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THE EFFECTS OF TRANSOM BEAM ON THE SEAKEEPING QUALITIES OF LARGE SURFACE SHIPS

NAVAL ENGINEERS JOURNAL 1990年第6期102卷 44-54页

作者： KISS, TK USN Graduated from the United States Naval Academy from which he received his BS degree in naval architecture in 1988. In 1989 he received a MS in naval architecture and marine engineering from the Massachusetts Institute of Technology. He is currently a student at the U.S. Navy's nuclear power plant prototype site in Ballston Spa New York. Upon completion of nuclear power training he will serve in the surface warfare community. He is a member of ASNE SNAME and Tau Beta Pi.

This paper presents the results of an investigation into the effects of transom beam on the head seas motions and resistance in waves of large surface ships of the frigate/destroyer type. A series of transom stern models was tested in the 380foot towing tank at the U.S. Naval Academy in Annapolis, Maryland. The transom stern series consisted of three models of the same forebody shape, displacement, length, and prismatic coefficient with different beams at the transom. Each of the variations represented typical surface combatants of the frigate/destroyer family. Long crested head sea tests were run in regular and irregular waves over a range of four speeds for each model. Heave, pitch, resistance, and bow acceleration were recorded for each test run. The measured data were faired and expanded to a prototype ship scale and compared with analytical predictions. The analytical predictions were obtained by using the U.S. Navy's Ship Motion Program (SMP).

关键词： Ships

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THE DETERMINATION OF SHIP LOADS AND MOTIONS - A RECOMMENDED engineering APPROACH - REPLY

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NAVAL ENGINEERS JOURNAL 1990年第4期102卷 143-144页

作者： BUCKLEY, WH The Author:graduated from Massachusetts Institute of Technology from which he received his BS degree in aeronautical engineering in 1948 and his BS degree in business administration in 1949. He was employed for 20 years by the Bell Aerospace Company as a structural engineer. During this time he was responsible for structural design loads for the X-22A VTOL research airplane SKMR-1 the Navy's first large air cushion vehicle and the SES-100B surface effect ship. After joining the Structures Department of the David Taylor Research Center in 1971 he conducted hydrofoil ship loads research and later supported the PHM procurement program. In 1978 he initiated a loads research program for displacement ships with emphasis on casualty analysis statistical analyses of non-linear random processes extreme wave characteristics and most recently climatic and extreme spectra for use in determining long-term structural loadings. In 1982 he received a master's degree in ocean and marine engineering from The George Washington University. He is a member of ASNE SNAME and Sigma Xi and is currently chairman of the SNAME Hull Loading Panel (HS-1).

This paper outlines the essential features of a recommended engineering approach to load and motion determination, required developments, progress to date and remaining key developments. An engineering approach is defined as one in which all significant cause and effect relationships have been identified and quantified so that the resulting design criteria and methods can play a deterministic role in the give and take of ship design. In defining the essential features of such an approach consideration is given to (a) the random nature of the seaway, (b) linear and nonlinear characteristics of the seaway and ship responses to it, and (c) the use of resulting loads and stresses in the assessment of asbuilt static strength, fatigue and flaw growth degradation of static strength, and energy absorption under seaway impact loadings. Progress to date in these areas is overviewed and recent developments summarized which serve to demonstrate that the rather demanding elements of an engineering approach are attainable. Because of the importance of seaway characteristics, primary attention has been given to providing an effective engineering definition of world wide wave climates. In addition, because of the importance of nonlinear seaways and ship responses, a method of characterizing the nonlinearity of measured random data has been developed. With these advances in hand, remaining critical developments are identified and approaches to their resolution suggested.

关键词： Ships

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Simulation of electromagnetic radiation and scattering using a finite difference-time domain technique

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Computer Applications in engineering Education 1992年第1期1卷 45-45页

作者： Li, K. Tassoudji, M.A. Shin, R.T. Kong, J.A. Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics Massachusetts Institute of Technology Cambridge Massachusetts 02139 Kevin Li:received his BS and SM degrees (1990) in Electrical Engineering and EE (Electrical Engineer's) degree (1991) from the Massachusetts Institute of Technology where he is currently pursuing his PhD in Electrical Engineering. Since 1990 he has been the recipient of a United States Air Force Laboratory Graduate Fellowship. His main research interests include electromagnetic scattering radar cross section prediction and numerical techniques. Mr. Li is a member of Tau Beta Pi and a student member of IEEE. M. Ali Tassoudji:received his BS (1987) and MS (1989) degrees in Electrical Engineering from the University of Michigan Ann Arbor. Since 1989 he has been a research assistant at the Massachusetts Institute of Technology where he is currently working towards his PhD in Electrical Engineering. His research interests include electromagnetic scattering and propagation modeling of microwave circuits and numerical techniques. Mr. Tassoudji is a member of IEEE and Eta Kappa Nu. Robert T. Shin:received his SB (1977) SM (1980) and PhD (1984) in Electrical Engineering from the Massachusetts Institute of Technology. Since 1984 he has been a member of the Air Defense Techniques Group at MIT Lincoln Laboratory as a Research Staff member and as a Senior Staff member from 1989. His research interests are in the areas of electromagnetic wave scattering and propagation theoretical model development and data interpretation for microwave remote sensing. He is the coauthor ofTheory of Microwave Remote Sensing(Wiley 1985). Dr. Shin is a member of The Electromagnetics Academy IEEE American Geophysical Union Tau Beta Pi Eta Kappa Nu and Commission F of the International Union of Radio Science. Since 1987 he has served on the Editorial Board of theJournal of Electromagnetic Waves and Applications(JEWA). Jin Au Kong:is Professor of Electrical Enginee

The finite difference-time domain (FD-TD) technique is applied to the solution of Maxwell's equations. A computer program, which can be used to simulate and study numerous electromagnetic phenomena, is developed and implemented on an IBM 386 compatible personal computer. The FD-TD technique is a useful tool for students in electromagnetics. The technique is flexible and can be applied to many basic EM scattering and radiation problems. Because field solutions are found as a function of time, visualization of the propagation of the EM fields is possible. The FD-TD technique is implemented for a two-dimensional rectangular grid in conjunction with a second-order absorbing boundary condition. Both E- and H-field polarizations are analyzed. Finite objects consisting of dielectric, magnetic and conducting materials, and perfectly conducting infinite ground planes are modeled. Plane wave and line current sources are implemented. In addition to the capability of animating the propagation of the EM fields, radiation and scattering patterns can be generated.

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HULL GIRDER STRUCTURAL DESIGN - CASE FOR NEW LOADING CONDITIONS FOR EXTREME WAVES

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NAVAL ENGINEERS JOURNAL 1978年第1期90卷 95-105页

作者： BUCKLEY, WH The Authorgraduated from Massachusetts Institute of Technology from which he received his BS degree in Aeronautical Engineering in 1948 and his BS degree in Business Administration in 1949. After graduating in 1948. he was employed for 20 years by the Bell Aerospace Company as a Structural Engineer. During this time he was responsible for structural design loads for the X—22A VTOL research airplane SKMR—1 the Navy's first large Air Cushion Vehicle: and the SES—100B Surface Effect Ship. In 1971 he joined the Structures Department David W. Taylor Naval Ship Research & Development Center as Task Principal for Hydrofoil Ship Structural Research and since 1973 has been Head of the Load Criteria Group Surface Ship Division. In addition from 1965 until 1971 he was a member of the Ship Research Committee of the Maritime Transportation Research Board where he initiated a study resulting in Ship Structure Committee Report 240: “Load Criteria for Ship Structural Design.” Mr. Buckley is a member of SNAME and Sigma Xi and in 1977 was the recipient of the U.S. Navy Department Meritorious Civilian Service Award.

Hall girder failures and major damage of commercial shipping, which have resulted from operating in storm wave conditions daring the past several years, have been examined to determine if design for conventional, statically balanced “hogging” and “sagging” conditions Is entirely adequate. A synopsis of the buildup of wind and wave conditions has been presented for five casualties in American waters so as to characterize the seaway conditions in which critical bending moments have been encountered. The characteristics of storm waves have been investigated initially by reviewing wave data obtained in the Gulf of Mexico during Hurricane CAMTLLE. These wave data, superimposed on MARINER Model Slamming Data, illustrate the likelihood of severe “slamming” loads occurring under extreme storm conditions. from these studies it is concluded that wave steepness is a critical parameter from a dynamic loading point of view, and that large waves of extreme steepness can exist in major storms. Based upon these findings, as well as observed storm damage to hull girders, It is recommended that two additional loading cases be considered which provide for 1) impulsive bottom or bow flare slamming loads acting in combination with ordinary wave loadings, and 2) impulsive weatherdeck loads in breaking waves acting in combination with ordinary wave loadings.

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Human systems integration and advanced technology in engineering department workload and manpower reduction

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NAVAL ENGINEERS JOURNAL 2003年第1期115卷 57-65页

作者： Lively, KA Seman, AJ Kirkpatrick, M KENNETH A. LIVELY graduated from the University of Colorado with a BS in applied mathematics and an MS in mathematics in 1976 and from the Massachusetts Institute of Technology with an MS in electrical engineering and the degree ocean engineer in naval architecture and marine engineering in 1984. He retired from the U.S. Navy in 1989 after 23 years of service. Assignments included electrical officer on the USS Constellation (CV 64) project engineer for the DDG 51 machinery control system (NAVSEA) and DDG 51 Technical Director (NAVSEA). He was vice president of the PDI Division of Bird-Johnson Company from July 1989 to November 1998 where he managed various gas turbine and machinery controls related development projects. He joined Anteon Corporation's Systems Engineering Group as senior controls engineer in December 1998 where he provided technical support to the integrated power systems program (NAVSEA PMS 510) and managed the Office of Naval Research Afloat Laboratory. DR. MARK KIRKPATRICK is currently an independent consultant in human factors and work-load/manning analysis and modeling. He holds a Ph.D. degree in experimental psychology from The Ohio State University and has 34 years of experience in applied human factors. From 1982 through 2000 Dr. Kirkpatrick served as the senior vice president of Carlow International. Prior to joining Carlow in 1982 Dr. Kirkpatrick served as a member of the technical staff at North American Rockwell's Missiles Division and as a project director and vice president for Essex Corporation. His areas of expertise include workload simulation task analysis operator-in-the-loop simulation human performance experimentation statistical analysis and human factors T&E. He has directed and/or participated in human factors projects for the U.S. Navy U.S. Army NASA Department of Transportation the U.S. Nuclear Regulatory Commission and private industry. ANTHONY J. SEMAN III is the technical manager for the reduced ship's crew by virtual presence (RSVP) advanced technology d

Aboard current ships, such as the DDG 51, engineering control and damage control activities are manpower intensive. It is anticipated that, for future combatants, the workload demand arising from operation of systems under conditions of normal steaming and during casualty response will need to be markedly reduced via automated monitoring, autonomous control, and other technology initiatives. Current DDG 51 class ships can be considered as a manpower baseline and under Condition III typical engineering control involves seven to eight watchstanders at manned stations in the Central Control Station, the engine rooms and other machinery spaces. In contrast to this manning level, initiatives such as DD 21 and the integrated engineering plant (IEP) envision a partnership between the operator and the automation system, with more and more of the operator's functions being shifted to the automation system as manning levels decrease. This paper describes some human systems integration studies of workload demand reduction and, consequently, manning reduction that can be achieved due to application of several advanced technology concepts. Advanced system concept studies in relation to workload demand are described and reviewed including. Piecemeal applications of diverse automation and remote control technology concepts to selected high driver tasks in current DDG 51 activities. Development of the reduced ship's crew by virtual presence system that will provide automated monitoring and display to operators of machinery health, compartment conditions, and personnel health. The IEP envisions the machinery control system as a provider of resources that are used by various consumers around the ship. Resource needs and consumer priorities are at all times dependent upon the ship's current mission and the availability of equipment pawnbrokers.

关键词： Naval warfare

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Side launching of DDG-7

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Naval Engineers Journal 1963年第n 1期v 75卷 p179-182页

作者： Sample, W.H. U.S. Navy THE AUTHOR is a graduate of the United States Naval Academy Class of 1949. In 1945 he received a degree in Naval Engineering from Massachusetts Institute of Technology upon completion of the postgraduate course in Naval Construction and Engineering. Duty in the Production and Planning Department of Boston Naval Shipyard preceded a tour with Supervisor of Shipbuilding Bay City Michigan. He is currently serving as Repair Officer aboard the USS MARKAB (AR23)

First of DDG 2 class, guided missile destroyers to enter water, USS Henry B. Wilson (DDG7), was launched at Defoe Shipbldg Co, Mich;ship is about 440 ft long oa and has normal displacement of about 4000 tons;4 h-p boilers will furnish superheated steam sufficient to deliver 35,000 hp to each of 2 shafts;top speed will be above 30 knots;calculations and plotting of path of ship as launched are discussed;16 of photographs made of launching are shown, and conclusions drawn from film and pictures reported.

关键词： Ships

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SYSTEM engineering STATE-OF-ART EQUAL TO MODERN WARSHIP DESIGN

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NAVAL ENGINEERS JOURNAL 1978年第2期90卷 130-136页

作者： ECKHART, M USN (RET.) The Authoris currently Chief Scientist in the Autonetics Marine Systems Division Rockwell International concentrating in Digital Simulation Applications in System Engineering. A graduate of the U. S. Naval Academy in 1945 he served in various surface assignments until 1950. Subsequent thereto after being designated an Engineering Duty Officer (ED) he had Type Commander Staff Laboratory ESO and Naval Shipyard assignments until 1962 when he became the Miltary Chairman Electrical Science at the U. S. Naval Academy. In 1965 he became the Head Electrical/Electronics Design Branch Bureau of Ships remaining in this assignment until 1967 when he assumed the responsibilities of Director Ship Concept Design Division Naval Ship Engineering Center. Upon retiring from the U. S. Naval Service in 1970 he joined Rockewell International and the following year became the Manager of the Integration Programs Group involved in Model—Based Systems Analysis EM Effectiveness Submarine Control and Ship Data Miltiplexing. His education includes a BS degree from the U. S. Naval Academy a BS degree in Electrical Engineering received from Massachusetts Institute of Technology in 1949 and a MS degree in Electrical Engineering received from The George Washington University in 1967. A former ASNE Council Member he has been active in ASNE at both the National and Local Section levels since 1967.

The general systems engineering state—of—the—art has not been equal to the functional diversity of modern multimission warships, nor to the more complex system relationships that are characteristically involved in their design. Resultant dependence upon qualitative assessments of higher level relationships in warship definition and design has been and is a critical impediment to the Navy's corporate purposes, both in prosecuting its vital rebuilding campaign and in dealing with the technological pace of naval warfare. A design methodology development, first reported on ASNE Day 74, has provided the basis for removing this impediment. The threshold criterion of system engineering, quantification, and correlation of total system design objectives, can be satisfied for warship definition and design. Further, the basic elements of an exploitive system engineering practice have been developed sufficiently to confirm their validity. This work is interpreted in terms of the system engineering structure that can be expected to emerge; first, because it can be done, and second, because its payoffs are so urgently needed by the Navy.

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GE's Open Collaboration Model

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RESEARCH-technology MANAGEMENT 2012年第4期55卷 28-31页

作者： Idelchik, Michael Kogan, Sam 1: is vice president of advanced technologies for GE Global Research the centralized research and development organization of General Electric. In that role Michael oversees the companys longest-range highest-impact research endeavors including major programs in nanotechnology energy conversion molecular medicine advanced propulsion organic electronics and sustainable energy. Michael began his career at GE in 1978 as an engineer for aircraft engines. Michael received a BS in mechanical engineering from Columbia University and a Masters degree from the Massachusetts Institute of Technology. He holds 12 U.S. patents. 2: has more than 30 years of experience in research and development and plays a key role in leading operations at GEN3 Partners where he serves as president and Chief Operating Officer and also leads a number of strategic business and technology developments. Sam is a strategic and technical advisor to a number of venture capital funds and start-ups. He has a PhD in material science and an MS in applied physics. Sam is the author of more than 50 articles and 17 patents and is a certified TRIZ and Master Black Belt Six-Sigma specialist.

This article explores General Electric's experience with open collaboration as part of its research and development efforts in markets adjacent to the company's core businesses. In recent years, GE has reached out beyond its network of global R&D centers to collaborate with new and different kinds of external partners, including start-ups and researchers, to develop new technologies and bring the resulting new products to scaled markets faster, including in clean tech and healthcare innovation. Open collaboration has become a strong platform for growth in adjacencies at GE, and the company has applied lessons learned from the experience of working with outside partners to transform the way innovation is done internally.

关键词： Open collaboration Open innovation Clean tech Healthcare Adjacencies

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ARCTIC TRAFFICABILITY PROGRAM - A REVIEW

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NAVAL ENGINEERS JOURNAL 1984年第3期96卷 169-175页

作者： VOELKER, R GLEN, IF SEIBOLD, F BAYLY, I Richard Voelker:is Vice President of ARCTEC Incorporated a firm specializing in cold regions technology. He has been responsible for the management of thePolarClass Traffic-ability Program since its inception and annually participates in the field data collection in the Arctic. His prior experience includes positions with the U.S. Coast Guard in the icebreaker design project the Military Sealift Command and at Newport News Shipbuilding. He is a graduate of N. Y.S. Maritime College and has a MS degree from the University of Michigan. I.F. Glen:received his professional degrees in naval architecture from the Royal Naval Engineering College Manadon Plymouth and RN College Greenwich London entering the Royal Corps of Naval Constructors in 1967. After serving as a Constructor Lieutenant in the Royal Navy's Far East Fleet for a short period he joined the Polaris submarine project team in Bath England in 1968. In 1971 he was seconded to the Canadian Department of National Defense in Ottawa as a Constructor Lieutenant Commander under NATO exchange arrangements where he had responsibilities initially for conventional submarines and latterly for computer aided conceptual design. He ventured to Bath England in 1974 and joined Forward Design Group. In 1975 he took a position as a civilian engineer in the Canadian Defense Department and was Head of Hull Systems Engineering from 1977 to 1979. He joined ARCTEC CANADA LIMITED in 1980 and in addition to managing ice model testing projects and full scale trials has specialized in structural response of ships to ice impact. He headed ARCTEC's Kanata Laboratory from 1981 to 1983 when he was promoted to president. Frederick Seibold:is a research program manager with the Maritime Administration's Office of Advanced Ship Development and Technology. He is responsible for the marine science program which includes research in the areas of ship powering structures and propeller performance and Arctic technology. Mr. Seibold has been employed by Mar Ad since 1961 having hel

This paper describes a multiyear program to make an operational assessment on the feasibility of a year-round Arctic marine transportation system to serve Alaska. Specifically, the three objectives were to: collect meteorological and ice data along potential marine routes; instrument the hull and propulsion machinery to improve design critera for ice-worthy ships; and demonstrate that ships can operate in midwinter Alaskan Arctic ice conditions. The U.S. Coast Guard's Polar class icebreakers were used to make the operational assessment by annually extending the route northward and by operating throughout the winter season. This paper reviews some of the operational and technical achievements to date, as well as plans for future Arctic deployments.

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RESEARCH AND DEVELOPMENT, THE BUREAU OF SHIPS, AND THE FUTURE

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Naval Engineers Journal 1962年第2期74.0卷 275-280页

作者： SPONSLER, G.C. THE AUTHOR is currently Chief Scientist for Research and Development in the Bureau of Ships. He received his B.S. degree in Electrical Engineering from Princeton in 1949 was a Sayre Fellow and received his M.A. degree in 1951. Following this he took his Doctorate in Applied Physics and was a Coffin Fellow. Following this he joined the Lincoln Laboratories at the Massachusetts Institute of Technology until 1956 when he became a Scientific Liaison Officer for the Office of Naval Research in London England. He later worked for the Hoffmann Electronics Corporation coming to his present job in 1960.

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