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MPCS - THE MANUFACTURING PROCESS-control system

AT&T TECHNICAL JOURNAL 1986年第4期65卷 35-45页

作者： DUNIETZ, IS HSU, JLC MCEACHERN, MT STOCKING, JH SWARTZ, MA TROMBLY, RM The authors Irwin S. Dunietz John L.C. Hsu Michael T. McEachern James H. Stocking Mark A. Swartz andRodney M. Tromblyare responsible for design and development of the Manufacturing Process Control System. Mr. Dunietz joined AT&T in 1980. He is a member of the technical staff in the Manufacturing Information Automation department at AT&T Engineering Research Center Princeton New Jersey. He received an A.B. in mathematics from Cornell University and an M.S.E. in computer science from Princeton University. Mr. Hsu who joined AT&T in 1970 is a department head in the Manufacturing Information Automation department at the Engineering Research Center. He received an M.S. in electrical engineering from the University of Missouri. Mr. McEachern joined AT&T in 1962 and is a supervisor in the 5ESS™ Line Unit Manufacturing department at AT&T Technologies in Oklahoma City Oklahoma. He is responsible for the manufacturing process control center in Oklahoma City which provides computerized support for all circuit pack manufacturing. Mr. Stocking who joined AT&T in 1975 is a supervisor in the Manufacturing Information Automation department at the Engineering Research Center. He received a B.S. in chemical engineering from Rensselaer Polytechnic Institute and a Ph.D. in chemical engineering from the University of California Berkeley. Mr. Swartz joined AT&T in 1980 and is a member of the technical staff in the Manufacturing Information Automation department at the Engineering Research Center. He received an A.B. in computer science from Cornell University and an M.S. in computer science from Rutgers—The State University. Mr. Trombly who joined AT&T in 19 78 is an assistant manager at the AT&T Merrimack Valley Works in Massachusetts. Previously he was a supervisor at the Engineering Research Center. He holds a B.S. in computers and systems engineering and an M.S.E.E. from Rensselaer Polytechnic Institute.

The central challenge of all manufacturing is making products to the right standards and delivering them at the right time. AT&T is upgrading its corporate and factory resource planning systems to improve control of day-to-day manufacturing. The Manufacturing Process control system (MPCS), developed at the AT&T engineering Research Center (ERC), provides this support. MPCS connects the shop floor with production scheduling, accounting, product data archive, and engineering support systems.

关键词： PRODUCTION control

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AN EXPERIMENTAL EXPERT WEAPON DIRECTION system

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NAVAL ENGINEERS JOURNAL 1986年第3期98卷 24-34页

作者： STEWART, RL OUSBORNE, DR Robert L. Stewartis a mathematician on the senior staff of The Johns Hopkins University Applied Physics Laboratory and is currently principal investigator in two research projects addressing distributed decision processes and expert systems. He has a master's degree in mathematics from the University of Utah is a member of Phi Beta Kappa and is a doctoral candidate conducting human problem-solving research at The Johns Hopkins University. Douglas R. Ousbomeis an engineer on the senior staff of The Johns Hopkins University Applied Physics Laboratory and is the assistant group supervisor of the weapon direction group within the Fleet Systems Department. He is a specialist in weapon control system engineering design development and evaluation. He is coprincipal investigator in a research project addressing the applicability of expert systems techniques in weapon control environments.

A research project that addresses the efficacy of expert systems techniques for improving effectiveness of missile employments from Navy surface ships is discussed in terms of general weapon systems operations, special requirements of real-time tactical situations, and a functioning experimental expert weapon direction system. An overview of the current weapon direction system and associated missile employment operation is provided as a basis for discussing timing and coordination requirements. The development and test of an experimental expert support system using sumulated missile engagements is reviewed in terms of language structures, incorporation of expert procedural knowledge, and system modeling. Preliminary results from testing the experimental expert system at the engagement system land based test site in Laurel, Maryland are reported, and future plans are summarized.

关键词： NAVAL WARFARE

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MASTER ORDNANCE REPAIR APPLIED - STANDARD ITEM 009-67

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NAVAL ENGINEERS JOURNAL 1986年第3期98卷 35-42页

作者： STIMSON, WA MARSH, MT UTTICH, RM William A. Stimsonreceived his B.S. degree in mathematics from the University of Texas at El Paso in 1964 and his M.S. degree in engineering from the University of Santa Clara in 1971. He served in the U.S. Army Artillery during the Korean Conflict and subsequently was employed at IBM Huntsville Alabama until 1968 where he worked in the design of automatic control systems of the Saturn vehicle. From 1968 until 1971 he was employed at Ames Research Center Moffett Field in the design of nonlinear control systems for sounding rockets and pencil-shaped spacecraft. Following this Mr. Stimson worked at Hewlett Packard Sunnyvale California as a test engineer in automatic test systems. Since 1973 Mr. Stimson has been employed at the Naval Ship Weapon Systems Engineering Station Port Hueneme. He was a ship qualification trials project supervisor for many years and is now serving as master ordnance repair deputy program manager. Mr. Stimson is a member of the American Society of Naval Engineers and is program chairman of the Channel Islands Section. Cdr. Michael T. Marsh USNreceived a B.S. in mathematics from the University of Nebraska and was commissioned via the NESEP program in 1970. He holds an M.S. in computer science from the U.S. Navy Postgraduate School and an MBA from the State University of New York. Cdr. Marsh has served in the weapons department of USSFrancis Hammond (FF-1067) and of USSJohn S. McCain (DDG-36). He was weapons officer aboard USSSampson (DDG-10). As an engineering duty officer Cdr. Marsh was the technical design officer for PMS-399 at the FFG-7 Class Combat System Test Center from 1978 to 1982. He is presently combat system officer at SupShip Jacksonville and has been active in the MOR program since its inception. Cdr. Marsh is also the vice chairman of the Jacksonville Section of ASNE. LCdr. Richard M. Uttich USNholds B.S. and M.S. degrees in mechanical engineering from Stanford University. He enlisted in the Navy in 1965 serving as an electronics technician aboard USSNereus (A

The 600-ship United States Navy offers private shipyards an unprecedented opportunity for overhaul of surface combatants with complex combat systems. Recognizing the new challenge associated with the overhaul of high technology combat systems in the private sector, the Navy in 1983 established the master ordnance repair (MOR) program. This program, a joint effort of the Naval Sea systems Command (NAVSEA) and the Shipbuilders Council of America (SCA), was designed to identify and qualify those companies and private shipyards technically capable of managing combat systems work and conducting combat system testing. Standard Item 009–67 describes the role of the MOR company in combat system overhaul. It defines terms that are important to understanding the item itself, and imposes upon the prime contractor an obligation to utilize the MOR subcontractor in a managerial capacity. Specific tasks are assigned to the MOR company in planning, production, and testing. Finally, this standard item describes to the Navy planner how to estimate the size of the MOR team appropriate to the work package, a feature that will ensure that combat system bids are tailored to a specific availability.

关键词： WARSHIPS

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Automatic Refueling Platform system and Automatic control Rod Drive Remote Handling system for BWR Nuclear Power Plants

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IFAC Proceedings Volumes 1985年第16期18卷 363-368页

作者： K. Hara M. Kurabayashi T. Nakahara Power Generation Computer system Department Fuchu Works Toshiba Corporation Japan Control & Electrical Engineering Department Nuclear Energy Group Toshiba corporation Japan

This paper introduces some of the mechanized and automated systems already applied to nuclear power plants in service, and describes the resulting significant contributions to shorter outage time, reduced personnel exposure, and improved plant reliability. The systems discussed are an automatic refueling system and an automatic remote handling system for control rod drive (CRD).

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A New Approach to Optimal control of Supercritical Once-Through Steam Generator

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IFAC Proceedings Volumes 1984年第2期17卷 2169-2174页

作者： T. Katayama T. Ohki T. Inoue S. Nakayama Department of Applied Mathematics and Physics faculty of Engineering kyoto University Kyoto 606 Japan Control System Design Department Boiler plant Division lshikawajima-Harima Heavy Industries Company Limited Tokyo 135 Japan

This paper presents a new approach to the design of an optimal servo-type controller for a supercritical once-through steam generator under variable pressure operation. To derive a state-space model of the thermal power plant, a linear multivariable input-output model is fitted to the open loop data obtained from the actual plant. The applicability of state-space models obtained are checked on the basis of the real step response characteristics of the plant. Under the assumption that the time-varying desired demands are previewable, a new controller with state feedback plus integral and preview actions is developed by extending the method due to Tomizuka and Rosenthal(1979). It is shown by digital simulation that the preview of future demands is effective for improving the performance of the plant.

关键词： Power plant control Steam generators Boilers Identification Multivariable systems Optimal control LQI control Preview action

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DESIGN FOR NEW-JERSEY, IOWA, AND DES-MOINES MODERNIZATION

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NAVAL ENGINEERS JOURNAL 1984年第3期96卷 25-38页

作者： SIMS, PJ EDWARDS, JR DICKEY, RL SHULL, HS Philip J. Sims:graduated from Webb Institute in 1971 and went to work for the Advance Design Branch of the Naval Ship Engineering Center. He was part of the FFG-7 design team in 1972. The 1973–75 years were spent developing automated early-stage aircraft carrier design procedures and performing carrier design trade-off work in support of the CVV design. He returned to school in 1976 for a masters at M.I. T. The 1977–80 period was spent updating the Navy's destroyer-cruiser early-stage design procedures and performing studies for the CGN-42 reserve FFX and DDX (later DDG 51) projects. Also during this period he was team leader on concept formulation (CONFORM) studies of new ships such as a heavy combatant and a low detectability ship. From 1981 to early 1983 Mr. Sims was Design Integration Manager for the BB-62 and Ship Design Manager for the BB-61 and CA-134. He is presently principal naval architect for the FFX study and also works on the NA TO frigate effort. James F. Edwards Sr:.is the Technical Director Ship Analytics Inc. Washington D.C. Operations and was the Ship Design Manager for the battleship USSNew Jerseyprior to his departure from NAVSEA in August 1983. He joined the U.S. Navy Reserves in 1954 and served on active duty from 1957 to 1960. From 1961 to 1963 he worked for McLaughlin Research Corporation as a section head in the drafting department. From 1963 to 1966 he worked for the Vitro Corporation of America in the Terrier (surface missile systems) Department. In 1966 he participated in the contract design of the first shipboard integrated digital ASW Command and Control system while working for the Stanwick Corporation. In 1967 Mr. Edwards accepted a position at NAVSHIPS in the Combat System Integration Division. In 1974 he transferred to what is currently NAVSEA's Hull Design Division. In 1980 Mr. Edwards was designated as the Battleship and Heavy Cruiser General Arrangements Task Leader and subsequently served as the Hull Task Group Manager the Ship Configuration Control Manager and fina

In reactivating the battleship New Jersey , the Navy faced three major problems. The baseline data on the ship was not readily available or reliable, a new generation cruise missile armament was proposed, and the ship delivery schedule was very tight. After doing a feasibility study, system design engineers were taken onboard the mothballed ship to resolve the design problems. Being on the ship allowed an intensive effort and immediate reference to the actual ship configuration. The tools used to control this effort were a ship check plan, a ship check form and the master arrangement drawing. Simultaneously with the design effort, a repair scoping effort was conducted. The design evolution and solutions to the major problems are described. The results of the New Jersey effort are shown with sample documentation, the ship characteristics and the downstream design effort. The Iowa was the next ship to be modernized. The top level requirements were the same as New Jersey's but new problems were encountered. More options were investigated which diverted attention from the basic effort. A fundamental difference was the Iowa had not had a 1968 reactivation as the New Jersey had, so items that were repair and reactivation on the New Jersey in 1968 had to be part of the Iowa modernization. A major influence on the Iowa design process was that a complete set of specifications for a private yard bid had to be developed. The next effort was to install the same New Jersey modernization payload on a Des Moines class heavy cruiser. Heavy cruisers are large ships but significantly smaller than battleships and much closer to their naval architectural limits of weight and center of gravity. They have much less topside area than the battleships, and the new payload was very topside space consuming. The cruisers are also much more restricted in internal volume. Two feasibility studies were conducted. One resolved volume problems but approached the weight and center of gravity limits.

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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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Stabilization of Large-scale Bilinear systems via the ε-Coupling Approach

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IFAC Proceedings Volumes 1983年第12期16卷 315-322页

作者： S.G. Tzafestas K. Anagnostou Control System Laboratory Electrical Engineering Department University of Patras Patras Greece

The stabilization problem of a class of ε-coupled large-scale bilinear systems via state-variable feedback is studied. Using Lyapunov theory the stabilizing control is shown to be of the quadratic-state-feedback type. The basic result of the paper is that the stabilizing controller of the overall ε-coupled bilinear system can be implemented as a linear combination of the stabilizing controllers of the two decoupled subsystems to which the system reduces when ε=0, and an ε-dependent term which is due to the ε-coupling that actually exists between them when ε≠0. The results are first given for strictly bilinear systems, and are then extended to bilinear systems of complete form. Both the single-parameter and multiparameter coupling cases are considered for scalar as well as vectorial controls. Three nontrivial examples illustrate the applicability of the theory.

关键词： ε-coupling method large-scale systems bilinear systems stabilization Lyapunov method quadratic state feedback multiparameter coupled systems

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Two Studies on a Computer Aided Train Schedule Adjustment

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IFAC Proceedings Volumes 1983年第4期16卷 67-74页

作者： A. Satoh Y. Ohkawa H. Ikeda Control Engineering Laboratory Railway Technical Research Institute Japanese National Railway Tokyo Japan Department of Information System Japanese National Railway Tokyo Japan

Trains are usually operated according to a train schedule which is made previously. But once train traffic falls into disorder by some disturbances such as earthquake or car trouble, the train schedule has to beadjusted in order to restore a delayed train to the train schedule. This is generally called train schedule adjustment. Train schedule adjustment must give not only feasible solutions, but also optimal ones for restoration of train operation. This paper treats two independent subjects concerning train schedule adjustment. One is a new method to judge speedily whether a solution for train schedule adjustment is feasible or not in computer aided train traffic control system. The other is a computer aided algorithm which gives an optimal solution for train schedule adjustment based on changing the order of trains.

关键词： Computer applications computer programming dynamic programming network analysers optimal control traffic control train control transportation control trees

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The Quality control system of Sintering Plant at Kashima Steel Works

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IFAC Proceedings Volumes 1983年第15期16卷 347-355页

作者： o. Arai A. Yamamoto T. Joko K. Inada S. Yumoto Instrumentation and Control Engineering Section Kashima Steel Works Sumitomo Metal Industries Ltd. Ibaraki 314 Japan Iron-making Control Section Kashima Steel Works Sumitomo Metal Industries Ltd. Ibaraki 314 Japan Instrumentation and Control Technology Department Central Research Laboratory Sumitomo Metal Industries Ltd. Hyogo 660 Japan System Planning Department Kahima Steel Works Sumitomo Metal Industries Ltd. Ibaraki 314 Japan

In recent years, the quality control of sintered ore has become more and more important for stable operation of modern blast furnaces where the sinter ratio of feedstock material exceeds 50%. The quality control system of sintering plant has been developed by SMI (Sumitomo Metal Industries, Ltd.), which consists of the measurement systems of free carbon and FeO content in raw materials, the control system of particle distribution of crushed coke and the FeO content in sintered ore. It's well known that the conventional batch sampling method has such limitations for quality control of sintered ore as its poor sampling frequency and time lag before result is acquired. In the past several years, SMI has developed the sensors and control system of sintered ore with satisfactory results. Our research in those several years, the following results are attained. (1) There is close relation between indices of ROI (Reduction and Disintegration Index) and TI (Tumbler Index) of sintered products and the ratio of smaller particle size of crushed coke than 1 mm. (2) FeO content of products is controllable by regulating the coke ratio in relation to the FeD content of raw materials and products. (3) FeO content can be controlled more accurately by regulating the coke ratio in which the effect of free carbon content of raw materials is corrected. From those facts, the following measurement systems are developed. (1) Continuous FeO measurement meter for raw materials ----- The principle of FeD measurement meter consists in inductance change of detecting coil by the FeD content of raw materials. (2) Continuous FeO measurement meter for sintered products. (3) Particle distribution measurement system of crushed coke ----- This system uses an optical pattern recognition method. (4) Free carbon content measurement system of raw materials ----- This system estimates the total carbon consumption by calculating the data of flue gas volume and components. The recent operation has obtained th

关键词： Sintering plant RDI TI Magnetite Meter Sintered Products Raw Materials Coke Breeze Particle Size Distribution Free carbon content Quality control

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