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SHIPBOARD DAMAGED STABILITY ASSESSMENT - THE FLOODING CASUALTY control SOFTWARE

NAVAL ENGINEERS JOURNAL 1993年第3期105卷 152-166页

作者： ZAHN, PB ROSBOROUGH, J CARLSTROM, R Peter B. Zahn:is a section chief in the Naval Architecture Department at Advanced Marine Enterprises. He is responsible for software development and special trials support. He has led the Flooding Casualty Control Software (FCCS) development effort since joining AME in 1989. He is also responsible for the material handling strikedown and stowage (MHS&S) software development program as well as special trials support for the ACVLAP and T-AGOS 19 programs. Prior to joining AME Mr. Zahn spent nine years with various companies of the ARCTEC Group. His experience includes field trials in venues from the Caribbean to the Bering Sea as well as model tests and engineering design and development efforts. Mr. Zahn received his B.S. in naval architecture and marine engineering from Webb Institute in 1980 and has published various papers on pollution prevention offshore systems and icebreaker design and performance. He is a member of ASNE and SNAME. John Rosborough:has been a naval architect for the Naval Sea Systems Command (NavSea) for the past 15 years. He is currently assigned to the Hydrodynamics Division with responsibility for aircraft carrier stability evaluations and as a task leader for computer-aided ship design development. In the Stability Division he was previously responsible for stability analyses on various amphibious ships SWATHs and foreign ships. He manages the upgrade and augmentation of SHCP at NavSea and is the Navy's technical point of contact for evaluating shipboard stability software and transitioning technology to the fleet. Mr. Rosborough received his B.S. in naval architecture and marine engineering from the University of Michigan in 1977. He is a member of USNI and the Association of Scientists and Engineers at NavSea. Richard Carlstrom:is a naval architect with Advanced Marine Enterprises. He has been responsible for software development in support of a variety of major programs including FCCS and SHCP and is a specialist in stability evaluations for complex ships such as CVs CVNs

The Flooding Casualty control Software (FCCS) was developed under the auspices of the Naval Sea systems Command (NavSea) and is currently being deployed on a variety of ships in the neets of both the U.S. Navy and the U.S. Coast Guard. The primary objective of FCCS is to enable damage control personnel to identify critical stability conditions, especially when related to the loss of reserve buoyancy due to battle damage and the destabilizing effects of large quantities of firefighting water, in a timely manner. FCCS was initially deploved in 1990. It utilizes the standard algorithms of the Ship Hull Characteristics Program (SHCP). The user interface was designed to allow quick familiarity for shipboard users, primarily the damage control assistant (DCA) and his staff. Intact stability evaluations include the effects of topside icing, high winds, personnel crowding, heavy lifts over the side, high speed turns, and towing. FCCS also supports ballasting analysis for amphibious ships as well as providing bottom reaction and beached stability data for grounding incidents. Bv providing a tool for the ''fuel king'' and DCA to generate the required daily updates on the current ship load and liquids status, FCCS is assured of an accurate baseline in the event of damage. The design allows the evaluation of the ultimate ship stability status for a damage event using simple compartmentation and flooding status inputs. Evaluation of the adequacy of resulting stabilitv, as well as identification of such critical stability parameters as off center loading, margin line immersion, and negative GM, are accomplished by the program. Guidance is provided for the user to initiate appropriate flooding related damage control activities. Initially fitted on USS Oliver Hazard Perry Class frigates, FCCS databases have been for the USCG Hamilton class high endurance cutters, USS Arleigh Burke class Aegis destroyers, and a variety of other U.S. Navy and U.S. Coast Guard ship classes. The progra

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Short‐term load forecast by plausibility checking of announced demand: An expert‐system approach

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European Transactions on Electrical Power 1993年第5期3卷 353-358页

作者： Markovié, M.L. Fraissler, W.F. Milorad L. Marković (1960) received the Dipl.-Ing. and M.Sc. degrees in electrical engineering from the University of Beognd in 1984 and 1990 respectively. From 1985 to 1991 he was at the Institute “Mihajlo Pupin” Beo-grad up to 1987 in the Operation Research group afterwards in the Power System group. In 1990/91 he spent a year at the Austrian Electricity Board (Verbundgesellschaft VG) in Vienna/Austria on a pilot project for expert-system application for operation scheduling. Since September 1991 he is a staff member of the central dispatching department of the VG. His research interests are application of the operations research methods and expert systems in power system control and operation. (Öster-reichische Elektrizitätswirtschafts-AG (Verbundgesellschaft) Hauptlastverteiler Am Hof 6a A-1010 Wien/Austria T +431/531 13 - 23 68 Fax +431/531 13 - 23 16) Walter F. Fraissler (1961) received the Dip1.-Ing. degree in 1984 and the Doctoral degree in 1988 both in Applied Mathematics from the University of Technology of Vienna/Austria. He started his professional experience 1984 as a research assistant at the Department of Economics of the University of Vienna. 1986/87 he attended the Institute for Advanced Studies in Vienna and in 1987 he joined the Austrian Electricity Board (Verbundgesellschaft) in its Electronic Data Processing department. His main interests are applications of econometric and Operations Research methods including expert system technology. (Österreichische Elektrizitätswirtschafts-AG (Verbundgesellschaft) Daten verarbeitung Am Hof 6a A-1010 Wien/Austria T +431/531 13 - 2948 Fax +431/531 13- 4191)

Short‐Term Load Forecast at Verbundgesellschaft (VG ‐ the Austrian Electricity Board) is presented. As the VG has only regional utilities and large industries as purchasers, classical forecast methods are not appropriate. Much more suitable is a plausibility check of a set of announced purchasers demands, for which an expert system has been developed for one to three days ahead forecasts. It has been realized with the help of a rule‐oriented expert system shell based on Prolog, and contains about 250 rules. Normal days as well as special days are considered. The prototype has been tested at the central dispatcher of the VG since autumn 1990. Results and acceptance by the users are promising. Copyright © 1993 John Wiley & Sons, Ltd.

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Intelligent controller for Flexible Manufacturing System

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IFAC Proceedings Volumes 1992年第7期25卷 79-84页

作者： K.B. Woo K.S. Seo I.S. Ahn C.H. Lee S.K. Shin Department of Electrical Engineering Yonsei University Engineering Research Center for Advanced Control and Instrumentation by KOSEF Seoul 120-749 Korea Gold Star Industrial Systems Co. Ltd Anyang 430-080 Korea

This paper investigates and develops an intelligent controller for FMS, which is suitable for a variety of manufacturing types with smaller product ion rates. The controller is designed to integrate optimization techniques with heuristic rules for loading as well as flow rate of parts and ultimately meeting performance indices. The control function implemented by an optimization technique is to select loading alternatives and to calculate their short term production rates within capacities of production system. The heuristic control determined by production rules requires knowledge base to evaluate selected loading alternatives according to current process information, and also to determine final decision pertaining to loading. The knowledge base is constructed using IF-THEN rules for evaluating alternatives, decision criteria, and flow control of parts in manufacturing system. Graphic simulation is employed to display current status of the function and operation of manufacturing system. Computer simulation for the proposed intelligent controller with variable demands is carried out to evaluate its performance.

关键词： Intelligent control FMS production scheduling optimization heuristic control knowledge base

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On the dynamic characteristics of radial-axial ring roiling processes

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Journal of Manufacturing Science and engineering, Transactions of the ASME 1992年第2期114卷 188-195页

作者： Choi, H.D. Cho, H.S. Lee, J.S. Control Systems Design Department Korea Advanced Energy Research Institute Choong—nam P. O. BOX 7 Daeduk—danji South Korea Department of Production Engineering Korea Advanced Institute of Science and Technology Seoul P. O. BOX 150 Chongryangri South Korea Daejeon Machine Depot South Korea

An analytical model is presented to describe the dynamic characteristics of the radialaxial ring rolling process. Growing motions of rolled ring are analyzed in relation to the actions of pressure roll and conical roll, and the variations of both rolling forces are also discussed. In this developed model the interaction between pressure roll and conical roll motions as well as the temperaturevariation of rolled material which critically affects the deformed state of the ring is considered. To verify the validity of this dynamic model, the simulation results are compared with those obtained experimentally. Experiments were carried out with AISI1045 steel blanks in hot condition. The theoretical results are found to coincide well with the experimental results. © 1992 by ASME.

关键词： Blanks Steel Simulation results Pressure Dynamic models Temperature

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IMPROVING THE SHIP DESIGN, ACQUISITION AND CONSTRUCTION PROCESS

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NAVAL ENGINEERS JOURNAL 1992年第2期104卷 39-57页

作者： RYAN, JC JONS, OP J. Christopher Ryan:earned his bachelor's and master's degrees in Naval Architecture from Webb Institute and MIT respectively. He spent three years at the Advanced Marine Technology Division of Litton Industries working on the DD-963 class ship design and related computer aided design projects. he subsequently went to the Navy Department concentrating on early stage design of surface combatants for 12 years including work on the FFG-7 Sea Control Ship CSGN and CVV aircraft carrier projects. He then shifted focus and became the technical director for the Computer Supported Design Program in NavSea for five years. Mr. Ryan has served in several supervisory positions within the Ship Design Group in NavSea since that time. He is currently the project manager for the Ship Design Acquisition and Construction Process Improvement Project. Otto P. Jons:received a Diplom Ing. in shipbuilding from the Technical University of Hannover W. Germany and an M.S. in naval architecture and marine engineering from the Massachusetts Institute of Technology in 1967. He then joined Litton Ship Systems where he was responsible for the preliminary design of the DD-963 hull structure and then for ship systems as manager LHA Ship Systems Engineering Department. From 1972 to 1974 he was principal research scientist at Hydronautics. In 1976 as technical director he helped establish the local office of Designers and Planners. Otto Jons was one of the co-founders of Advanced Marine Enterprises Inc. in 1976 where he is corporate vice president engineering.

In the spring of 1990, the NavSea Chief Engineer initiated a project to improve the design, acquisition and construction (DAC) of U.S. Navy ships. The project's objectives are to reduce the time and cost of acquiring and operating Navy ships while improving their quality, unlike previous studies on the subject, the project utilizes a rigorous process analysis approach and attempts to use quantitative measures as the basis for recommending improvements. The paper is, of necessity, a status report on the progress of this project. Topics covered include: the DAC process;a look at the current state of ship acquisition time, cost, and quality;the methodology for process improvements;and early findings.

关键词： Naval Vessels

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DAMAGE control - THE LAST LINE OF SHIPBOARD DEFENSE

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NAVAL ENGINEERS JOURNAL 1992年第1期104卷 63-79页

作者： HERMAN, S LOESER, CT Stanley Hermanis the acting director of the Ship Survivability Subgroup (Sea 55X) at the Naval Sea Systems Command. He received a BSME from Northeastern University in 1966 and a MSME from Northeastern in 1970. In 1978 he completed requirements for a Certificate in Acoustics at Catholic University and in 1989 he completed the Program Management Course at the Department of Defense Systems Management College. He is a registered professional engineer in Washington D.C. a certified NavSea Material Professional and a member of ASME ASE and SNAME. Mr. Herman began his career with the Navy Department immediately after high school working as a student trainee (marine engineer) at the Boston Naval Shipyard until 1966. Upon obtaining his BSME he served as a project engineer in the Noise Shock and Vibration Group at the Boston Naval Shipyard and was responsible for conducting and directing shipyard and at-sea testing and evaluation of components systems and structure for surface combatant and auxiliary naval craft. In 1974 he transferred to the Naval Sea Systems Command where he was the coordinator of survivability and detection for the SSBN Trident submarine acquisition project manager PMS 396. He was responsible for directing efforts to enhance the acoustical silencing underwater explosion shock protection and shipboard vibration control for this latest class of strategic missile submarines. From 1982 to 1986 Mr. Herman was assigned as head of the Submarine Protection branch Sea 55X11 where he was responsible for directing submarine shock hardening programs. From 1986 to 1991 he served as division director for damage control Systems Safety Personnel Protection and CBR Defense Sea 55X2. In 1991 he assumed his present position of acting director Ship Survivability Subgroup Sea 55X. Christopher T. Loeseris currently acting director of the Damage Control and Ship Design Systems Safety Division at the Naval Sea Systems Command. The division is responsible for lifecycle management of damage control chemical

This paper addresses the ship, system and equipment design features, operational doctrine and training that has been developed to provide effective shipboard damage control. Both the ship and the sailor are addressed, since both are integral and interdependent components of the damage control "system." Also, the enhancements afforded to protection of personnel from the effects of conventional and nonconventional weapons are discussed. Finally, a brief look into the future is presented. With the shrinking defense budget and corresponding reduction in fleet size and ship manning, novel system designs and automated decision aids will be required to do the job.

关键词： Naval Vessels

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New style for three-layer channel routing

New style for three-layer channel routing

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IEEE International Symposium on Circuits and systems (ISCAS)

作者： L.K. Chang K. Nakajima Control Engineering Department National Chiao Tung University Hsinchu Taiwan Department of Electrical Engineering Institute of Advanced Computer Studies and Institute of Systems Research University of Maryland College Park MD USA

The authors propose a new style for three-layer channel routing. Liked the horizontal-vertical-horizontal (HVH) model, the middle layer is reserved for all vertical connections to the terminals on both sides of a channel. However, the authors use rectilinear wires on the top and bottom layers to complete the remaining routing. Using this model, the authors develop a channel router and show that it produces optimum solutions to all the benchmark examples tested. The algorithm runs in O(n/sup 2/w+wl) time, where n, w, and l are the number of nets, the channel width, and the sum of lengths of wires for the nets, respectively. It was implemented in C on a Sun 3/160 workstation. The experimental results are provided.< >

关键词： Routing Wire Wiring control engineering Educational institutions Benchmark testing Integrated circuit layout Heuristic algorithms Councils

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A Discrete Iterative Learning control Method with Application to Electric Servo Motor control

A Discrete Iterative Learning Control Method with Applicatio...

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American control Conference (ACC)

作者： Hee J. Park Hyung S. Cho Sang R. Oh Department of Production Engineering Korea Advanced Institute of Science and Technology Seoul South Korea Control Systems Laboratory Korea Institute of Science and Technology Seoul South Korea

In this paper, an iterative learning control algorithm for unknown linear discrete systems is proposed by employing a parameter estimator together with an inverse system model. Regardless of initial error and inherent parameter uncertainty, a good tracking control performance is obtained using the proposed learning control algorithm characterized by recursive operations. A sefficient condition for convergency is provided to show the effectiveness of the proposed algorithm. To investigate the performance of the algorithm a series of simulations and experiments were performed for the tracking control of a servo motor.

关键词： Iterative methods Servomechanisms Motor drives control systems Parameter estimation Helium control system synthesis Iterative algorithms Error correction Humans

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Multivariable Adaptive Optimisation of the Performance of Fermentation Process

Multivariable Adaptive Optimisation of the Performance of Fe...

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American control Conference (ACC)

作者： C Kambhampati M. T. Tham G. A Montague A. J. Morris National Engineering Laboratory UK Advanced Control and Knowledge Based Systems Research Group DEPARTMENT (IF CHEMICAL AND PRICESS ENGINEERING University of Newcastle Newcastle-Upon-Tyne UK

This paper addresses the multi-variable optimisation of bioreactor performance. The central idea here is to use a time series model, which is identified on-line, to evaluate the steady-state performance of the bioreactor. A simple algorithm has been developed around this theme and analysed in Kambhampati et al (1989). A fermentation process model has been developed to provide a test system for the optimisation scheme. The model takes into account the effect of temperature and dilution rate on the biomass production. For this process a multi-variable, model is identified on-line. It has been shown that the model provided optimal results.

关键词： Steady-state Mathematical model Bioreactors Temperature control systems Chemical engineering Algorithm design and analysis Monitoring System testing Biomass

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Application of an Adaptive control Method to the Guide Roll Force control for Ring Rolling Processes

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IFAC Proceedings Volumes 1990年第8期23卷 335-340页

作者： H.D. Choi H.S. Cho C.O. Lee Control Systems Design Department Korea Advanced Energy Research Institute P.O. Box 7 Daeduck-Danji Choong-Nam Korea Department of Production Engineering Korea Advanced Institute of Science and Technology P.O. Box 150 Chongryangri Seoul Korea

In spite of several advantages and increasing application of the ring rolling process, analytical design method for controlling the process has been little investigated. This paper considers the ring rolllng process control and treats the problem of controlling the guide roll force which is critical to the stability of the rolling process. There are difficult control problems associated with this process due to the nonlinear characteristics and parameter variation of the process dynamics. In order to control the guide roll force to track a desired profile as close as possible durIng the rolling cycle, an adaptive controller was designed taking into consIderation these fundamental properties of the rolling process. Simulation studies were conducted to verify the effectiveness of this controller. The results show that the proposed adaptive controller is fairly InsensitIve to the parameter variation, and yields desirable performance of tracking guIde roll force throughout the rolling time.

关键词： Adaptive control force control nonlinear systems parameter estimation ring rolling process

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