa received the M.Tech. degree in electrical engineering from the Indian Institute of Technology Kanpur India in 1983 and Ph. D. degree from the University of Ottawa Canada in 1990. He worked as an Assistant Executive Engineer and later as

This paper describes the implementation of transmission-line matrix (TLM) method algorithms on a massively parallel computer (DECmpp 12000), the technique of distributed computing in the UNIX environment, and the combination of TLM analysis with Prony's method as well as with autoregressive moving average (ARMA) digital signal processing for electromagnetic field modelling. By combining these advanced computation techniques, typical electromagnetic field modelling of microwave structures by TLM analysis can be accelerated by a few orders of magnitude.

关键词： Mathematical models

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Abstract

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Pflügers Archiv 1996年第6期431卷 R322-R356页

作者： L. J. Andries S. U. Sys A. L. Meulemans J. A. J. Schuurkes B. Vanheel J. Van de Voorde P. De Smet J. Li W. Van Driessche B. Flamion S. Foulon M. Abramow P. Calders W. Eechaute E. Lacroix I. Weyne D. Hoeben C. Burvenich P. Fransen D. Van Bedaf M. Demolder R. Ouedraogo P. Lebrun A. Herchuelz M. -H. Antoine S. Vandenput D. Votion N. Anciaux D. H. Duvivier T. Art P. Lekeux Y. Ghafir M. Geurts E. Hermans J. -M. Maloteaux B. Perrad B. Noel F. Lagache J. L. Bister R. Paquay G. Derycke M. A. Vandermeir S. de Brouwer C. -A. Porret N. Stergiopulos J. -J. Meister M. Verbeke N. Lameire N. M. De Clerck J. De Schuytter J. Tytgato G. Buyse J. Eggermont G. Droogmans B. Nilius P. Daenens S. Salomone O. Feron C. Dessy N. Morel T. Godfraind A. M. Aloisi P. Sacerdote L. Lodi G. Carli C. Carobi G. Garinei U. C. Miniaci P. Scotto M. Sabatino P. Sardo L. Iurato V. La Grutta M. A. Bagni G. Cecchi E. Cecchini F. Colomo P. Garzella R. Bottinelli S. D. H. Harridge M. Canepari C. Reggiani Saltin Reggiani D. Bambagioni G. Fanò G, Menchetti P. Danieli-Betto A. Esposito R. Betto A. Megighian M. Midrio D. Danieli Betto C. Orizio D. Liberati C. Locatelli D. De Grandis A. Veicsteinas D. Angoli D. Delia E. Wanke M. Bramucci A. Miano L. Quassinti E. Maccari O. Murri D. Amici G. Cibelli S. Jüngling S. Schoch H. H. Gerdest G. Thiel I. Demori C. Bottazzi A. Voci E. Fugassa A. Barreca F. Minuto G. Gallo S. Fulle S. Belia G. Menchetti M. Cacchio G. Gastaldi U. Laforenza G. Ferrari G. Rindi M. G. Doni E. Padoin O. Residori M. Cesaro L. Toma A. Rubini F Mutinelli L. Paulesu R. Romagnolie M. Cintorino P. Pippia M. A. Meloni L. Sciola A. Spano M. Cogoli-Greuter A. Cogoli A. Sardini G. M. Mintenig M. A. Valverde F. V. Sepùlveda D. R. Gill S. C. Hyde C. F. Higgins P. A. McNaughton A. Spena M. T. Arcuri S. Bonofiglio R. Chimenti C. Covello T. De Cicco S. Mazzulla G. Martino A. Tottene A. Moretti D. Pietrobon M. C. Baccari F. Calamai G. Staderini E. Cova R. Marelli P. Sommi U. Ventura A. M. Lombardi R. Fabris C. Pagano G. Federspil R. Vettor R. Mancinelli P. To Laboratory of Physiology RUCA University of Antwerp Belgium Dept. of Gastroint. Pharmacol. Janssen Research Foundation Beerse Belgium Department of Physiology and Physipathology University of Gent De Pintelaan 185 Gent Belgium Laboratory of Physiology K. U. Leuven Leuven Belgium Laboratory of Pathophysiology University of Bruxelles (ULB) Brussels Belgium Laboratory of Normal and Pathological Physiology University of Gent Belgium Department of Physiology Biochemistry and Biometrics Faculty of Veterinary Medicine University of Ghent Merelbeke Belgium Laboratory of Physiology University of Antwerp (RUCA) Antwerp Belgium Lab. de Pharmacodynamie et de Thérapeutique Université Libre de Bruxelles Bruxelles Belgique Laboratory for Functional Investigation Faculty of Veterinary Medicine University of Liége Liège Belgium Laboratory for Functional Investigation Faculty of Veterinary Medicine University of Liège Liège Belgium Laboratory of Pharmacology Catholic University of Louvain Brussels Laboratoire de Physiologie Animale FUNDP Namur Laboratory of animal Physiology Facultés universitaires Notre-Dame de la Paix Namur Belgium Biomedical Engineering Laboratory Swiss Federal Institute of Technology Lausanne Switzerland RUCA University of Antwerp Antwerp Belgium Laboratory of Physiology Laboratory of Toxicology University of Leuven Leuven Belgium Laboratoire de Pharmacologie Université Catholique de Louvain Bruxelles Belgium Istituto di Fisiologia Umana Università degli Studi Siena Dipartimento di Farmacologia Università degli Studi di Milano Milano Istituto di Fisiologia Umana Università di Perugia Perugia Dipartimento di Medicina Sperimentale Università di Reggio Calabria Laboratorio di Fisiologia Umana Catanzaro Istituto di Fisiologia umana Palermo Dipartimento di Scienze Fisiologiche Università di Firenze Firenze Dipartimento Biologia Cellulare e Molecolare (sez. Fisiologia e Biofisica) Università di Perugia Perugia Istituto di Fisiologia Umana Univer

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THE CALLING(SM) NETWORK - A GLOBAL WIRELESS COMMUNICATION-SYSTEM

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INTERnational JOURNAL OF SATELLITE COMMUNICATIONS 1994年第1期12卷 45-61页

作者： TUCK, EF PATTERSON, DP STUART, JR LAWRENCE, MH Calling Communications Corporation. 1900 West Garvey Ave South. Suite 200 West Covina CA 91790 USA. Chairman of Calling Communications Corporation. He is also the Managing Director of Kinship Venture Management Inc. the general partner of Kinship Partners 11 and a General Partner of Boundary the general partner of The Boundary Fund. As a venture capitalist he has founded or participated in founding several telecommunications companies including Calling Communications Corporation Magellan Systems Corporation manufactures of Global Positioning System receivers Applied Digital Access manufacturer of DS-3 test access and network performance monitoring equipment Endgate Technology Corporation specialists in satellite phased array antennas and Poynting Systems Corporation. now a division of Reliance Corporation manufacturers of fibre optic transport equipment. He was a founder of Kebby Microwave Corporation where he invented the first solid-state. frequency-modulated commercial microwave link system. The company was acquired by ITT Corporation where he rose to the position of V.P. and Technical Director of ITT North America Telecommunications Inc. Subsequently he was V.P. of Marketing and Engineering at American Telecommunications Inc. (ATC). He was founding Director of American Telecom Inc. a joint venture between ATC and Fujitsu and has served on more than 20 boards of directors including those of three public companies. He has authored articles on microwave engineering and telephone signalling and was a contributor to Reference Data For Radio Engineers. He is a graduate of the University of Missouri at Rolla where he was later awarded an honorary Professional degree and serves on its Academy of Electrical Engineering. Mr Tuck is a Senior Member of the IEEE a Fellow of the Institution of Engineers (Australia) a Professional Member of the AIAA and a registered professional engineer in three states. More than 25 years of experience in the telecommunications industry where he has been responsibl

There is a very large demand for basic telephone service in developing nations, and remote parts of industrialized nations, which cannot be met by conventional wireline and cellular systems. This is the world's largest unserved market. We describe a system which uses recent advances in active phased arrays, fast-packet switching technology, adaptive routeing, and light spacecraft technology, in part based on the work of the Jet Propulsion Laboratory and on recently-declassified work done on the Strategic Defense Initiative, to make it possible to address this market with a global telephone network based on a large low-Earth-orbit constellation of identical satellites. A telephone utility can use such a network to provide the same modern basic and enhanced telephone services offered by telephone utilities in the urban centres of fully-industrialized nations. Economies of scale permit capital and operating costs per subscriber low enough to provide a service to all subscribers, regardless of location, at prices comparable to the same services in urban areas of industrialized nations, while generating operating profits great enough to attract the capital needed for its construction. The bandwidth needed to support the capacity needed to gain these economies of scale requires that the system use K(alpha)-band frequencies. This choice of frequencies places unusual constraints on the network design, and in particular forces the use of a large number of satellites. Global demand for basic and enhanced telephone service is great enough to support at least three networks of the size described herein. The volume of advanced components, and services such as launch services, required to construct and replace these networks is sufficient to propel certain industries to market leadership positions in the early 21st Century.

关键词： LOW EARTH ORBIT SATELLITE COMMUNICATIONS FAST PACKET SWITCHING EARTH FIXED CELLS ADAPTIVE ROUTEING LIGHT spaceCRAFT K(A) BAND PHASED-ARRAY ANTENNAS

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A CAPABLE, AFFORDABLE 21ST-CENTURY DESTROYER

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NAVAL ENGINEERS JOURNAL 1993年第3期105卷 213-223页

作者： LEVEDAHL, WJ The Author:is the assistant for technology in the Machinery Research and Development Dictorate of the Naval Surface Warfare Center Carderock Division Annapolis Md. After a 50-mission tour as a P-51 Mustang pilot he received a B.S. in general engineering from MIT and was elected to Sigma Xi. He subsequently studied gas turbines and aeronautical engineering at the Federal Polytechnic Institute in Zurich Switzerland and as a National Science Foundation fellow he received his Doktor Ingenieur at the Technical University of Aachen Germany. He conducted basic research in combustion at the National Bureau of Standards and was head of advanced core design at the Knolls Atomic Power Laboratory (General Electric) during the 1950s when the currently used reactor cores were designed. He then joined Combustion Engineering as chief project physicist in the design of central-station reactors. Subsequently he became manager of research at Martin Marietta involved largely in direct energy conversion for outer space. In 1970 he joined the Annapolis Laboratory to establish the Superconductive Electric Propulsion Program and in 1974 assumed his present position. He has received the Distinguished Flying Cross the Meritorious Civilian Service Award 10 patents and is the author of many technical papers.

A simple tumblehome hull of 4500LT lightship displacement carries 1200LT of military payload 6000NMi at 20kts with inherently-low acoustic, infrared, and radar signatures, and with superior seakeeping, without seawater ballast. Its two intercooled, recuperated turbines replace the seven simple-cycle engines of a comparably-armed conventional destroyer and consume 59% less fuel;both ships share a 30kt sustained speed at 80% power. Use of stern flaps permits carrving more fuel;range is doubled to 12,000 NMi. Two removable, prealigned and pretested steerable propulsor modules are attached to the stern after construction and are pierside replaceable without drydocking;each includes a steerable pod aligned to the water inflow. Contrarotating tractor propellers are driven by a pretested integrated capsule which comprises seals, thrust bearings, contrarotating ringring bicoupled epicyclic gears, and an alternating-current electric motor. A streamlined strut connects each pod rigidlv to a vertical steerable barrel which contains the individually-replaceable propulsor auxiliaries. Two power modules are removable and are mounted in the helicopter hangar. Each module comprises a 26,400 HP intercooled regenerated gas turbine, a 3 Mw ship-service generator, and a propulsion generator with a second high-voltage winding for electrothermal guns.

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Interactive video. Innovative episodes for enhancing education

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Computer Applications in Engineering Education 1992年第1期1卷 97-97页

作者： Bailey, H.J. Thornton, N.E. Institute for Interactive Technologies Bloomsburg University of Pennsylvania Bloomsburg Pennsylvania 17815 Dr. Harold J. Bailey:currently is Director of the Institute for Interactive Technologies at Bloomsburg University Bloomsburg Pennsylvania. He also serves as Coordinator of the University's Master's program in Instructional Technology. His educational background includes a PhD in Curriculum and Instruction from Penn State University an M Ed. in Mathematics Education from the same institution and a BS in Mathematics from Albright College. He is the author of several books on microcomputer applications and has received the Distinguished Teaching Award at the university. During the past seven years Dr. Bailey has been actively involved with the design development production and evaluation of interactive videodisc projects. He has managed many interactive video projects and conducts interactive video workshops for interested professionals. As a frequent speaker at national and international conferences Dr. Bailey possesses broad practical experience in the teaching and development of interactive video instructional systems. Dr. Nancy E. Thornton:is Assistant Director for Research and Development of the Institute for Interactive Technologies at Bloomsburg University Bloomsburg Pennsylvania. Her educational background includes a PhD in Educational Psychology from Arizona State University an MS in Speech and Hearing from Washington University and a BA in Psychology and Speech from the College of St. Catherine. She teaches introductory and advanced instructional design and authoring systems in the Master of Science program in Instructional Technology. Her specialty areas include instructional design learning theory and classroom applications of interactive technologies.

This article provides information about the actual and potential uses of interactive video in instruction in an effort to motivate educators to consider using this technology to improve teaching. The authors (1) describe the continuing evolution of computer-based educational tools; (2) examine instances when an interactive videodisc provides viable instructional solutions to otherwise very difficult or impossible tasks; (3) discuss several models for delivering instruction to accommodate different learning styles and teaching methods; and (4) provide a framework for designing lessons systematically based on proven methods.

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THE NEW ROAD - OCEAN AND NAVAL ENGINEERING IN THE 1990S

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NAVAL ENGINEERS JOURNAL 1991年第1期103卷 75-78页

作者： BALES, SML Susan Bales is the science advisor to the chief of naval operations and the assistant director for science and technology of the CNO Executive Panel. She is on assignment from the Office of Naval Research where she holds the position of assistant director for program support and special programs. Previously she was head of the Ocean Environment Group at David Taylor Research Center. Among her fields of technical expertise are radio-electronic battle management/space and electronic combat naval oceanography coastal dynamics ship engineering hydrodynamics technology wargaming climatology and the Arctic. Since joining the CNO's staff in 1987 Ms. Bales has participated in a number of strategic long-range planning efforts including the 1990 Defense Science Board Summer Study. She has been active in international exchange agreements coordinating the 1987 Labrador Extreme Waves Experiment (LEWEX) and chairing a NATO Research Study Group. She has lectured at the Massachusetts Institute of Technology Webb Institute of Naval Architecture the NATO ASW SACLANT Centre the Admiralty Marine Technology Establishment and the Royal Netherlands Meteorological Institute. Active in a number of professional societies Ms. Bales has served as vice president of the American Society of Naval Engineers (ASNE) and chaired the Naval Engineers Journal Committee. Her research has been published in more than 50 papers articles and reports both here and abroad. She has received the Navy Meritorious Civilian Service Medal was named the 1988 National Capital Senior Engineer of the Year by the D.C. Council of Engineering and Architectural Societies and was elected to membership in the COSMOS Club in 1989. She was married to the late Nathan K. Bales and resides in Myersville Md.

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INTEGRATED SHIP MACHINERY SYSTEMS REVISITED

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NAVAL ENGINEERS JOURNAL 1989年第3期101卷 93-101页

作者： LEVEDAHL, WJ The author:is the assistant for technology in the Propulsion and Auxiliary Systems Department of the David Taylor Research Center (DTRC) Annapolis Md. After a World War II combat tour as a 15th AAF P-51 fighter pilot he received a B.S. in general engineering from MIT and was elected to Sigma Xi. He subsequently studied gas turbines and aeronautical engineering at ETH in Zurich and as a National Science Foundation Fellow he received his Doktor Ingenieur in applied thermodynamics at the TH Aachen Germany. He conducted basic research in combustion at the National Bureau of Standards and was head of advanced submarine reactor core design at the Knolls Atomic Power Laboratory (General Electric) during the 1950s. He then joined Combustion Engineering as chief project physicist in the design of central-station reactors. Subsequently he become manager of research at Martin Marietta involved largely in direct energy conversion for outer space. In 1970 he joined DTRC to establish the Superconductive Electric Propulsion Program and in 1974 assumed his present position. He has received the Distinguished Flying Cross and the Meritorious Civilian Service Award. Dr. Levedahl joined ASNE in 1978.

In the late 1980s, the world of U.S. Navy surface combatants is confronted with three new needs: to reduce ship signatures by factors of 10 to 1000; to provide ten-gigawatt power pulses to new combat systems; and to reduce the high cost of hull, mechanical and electrical (HM&E) systems by taking advantage of newly-available technology. These needs have caused an active response of the surface-ship community to the many apparent benefits of integrated machinery systems. The acoustic signature problem accelerated interest in integrated machinery systems. A substantial reduction in noise at cruise speeds requires the elimination of propeller cavitation and requires reductions in machinery noise. The use of contrarotating tractor propellers driven by bicoupled epicyclic gears and an alternating-current electric motor in a pod which faces directly into the flow stream is potentially capable of such performance; even better would be a contrarotating superconductive electric motor in the pod. No other concept seems even remotely competitive with these. The major reductions in installed power, fuel consumption, and reduced displacement reported in the April 1980 Naval Engineers Journal are retained. Large reductions in infrared signature and further reductions in fuel consumption are provided by intercooled recuperated gas turbines. An integrated electric propulsion system provides the opportunity to temporarily “borrow” power from the propulsion system and transform it into pulses for advanced combat systems. Not only the power of the turbines, but also the kinetic energy of the ship are available.

关键词： Ship Equipment

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COMPUTER-AIDED ENGINEERING AND SHOCK ANALYSIS FOR THE FOUNDATION OF A MODULARIZED VERTICAL LAUNCHING SYSTEM

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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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