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STUdY IN METALLIC-INTErLAYEr-rEINFOrCEd GLASS CLOTH/EPOXY MECHANICAL JOINT.

Fifth International Conference on Composite materials, ICCM-V.

作者： Hwang, d.G. Wu, S.K. Hsu, S.E. Chung Shan Inst of Science & Technology Materials R&D Cent Lung-Tan Taiwan Chung Shan Inst of Science & Technology Materials R&D Cent Lung-Tan Taiwan

ISBN: (纸本)0873390008

The effort of strengthening the mechanically bolted joint efficiency by adding metal interlayer in a composite laminate has been made. The employed metal interlayer was 0. 2mm thick, perforated and sandblast-finished SAE 1086 steel sheet. Style 1581 glass cloth and Ciba Geigy LY 556 epoxy resin were molded to form the laminate. The present metal interlayers were colaminated with glass epoxy layers at three different volume fraction levels to form double-lap, single-hole specimens. A data basis was experimentally determined to increase the reliance for the application of steel interlayered reinforcement.

关键词： JOINTS

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Composition dependence of Magnetic Shielding Properties for Amorphous ribbons (FeNi)78Mo4B17Si

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MrS Online Proceedings Library 1985年第1期58卷 169-172页

作者： Huang, der-ray dow, Wen-Huu Yao, Pei-Chih Hsu, Shu-En Materials R&D Center Chung Shan Institute of Science and Technology Lungtan Taiwan R.O.C.

Amorphous ribbons (FeNi)78Mo4Bi7Si, made by melt-spinning technique were prepared as magnetic shielding materials. Cylindrical shields (~0.05mm thick) were fabricated by wrapping ribbons on 20cm long pyrex tubes with 45mm diameter. dC and AC (60Hz, 400Hz, 800Hz, 1 kHz) magnetic shielding data were obtained by following the modified ASTM (A698-74) procedure. For dC magnetic fields, Ni-rich shields showed maximum shielding values at lower applied fields (0.10e~10e), while Fe-rich shields showed maximum shielding values at higher applied fields (1~5 0e). For AC magnetic fields, the magnetic fields, the magnetic shielding effectiveness was also influenced by skin effect at shields’ surfaces. By comparing the data to calculations from shielding theory, there is about 8% magnetic shielding effectiveness induced by skin effect at 1 kHz.

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rECENT AdVANCES IN THE SEAKEEPING ASSESSMENT OF SHIPS

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NAVAL ENGINEErS JOUrNAL 1985年第4期97卷 224-233页

作者： MCCrEIGHT, KK STAHL, rG Kathryn K. McCreight:is a member of the Ship Dynamics Division at the David W. Taylor Naval Ship Research and Development Center. She has worked on a range of projects including some related to modeling the dynamic characteristics of SWATH ships assessing the seaworthiness of ships and analyzing the relationship between hullform characteristics and seaworthiness of SWATH designs. She received a B.A. in mathematics from Wells College in 1968 and an M.S. in hydromechanics from George Washington University in 1979. Ralph G. Stahl:received his B.S. degree in physics from Drexel University in Philadelphia. Together with the curriculum associated student training program he has been associated with the David W. Taylor Naval Ship R&D Center (DTNSRDC) and its predecessor organizations throughout his professional career. For the past five years he has participated in the development of SWATH ship seakeeping performance assessment technology which encompasses the development of initial design concepts and characterizing corresponding dynamic qualities.

Three factors affect the operability of a ship in a seaway: the motion characteristics of the ship, the environment, and the mission requirements. A method is presented which predicts the operability of a ship at specific geographical locations. Analysis of operability is carried out using transfer functions which represent the motion characteristics of a ship, wave data for the North Atlantic and for the North Pacific, and limiting motion criteria for a specific mission. From these three factors, operability indices are developed. Operability indices include the percent of time of operation (PTO) and the limiting significant wave height (LSWH). Contours which describe bands of constant values of the percent of time of operation for a mission are determined. In developing the indices and resultant contours, operability in the presence of each of a large number of wave spectra is weighted according to probability of occurrence of that wave spectrum. The probability of occurrence of wave spectra for the winter and for the entire year for 57 points in the North Atlantic and 21 points in the North Pacific is used for various combinations of significant wave height and spectral modal period. Composite wave data for the general North Atlantic or general North Pacific also are utilized. The operability for mobility criteria of six hullforms ranging in displacement from approximately 3,000 to 9,000 tons is compared. Both monohull and SWATH configurations are considered. Comparison of operability as a function of significant wave height, as a function of displacement, and as a function of speed is made using winter and annual wave statistics for the general North Atlantic. Some results also are presented for the general North Pacific. Operability contours for the North Atlantic are presented for the hullforms. Tabulated limiting significant wave heights for various operating conditions are presented. The effect of systematic variations in performance criteria on performance

关键词： SHIPS

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APPLICATION OF VArIABLE SPEEd CONSTANT FrEQUENCY GENErATOrS TO PrOPULSION-dErIVEd SHIP SErVICE

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NAVAL ENGINEErS JOUrNAL 1985年第4期97卷 296-305页

作者： rOBEY, HN STEVENS, HO PAGE, KT Henry N. Robey:obtained his bachelor's of engineering science degree and his master's degree in electrical engineering from Johns Hopkins University in 1972 and 1978 respectively. He has been employed by the David Taylor Naval Ship R&D Center (DTNSRDC) since 1972 working in the area of electric machinery and electrical system development. He is presently the head of the Machinery Systems Engineering Branch at DTNSRDC. He is a member of IEEE. Howard O. Stevens:obtained his bachelor's and master's degrees in physics by 1967 from Carnegie Institute of Technology and the University of Maryland respectively. He has been employed by DTNSRDC since 1962 in various capacities having been a member of the Project Office for Electric Propulsion head of the Electric Propulsion and Machinery Systems Branch and is now head of the Electrical Systems Division. He is a member of ASNE and recipient of the 1983 Solberg Award. Kenneth T. Page:obtained his bachelor's degree in mechanical engineering in 1969 from Virginia Polytechnic Institute. He has been employed since 1969 at DTNSRDC working in the area of evaluation of shipboard machinery systems. He is currently a senior project engineer in the Electric Propulsion and Machinery Systems Branch. He is a member of ASME ASNE and a licensed professional engineer in the State of Maryland.

The higher specific fuel consumption of present Navy gas turbine generators, when compared to main propulsion gas turbines, has led to the investigation of propulsion-derived ship service electrical power. Variations in propulsion engine speed require that a generator provide constant frequency with a variable input shaft speed. A fuel use analysis has been conducted of the application of a variable speed constant frequency (VSCF) generator to a four gas turbine twin shaft destroyer. Other considerations are the quality of ship service power with the introduction of power electronics to the generating system and the impact of the new components on system weight, volume, and survivability. Propulsion-derived ship service utilizing VSCF generators offers to provide substantial benefit to Navy combatant ships through the application of proven technology.

关键词： NAVAL VESSELS

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SIGNIFICANT ISSUES FOr THE FUTUrE OF PrOdUCT INNOVATION

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JOUrNAL OF PrOdUCT INNOVATION MANAGEMENT 1984年第1期1卷 56-66页

作者： LITTLE, B University of Chile Technion—Israel Institute of Technology Case Western Reserve University McMaster University Advanced Development Consumer Products Kodak Apparatus Division Eastman Kodak Company The University of Michigan University of Virginia Victoria University of Wellington Rutgers University McKinsey & Company Inc. Corporate R&D General Electric Company

What's happening in the world of product innovation? What are the tough issues that managers are facing? And what's going to happen in the remaining years of this decade? In this article, several members of the Editorial Board of The Journal of Product Innovation Management offer their ideas about where the important problems lie. This is the fodder for a good round table discussion and through the medium of this journal we'll engage in such a discussion in this and a subsequent issue.

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HUMAN-FACTOrS CONSIdErATIONS APPLIEd TO OPErATIONS OF THE FFG-8 ANd LAMPS MK III

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NAVAL ENGINEErS JOUrNAL 1984年第3期96卷 191-199页

作者： BAITIS, AE APPLEBEE, Tr MCNAMArA, TM A. Erich Baitis: a native of Germany came to the David W. Taylor Naval Ship R&D Center in 1957 as a cooperative student/trainee and received his B.S. degree in physics from Virginia Polytechnic Institute. As a 32-year-old naval architect in 1971 he received both the Vietnam Honor Service Medal and the Navy's Meritorious Civilian Service Award for his eight months as liaison with the Vietnamese Navy's ferro-cement program. As head of the Seakeeping and Stabilization Group of the Surface Ship Dynamics Branch his work has led to the development of a new standard Ship Motion Computer Program and the application of ship motions to ship habitability operability and survivability problems. A major area of this work has been the ship-aircraft interface which is particularly sensitive to ship motions wind and other environmental factors. He is a member of the American Society of Naval Engineers and was awarded the Solberg Award for 1982 “in recognition of significant engineering research and development contributions in the area of improved helicopter operations from a ship in a seaway.” Terrence A. Applebee:is currently a naval architect at the David W. Taylor Naval Ship R&D Center in the Surface Ship Dynamics Branch. he came to the Center after earning a B.S. degree in ocean engineering from Florida Institute of Technology in 1973. Since that time he has worked in the areas of seakeeping performance evaluation ship-helicopter interfacing and human factor considerations. He is a member of the American Society of Naval Engineers and the Society of Naval Architects and Marine Engineers. Thomas M. McNamara:is an employee of the John Hopkins University Applied Physics Laboratory in the ocean data acquisition program. From 1979 to 1983 he worked at David W. Taylor Naval Ship R&D Center in the Surface Ship Dynamics Branch. His expertise has focused on the development of computer models for human factor evaluations as well as motion stabilization systems. He has participated in the development of advanced stabilizat

The FFG 7/LAMPS MK III Operator Guidance Manual (OGM) was developed for all FFG-7 class frigates which are not fin stabilized or are operating with the fins off. The OGM was developed to assis the ship operators of the FFG-7 class in choosing ship speed and heading combinations which will minimize ship motion-related problems during various phases of the LAMPS deployment. Crew safety and performance were major concerns in the development of the OGM. This paper reviews the effect of human factors on ship operations during helicopter recovery, maintenance, and transit to and from the hangar.

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NAVAL ArCHITECTUrE FOr COMBATANTS, A technology SUrVEY

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NAVAL ENGINEErS JOUrNAL 1984年第5期96卷 47-64页

作者： KEANE, rG SANdBErG, WC Robert G. Keane Jr:.is presently director Ship Survivability Subgroup of the Naval Sea Systems Command. He received a B.E.S. in mechanical engineering from the Johns Hopkins University a M.E. in mechanical engineering from the Stevens Institute of Technology and a M.S.E. in naval architecture and marine engineering from the University of Michigan. He began his career with the U.S. Navy in 1967 in the Seaworthiness Branch of the David W. Taylor Naval Ship Research and Development Center (DTNSRDC). Since 1968 he has held a number of naval architectural positions in NA VSEA and in 1981 he was appointed to the Federal Senior Executive Service. Prior to assuming his present position in 1984 he was the director of NAVSEA's Naval Architecture Subgroup and the assistant for transition of ship engineering technology. A member of ASNE since 1969 he is also a member of ASE SNAME and SAWE. William C. Sandberg:is currently head Hydromechanics Technology Branch in the Hull Form Design and Performance Division (SEA 55W3) Naval Sea Systems Command. He received his B.S. degree in physics from Boston College his M.S. degree in naval architecture and marine engineering from Massachusetts Institute of Technology and at present is a Ph.D. candidate in physics at The Catholic University of America. He began his career with the U.S. Navy in 1968 when he joined the Submarine Section of the Hull Form and Fluid Dynamics Branch at the former Naval Ship Engineering Center and worked in submarine hydrodynamics until becoming hydrodynamics task leader for the FFG-7 ship design. He has since been task leader for the DG AEGIS and MCM ship designs and has served as the technical director of NA VSEA's ship hydrodynamics and mathematical sciences R&D programs. Mr. Sandberg is a member of ASNE APS ASE and SNAME and currently is serving as chairman of the SNAME Flow Studies Panel and as a member of SNAME's Hydrodynamics Committee.

Naval architects perform a number of very important roles in the design of naval ships. To address the many technologies associated with these myriad roles would be an enormous undertaking. The authors, therefore, chose to concentrate their efforts on an overview of technology in support of the naval architect's important role of designing the hull forms and appendages for future combatants. Thus, the objectives of this paper are to review existing and emerging ship hydrodynamics technologies which are expanding the spectrum of hull design options and their associated ship performance characteristics and to clearly demonstrate that there are many opportunities for further advancements in ship hydrodynamics technologies that will significantly aid the nation's naval architects in contributing their best to our future combatants.

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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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FIBEr OPTICS FOr SHIPBOArd rAdAr dATA-TrANSMISSION

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NAVAL ENGINEErS JOUrNAL 1983年第1期95卷 50-57页

作者： dIXON, TP is Manager of Technology Development at ITT Cilfillan in Van Nuys California. He has been with ITT for 22 years during which time he was responsible for the development of a variety of Electro-Optical Systems primarily in the areas of Optical Communications Laser Radar Passive Optical Tracking and Night Vision. Previously he was with Technicolor Motion Picture Corporation in Hollywood for 8 years where he was responsible for two Electro-Optical R&D Laboratories one fcr the improvement of color motion pictures for theatrical release and the other for improvements in films made for television. He received a BE (EE) Degree from the University of Southern California in 1950 and completed graduate work at UCLA and George Washington University. He is a member of Eta Kappa Nu Tau Beta Pi Phi Kappa Phi SPIE and IEEE.

Optional Fiber Optic data Links have been installed on four different types of Shipboard radars and an IFF System at a Navy landbased test site. These data links carry all of the signals both directions between the radars and the Combat Information Center. The use of fiber optics solved some very real problems at the site and, at the same time, provided an excellent opportunity to evaluate the performance and reliability of the data transmission systems prior to making commitments for shipboard installations. Subsequently, detailed specifications were generated for shipboard hardware, and qualification test programs are underway. All elements of the data links must pass qualification testing or be approved as non-standard parts before they can be installed in an operational shipboard system. This paper will describe the fiberoptic systems that are operational at the landbased test site, and will detail some of the tradeoffs that have been made for shipboard installations.

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FIrE SAFE materials FOr NAVY SHIPS

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NAVAL ENGINEErS JOUrNAL 1982年第5期94卷 65-74页

作者： VENTrIGLIO, dr Dr. Danute R. Ventriglio:is a graduate of the City College of New York from which she received a Bachelor's degree in Chemical Engineering in 1963. Upon graduation she joined the David Taylor Naval Ship R&D Center where she held various positions as research chemical engineer as energy R&D coordinator and as technical staff. She pursued graduate studies in Chemical Engineering at the Catholic University of America receiving her Master's Degree in 1970 and the Ph.D. in 1975. Her doctoral dissertation was on “Binary Diffusivity in Liquids by the Time-Correlation Function Method” based on the statistical mechanical theory of transport processes. Presently she is on the technical staff of the DTNSRDC Ship Materials Engineering Department which is a major NAVY materials group conducting research and development programs on a wide variety of metallic non-metallic and composite materials for surface ships submarines high speed craft and other advanced vehicles. Dr. Ventriglio is the author of various R&D reports and technical papers. She is knowledgeable in several languages including Lithuanian Portuguese French and Spanish. She is a member of the American Institute of Chemical Engineers U.S. Naval Academy Sigma Xi Club and DTNSRDC Severn Technical Society.

Adequate fire protection of the Fleet is a very difficult task, demanding numerous and diverse materials options, ranging from materials of limited flammability to the high temperature “noncombustible” types. To improve shipboard fire safety, certain categories of fire susceptible materials may be upgraded through the incorporation of fire retardants. In many cases, however, new and more fire resistant elastomers, plastics, fibers, resins, composites, and ablative materials, must be developed and adapted for marine applictions. New materials embodying innovating technologies are needed for more fire tolerant structures and machinery components, fire barriers, protective insulation, nonflaming and intumescent coatings, and fire safe materials for a wide variety of internal ship uses. To achieve these goals at affordable cost to the NAVY, the materials r&d community faces considerable challenges. In this paper, an overview is given of ongoing NAVY programs addressing shipboard fire protection. Existing fire resistant materials requirements and specifications are reviewed. Current usage of fire resistant materials on ships is high-lighted, and new technological opportunities are discussed for future materials developments.

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