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Report: Automating Manual Storeroom Zones in a Factory

AT&T Technical Journal 1988年第2期67卷 87-94页

作者： Pulat, B. Mustafa Hewett, Alan P. W. B. Mustafa Pulat:is a senior engineer in the Material Handling Engineering Department of AT&T Network Systems at the AT&T Oklahoma City Works in Oklahoma City Oklahoma. Mr. Pulat joined AT&T in 1985 and is involved in system development modeling and just-in-time deliveries. He has a B.Sc. and M.Sc. in industrial engineering from the Middle East Technical University in Ankara Turkey and a Ph.D. in industrial engineering from North Carolina State University.Alan P. W. Hewettis a member of technical staff in the Manufacturing Engineering Systems Development Department of AT&T Bell Laboratories in Columbus Ohio. He joined the company in 1978 and designs and develops software for the Material Operations Velocity System (MOVES) a system that automates material handling in AT&T factories. He has a B.A. in chemistry from Kalamazoo College a Ph.D. in chemistry from Yale University and has done postdoctoral work in both chemistry and computer science at Harvard University.

Moving, storing, and controlling material efficiently is one of the most challenging problems of manufacturing. In the last twenty years, several different technologies were developed for this purpose, including the automated storage and retrieval system (AS/RS), which featured advancements in real‐time control of machines by computers. Today's AS/RS makes total material‐handling system integration a reality. This paper describes the experience of the AT&T Oklahoma City Works with such a system. © 1988 AT&T Technical Journal

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PERFORMANCE OF THE SHINPADS SERIAL DATA BUS FOR FRIGATE-CLASS SHIPS

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NAVAL ENGINEERS JOURNAL 1988年第4期100卷 191-199页

作者： KAYE, AR STARCHUK, GJ A. Roger Kaye:is a professor in the Department of Systems and Computer Engineering at Carleton University Ottawa Canada. His research interests are in computer-communication networks and expert systems for their management. He spent many years in both industrial and government research laboratories prior to joining Carleton. He holds the Ph.D. and M.Eng. degrees from Carleton and the B.Sc. (Eng.) from the University of London England. Gary J. Starchuk:received the B.Eng. degree in engineering management at the Royal Military College of Canada in 1973 the M.A.Sc. degree in management sciences from the University of Waterloo in 1979 and the M.Sc. degree in information and system science from Carleton University in 1987. He holds the rank of lieutenant commander in the Canadian Forces and is currently serving as a project manager in a major project.

The paper presents performance results for the SHINPADS serial data bus operating in the environment of a modern, frigate-class ship using a combination of point-to-point links for certain major applications systems and the shared, SHINPADS bus for others. The traffic model used is representative of experience in the design of new ships of this type. It is shown that the bus has adequate performance for the expected traffic load. In addition it is shown that, as traffic increases, delay problems will show up in the application processor environment before there is any significant degradation of the performance of the bus. The value of the provision of several classes of priority on the bus is also investigated.

关键词： DATA TRANSMISSION EQUIPMENT

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AIR-CUSHION LANDING CRAFT NAVIGATION

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NAVAL ENGINEERS JOURNAL 1985年第4期97卷 248-260页

作者： GRAHAM, HR KIM, JC BAND, EGU FOWLER, AW Herbert R. Graham:received his degrees of B.S. in 1951 and M.S. in 1958 in aeronautical engineering from the Massachusetts Institute of Technology and the California Institute of Technology respectively. He also attended the Harvard Graduate School of Business Administration. He is presently a task manager at TRW Inc. McLean Virginia responsible for landing craft air cushion (LCAC) engineering support. Since joining TRW in 1967 he has had several technical project management and system engineering responsibilities in amphibious ships transportation and energy. He was responsible for the preliminary engineering design and cost estimates for tracked air cushion vehicles (TACVs). He has been active in several professional societies including ASNE and served as vice-chairman Los Angeles Section American Institute of Aeronautics and Astronautics. John C. Kim:received his degrees of B.S. in electrical engineering Tri-State University 1959 M.S. in electrical engineering Michigan State University 1960 and Ph.D. in electrical engineering Michigan State University. He is presently a senior staff engineer with TRW Inc. McLean Virginia where his technical experience has included communications system engineering and navigation system analysis. Since joining TRW in 1969 he has held numerous positions including section head project manager and department manager. His previous employment includes E-Systems/Melpar Division and Honeywell. Dr. Kim has been active in the IEEE Washington Chapter activities which included secretary vice-chairman and chairman of Systems Science and Cybernetics Group. Edward G.U. Band:received a B.S. degree in mechnical engineering in 1946 and a D.I.C in aeronautical engineering in 1947 at the City and Guilds College of London University. In 1951 he received an M.S. degree from Stevens Institute of Technology in fluid dynamics. After a career in the aircraft industry in England Canada and the U.S.A. he spent several years teaching in Chile and at Webb Institute of Naval Archi

Air cushion vehicles (ACVs) have operated successfully on commercial routes for about twenty years. The routes are normally quite short; the craft are equipped with radar and radio navigation aids and maintain continuous contact with their terminals. Navigation of these craft, therefore, does not present any unusual difficulty. The introduction of air cushion vehicles into military service, however, can present a very different picture, especially when external navigation aids are not available and the craft must navigate by dead reckoning. This paper considers the problems involved when navigating a high-speed air cushion vehicle by dead reckoning in conditions of poor visibility. A method is presented to assess the ACV's navigational capability under these circumstances. A figure of merit is used to determine the sensitivity of factors which affect navigation such as the range of visibility, point-to-point distance, speed, turning radius and accuracy of onboard equipment. The method provides simplistic but adequate answers and can be used effectively to compare the-capability and cost of alternative navigation concepts.

关键词： AIR CUSHION VEHICLES

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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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ON CHARACTERIZING THE INTER-DEPARTURE PROCESS OF A SERVER

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PERFORMANCE EVALUATION 1982年第4期2卷 251-255页

作者： TRIPATHI, SK AGRAWALA, AK System Design and Analysis Group Department of Computer Science University of Maryland College Park MD 20742 U.S.A.

A technique for computing the inter-departure time distribution for single server queues is presented. The method is applicable for both the steady state and the transient characterizations. Examples of its use in several situations are presented. An explicit expression for the interdeparture time distribution of a steady state G/M/1 queue is obtained.

关键词： Departure Process Single Server Queue Virtual Waiting Time Sojourn Time Inter-Departure Distribution Characterization of Transient Inter-Departure Distribution

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On updating buffer allocation

On updating buffer allocation

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computer Network Performance Symposium 1982

作者： Thareja, Ashok K. Tripathi, Satish K. Upton, Richard A. System Design and Analysis Group Department of Computer Science University of Maryland College ParkMD20742 United States

ISBN: (纸本)0897910699

Most of the analysis of buffer sharing schemes has been aimed at obtaining the optimal operational parameters under stationary load situations. It is well known that in most operating environments the traffic load changes. In this paper, we address the problem of updating buffer allocation as the traffic load at a network node changes. We investigate the behavior of a complete partitioning buffer sharing scheme to gain insight into the dependency of the throughput upon system parameters. The summary of the analysis is presented in the form of a heuristic. The heuristic is shown to perform reasonably well under two different types of stress tests. © 1982 ACM.

关键词： Network architecture

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computer AIDS FOR SHIP DESIGN, INTEGRATION AND CONTROL

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

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

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

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CENTML CONTROL system TRAINING THROUGH STA TIC AND DYNAMIC SIMULATION

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Naval Engineers Journal 1980年第2期92卷 196-206页

作者： HALL, EDWIN E. MOSS, DONALD G. NORRIS, CLIFFORD S. PETERSON, HAROLD D. Mr. Edwin E. Hall received his Bachelor's degree in Electronics from Oklahoma City University. He also is a certified College-Level Instructor in the state of Florida and has done graduate work in Computer Science at the University of Florida. As the Technical Publications and Training Manager Simulation and Control Systems Department. General Electric Company Daytona Beach Fla. he currently is responsible for the costing. planning performance scheduling and timely completion of the Department's Technical Manuals and Technical Training Programs. These Training and Manual contracts cover Ship Systems Programs. Simulation Programs. and Communications Programs for the Armed Services and commercial customers. Mr. Hall has over twenty-years experience as a Technical Writer and Instructor and for the past seventeen years has been at the General Electric Company's Daytona Beach Facility. His experience ranges from teaching Basic Electronics and Radar Circuitry as a civilian instructor for the U.S. Army to writing Manuals Proposals Reports Specifications and Brochures for General Electric's product lines. Mr. Donald G. MOSS is a graduate of Kansas State University from which he received both his B.S. degree in Business Administration and his M.S. degree in Electrical Engineering. He is presently a Senior Systems Engineer for Control Systems in the Simulation and Control Systems Department at the General Electric Company's Daytona Beach Facility. He has been employed by General Electric for 23 years — the first seven as an Engineer and Program Manager on the Fire Control Systems for the Fleet Ballistics Missile Program the next six managing the design of control and checkout equipment on the APOLLO Program and the last ten years working on control equipment for the machinery plants of new Navy ships. Over the span of years at General Electric he has worked on propulsion control for the DD-963 propulsion electric plant and auxiliary control for the FFG-7: propulsion boiler burner electric auxiliary and car

Dynamic Simulation is defined as the hardware and software required to present to the student operator visual and audible cues and responses that are the same as those encountered when operating the Control Consoles aborad ship. This type of simulation is considered essential to the development of operator skills for critical tasks. Less critical tasks can be practiced using static simulation devices. This paper discusses the utilization of these types of training devices to train Navy crews. An overview of the Machinery Control systems of the FFG 7 and AO 177 Class ships is discussed to provide an understanding of state‐of‐the‐art equipment development. The training programs for these two ship Classes are then reviewed to show how simulation devices are currently used by the Training Community, and this is followed by a brief discussion of the additional benefits that also are derived. © 1980 by the American Society of Naval Engineers, Inc.

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IDENTIFICATION OF A CLASS OF TIME-VARIABLE LINEAR-systemS VIA ITS OUTPUT COVARIANCE FUNCTION

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INTERNATIONAL JOURNAL OF systemS science 1978年第3期9卷 259-264页

作者： ROOTENBERG, J GHOZATI, SA System Research Group Department of Computer Science Queens College of the City University of New York Flushing NY 11367 United States

The main concern of this paper is to determine the state-space representation of a class of linear time-variable, periodic system, such that when excited by stationary white noise it results in a random process with prescribed covariance function. It is shown that by using a proper transformation on the state covariance matrix of the system it is possible to find a new matrix which has periodicity properties and satisfies a periodic matrix Riceati differential equation; therefore, the time interval of interest, on which the matrix Riceati equation must be solved using previous approaches, will collapse into one period.

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GENERATION OF A CLASS OF NONSTATIONARY RANDOM PROCESSES

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INTERNATIONAL JOURNAL OF systemS science 1978年第8期9卷 935-947页

作者： ROOTENBERG, J GHOZATI, SA System Research Group Department of Computer Science The City University of New York Queens College Flushing NY 11367 United States

The main concern of this paper is the determination of state-space equations of a linear periodic system with no direct connection between input and output that realizes a class of proscribed output covariance functions.A transformed state covariance matrix satisfying a matrix Riccati differential equation with periodic coefficients is derived from the given output covariance of the system. By use of a suitable transformation, the time interval of interest can be collapsed to one period. Thus the Riccati differential equation need be solved only over one period.

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