A computer model is being developed by the David Taylor Research Center (DTRC) to analyze the tolerance of surface ship combat systems to combat-induced and self-inflicted damage. The work is being done in support of ...
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A computer model is being developed by the David Taylor Research Center (DTRC) to analyze the tolerance of surface ship combat systems to combat-induced and self-inflicted damage. The work is being done in support of the Navy's hull, mechanical and electrical design effort to improve the survivability of surface ship combat systems. The DDG-51 Detailed Design Specifications (Section 072f) and the General Specifications for Ships of the U.S. Navy (1986 Section 072e) both require that damage tolerance analyses be performed. A damage tolerance analysis shows the effect of damage on vital auxiliary and electrical systems and relates these damage effects to the capability of the ship to continue performing its combat mission at a prescribed level. Designated the Computer Aided Design of Survivable Distributed systems (CADSDiS) model, DTRC's deterministic analytical tool consists of portable software to be used by personnel at the activity responsible for the ship design. The model's graphics electrical module is now operating on Digital Equipment Corporation VAX computers at several Navy and commercial activities. Because CADSDiS is highly interactive, it becomes an integral part of the design cycle; this is its major benefit. Thus, damage tolerance analysis information is available to personnel designing the ship within hours or days rather than weeks or months. This computer model will help ensure that the survivability principles of separation and redundancy are incorporated into ship design and are realized in the ship as built.
作者：
BLACKWELL, LMLuther M. Blackwell:is presently the Data Multiplex System (DMS) program manager in the Bridge Control
Monitoring and Information Transfer Branch of the Naval Sea Systems Command (NavSea). He graduated from the University of Maryland in 1964 receiving his BS degree in electrical engineering. After graduating he was employed in the Bureau of Ships where he held project engineering assignments on various ships entertainment magnetic tape recording fiber optics computer mass memory and information transfer systems. He has also pursued graduate studies in engineering management at The George Washington University.
The Data Multiplex System (DMS) is a general-purpose information transfer system directed toward fulfilling the internal data intercommunication requirements of a variety of naval combatant ships and submarines in the...
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The Data Multiplex System (DMS) is a general-purpose information transfer system directed toward fulfilling the internal data intercommunication requirements of a variety of naval combatant ships and submarines in the 1990–2000 time frame. The need for a modern data transfer system of the size and capability of DMS has increased as various digital control systems throughout naval ships have adopted distributed processing architectures and reconfigurable control consoles, and as the quantity of remotely sensed and controlled equipment throughout the ship has increased manyfold over what it was in past designs. Instead of miles of unique cabling that must be specifically designed for each ship, DMS will meet information transfer needs with general-purpose multiplex cable that will be installed according to a standard plan that does not vary with changes to the ship's electronics suite. Perhaps the greatest impact of DMS will be the decoupling of ship subsystems from each other and from the ship. Standard multiplex interfaces will avoid the cost and delay of modifying subsystems to make them compatible. The ability to wire a new ship according to a standard multiplex cable plan, long before the ship subsystems are fully defined, will free both the ship and the subsystems to develop at their own pace, will allow compression of the development schedules, and will provide ships with more advanced subsystems. This paper describes the DMS system as it is currently being introduced into the fleet by the U.S. Navy. The results of its design and implementation in the DDG-51 and LHD-1 class ships are also presented.
The article discusses defective organizational control systems which the author states can be brought on by an insufficient understanding of the nature of organizational control or a lack of knowledge about the criter...
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The article discusses defective organizational control systems which the author states can be brought on by an insufficient understanding of the nature of organizational control or a lack of knowledge about the criteria of a control system. The article deals with the organizational control system as a managerial tool. The author is concerned with organizational control, the process of influencing the behavior of members of a formal organization. The author explains that organizational control systems can be defined as a set of mechanisms designed to raise the probability that people will behave in ways that lead to the attainment of organizational goals.
作者：
SISSON, JONATHAN A.USN (RET.)Capt. Jonathan A. Sisson
USN (RET.) is a graduate of the United States Naval Academy and received his degree of Master of Science in Naval Architecture from the Webb Institute of Naval Architecture. From 1964 to 1969 he was the Planning & Estimating Superintendent at the Norfolk Naval Shipyard. From 1969 to 1976 he was the Director Naval Shipyard Management Systems Division Naval Sea Systems Command during which period he initiated the development of the improved Shipyard MIS. From December 1976 until his retirement from the Navy on 1 July 1978 he was the Manager Naval Shipyard Management Information System Improvement Program Naval Sea Systems Command. He joined the staff at ORI Inc. Silver Spring Md. in September 1978 and is a member of SNAME and the Society for Management Information Systems.
The standard Naval Shipyard managementinformation System (Shipyard MIS) in use at the eight United States Naval Shipyards is a computer‐based system that processes data related to virtually every element of naval sh...
This paper examines the problem of effectively allocating production shifts to a set of production lines and assigning a product to each line under various resource restrictions. This is the kind of allocation problem...
This paper examines the problem of effectively allocating production shifts to a set of production lines and assigning a product to each line under various resource restrictions. This is the kind of allocation problem encountered when the profit motive is (partially, temporarily or totally) removed from the decision-making process (e.g. aggressive marketing or military operations). The system effectiveness is measured by the percent satisfaction of demands (readiness ratios). Two mixed integer programming models are developed and illustrated by means of an example. The first maximizes the smallest readiness ratio for a product, while the second minimizes the total deviation from the goal of perfect satisfaction of all demands. Extensions of these models are also suggested.
This paper reports a laboratory experiment designed to determine whether human resource value numbers, which are the output of a proposed method of human resource valuation, influence a selected human resource managem...
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