Download or read book The National Shipbuilding Research Program 1990 Ship Production Symposium Paper No 3A 2 Index Based Management Information Systems A Study in Structured Operations written by and published by . This book was released on 1990 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: In any job, project, program, or complex undertaking there exists a need to understand all aspects of the work. This understanding is necessary to satisfy all requirements in the most effective and efficient way. The methods available to plan and accomplish these tasks are as vary as much as the tasks themselves. They range from job shop techniques to Material Requirements Planning (MRP) to Project-Based Management Information System (PBMS) to continuous manufacturing. This paper is a critical analysis aimed at classifying two of these system approaches as they relate to the ship repair equation. Material Requirements Planning (MRP I) tracks a need for material through a project. The production process on the material determines how labor is applied to transform raw materials into finished products. MRP material needs are determined by sales forecasting; while requirements are determined algorithmically from material take-offs. Another form is Manufacturing Resource Planning (MRP II). This form of MRP is a management process, supported by computers, which results in monthly production plans based outlooks, etc., and is far sales more comprehensive in scope and integration than MRP I.
Download or read book The National Shipbuilding Research Program 1995 Ship Production Symposium Paper No 20 The Product Model as a Central Information Source in a Shipbuilding Environment written by and published by . This book was released on 1995 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a shipbuilding CAD/CAM system a product model is successively built up during the design process, with geometric as well as non-geometric information. In parallel with the design process, the model is further extended with work preparation (in some countries called production engineering) information e.g. definition of building strategy and definition of the assembly structure. Information needed for part fabrication can be derived from the model, such as drawings, parts lists and information for numerically controlled (NC) equipment. When work preparation definitions are combined with a product model, the information needed for assembly parts lists, assembly drawings, etc. can be derived from the product model instead of being created manually. Use of the product model concept, systems based upon it and procedures implementing it in an organization will allow a reduction of costs and an increase in productivity and competitiveness.
Download or read book The National Shipbuilding Research Program Proceedings of the IREAPS Technical Symposium Paper No 15 Shipbuilding Project Management written by and published by . This book was released on 1982 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: American shipbuilding management and planning has become a topic of increasing discussion in recent years and various proposals for change have been advanced. Many of these propose adoption-of certain techniques and approaches successfully used --in other major shipbuilding countries such as Japan and Korea, where shipbuilding management is based on organizational, decision making, and operating structures and procedures founded on quite different cultural backgrounds, human relations, and traditions than those found in the U.S. While some of the techniques and approaches found successful in those countries may be transferrable, it must be recognized that the environment in the U.S. cannot be changed in the short run. This makes successful application of some of these methods difficult. Factors which make Japanese and Korean shipbuilding competitive include value engineering, quality circles, labor incentives, high productivity manufacturing processes; rationalized ship design and production, effective organization, labor relations and flexibility, good supplier and customer relations, and effective production planning management and control. There are some factors which are distinctly different, such as the lack of adversity between shipbuilder and client on one hand and management and labor on the other hand. There is a general recognition and acceptance in these countries that adversary relations and potential litigous actions hinder achievement of ship production efficiency and on schedule low cost (and therefore price) delivery. Similarly most supplier, client, and labor issues with shipbuilding management are resolved by various informal approaches with little if any delay. This is quite different from the generally formal approach used in the U.S.A., where procedure, documentation, and even conflict resolution methods are often defined.
Download or read book The National Shipbuilding Research Program Proceedings of the REAPS Technical Symposium Paper No 10 SPCS A Comprehensive System for Shipyard Production Control The National Shipbuilding Research Program written by and published by . This book was released on 1977 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: With shipbuilding capacity worldwide well in excess of demand and competition for orders extremely fierce, shipyards must ensure that all resources are used effectively. Each man on the shop floor, each foreman and manager must be able to carry out the work required of him - which means that he must be provided with all the required information on the work to be done and the means to carry it out. The competition for orders, quite apart from resulting in shorter lead times, has resulted in shipyards building a wider range of products than was envisaged even a short time ago. The potential. variety of individual operations within a shipyard in this situation is much higher than in the case of a single product facility. The information channels used in this production system are similarly going to require greater capacity, speed and accuracy. SPCS is a flexible and uncomplicated approach to production control, aiming to supplement management rather than to replace management decision making by black-box decision rules. It consists of a set of inter-tied modules, each of which is executed either manually or by batch computer processing or on-line, depending on local circumstances.
Download or read book The National Shipbuilding Research Program 1993 Ship Production Symposium Paper No 13 An Engineering Product Model Based on STEP Protocols written by and published by . This book was released on 1993 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Draft STEP application protocols, developed by the Navy Industry Digital Data Exchange Standards Committee (NIDDESC), have been issued to define the information content of a product model for a ship. The work reported in this paper combines the existing CAD models of the DDG51 Class design with a newly developed non-graphic database so that the overall information content complies with the STEP protocols. This work represents the first-time implementation of the application protocols and is a significant step in the Navy's plan to do the design of variants of the DDG51 Class totally in CAD. The combined graphic/non-graphic database is referred to as the DDG51 engineering product model. Emphasis has been placed on populating the non-graphic database with the information necessary to perform all required engineering analyses. The basic schema described in this paper may be extended to support other areas of interest, such as logistics support. technology. As a cost saving initiative and quality improvement measure, the Navy has implemented the use of 3-D Computer Aided Design (CAD). This effort required the development of leading edge CAD technology and the achievement of a cooperative (rather than competitive) success story by the two DDG51 Class shipbuilders and other industry participants. Over 2,500 drawings, many of which contain over 30 sheets per drawing, are required to build an AEGIS destroyer. Maintaining an error free design baseline defined by these drawings has proven to be a challenge in a 2-D manual environment. To improve efficiency, the entire design is being converted to 3-D CAD. The DDG51 design consists of 77 design zones. A 3-D computer generated representation of each of these zones is being developed. These models contain library parts defining equipment and machinery arrangements, structure, ventilation, electrical, and piping distributive systems.
Download or read book The National Shipbuilding Research Program Proceedings of the REAPS Technical Symposium Paper No 12 Application of Modular Software to Establish a Closed Loop System for Shipyard Production Control written by and published by . This book was released on 1980 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper addresses the key functions of a closed-loop production and inventory, and planning control system generally applicable to the shipbuilding industry. A key feature of the shipbuilding closed-loop system is the application of made-to-order concepts not generally used in production and inventory planning, and control systems for other industries. The use of modular packaged software to make the system operational on a timely step-by-step basis are explored. Special considerations for tailoring the software to satisfy general shipbuilding requirements are reviewed. A summary of the potential benefits of a closed-loop system (i.e., "what if" planning) is also included.
Download or read book The National Shipbuilding Research Program 1992 Ship Production Symposium Proceedings Paper No 2B 2 The Effective Use of CAD in Shipyards written by and published by . This book was released on 1992 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the current severely competitive climate that is challenging shipbuilders everywhere, how information is managed is taking on extraordinary importance. Existing computer aided design (CAD) systems have not been focused on the most critical information needs, for example, information to serve marketing. This limitation is the result of concentrating primarily on aspects of design and manufacturing without regard for impact on an overall manufacturing system. In this paper the need to extend CAD systems is identified so that they would more fully provide critical-data to everyone who has to have understanding of a manufacturing system's capability and availability.
Download or read book The National Shipbuilding Research Program Proceedings of the REAPS Technical Symposium Paper No 24 Group Technology and Automated Process Planning a Change in Management Strategy written by and published by . This book was released on 1979 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the REAPS Technical Symposium. Paper No. 24: Group Technology and Automated Process Planning, a Change in Management Strategy. The trend toward increased customization is increasing the problems associated with batch manufacturing, both in design and manufacturing itself. Group technology helps to solve these problems and is thus attracting great interest. The benefits of group technology in such applications as design retrieval, design standardization, standardization of machine tool routings, automated process planning, and machine tool investment can bring about dramatic savings in the multibillion dollar manufacturing industry. Three or four years ago, only a handful of companies were interested in group technology. Today, many companies, including a number considered to be highly conservative, are seriously considering or have adopted group technology systems. This increased interest is a reflection of a growing awareness of the potential benefits of group technology, particularly for batch manufacturing. These advantages can apply to both design and manufacturing.
Download or read book Navy Force Structure and Shipbuilding Plans written by Ronald O'Rourke and published by . This book was released on 2020-11-14 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updated 12/10/2020: In December 2016, the Navy released a force-structure goal that callsfor achieving and maintaining a fleet of 355 ships of certain types and numbers. The 355-shipgoal was made U.S. policy by Section 1025 of the FY2018 National Defense AuthorizationAct (H.R. 2810/P.L. 115- 91 of December 12, 2017). The Navy and the Department of Defense(DOD) have been working since 2019 to develop a successor for the 355-ship force-level goal.The new goal is expected to introduce a new, more distributed fleet architecture featuring asmaller proportion of larger ships, a larger proportion of smaller ships, and a new third tier oflarge unmanned vehicles (UVs). On December 9, 2020, the Trump Administration released a document that can beviewed as its vision for future Navy force structure and/or a draft version of the FY202230-year Navy shipbuilding plan. The document presents a Navy force-level goal that callsfor achieving by 2045 a Navy with a more distributed fleet architecture, 382 to 446 mannedships, and 143 to 242 large UVs. The Administration that takes office on January 20, 2021,is required by law to release the FY2022 30-year Navy shipbuilding plan in connection withDOD's proposed FY2022 budget, which will be submitted to Congress in 2021. In preparingthe FY2022 30-year shipbuilding plan, the Administration that takes office on January 20,2021, may choose to adopt, revise, or set aside the document that was released on December9, 2020. The Navy states that its original FY2021 budget submission requests the procurement ofeight new ships, but this figure includes LPD-31, an LPD-17 Flight II amphibious ship thatCongress procured (i.e., authorized and appropriated procurement funding for) in FY2020.Excluding this ship, the Navy's original FY2021 budget submission requests the procurementof seven new ships rather than eight. In late November 2020, the Trump Administrationreportedly decided to request the procurement of a second Virginia-class attack submarinein FY2021. CRS as of December 10, 2020, had not received any documentation from theAdministration detailing the exact changes to the Virginia-class program funding linesthat would result from this reported change. Pending the delivery of that information fromthe administration, this CRS report continues to use the Navy's original FY2021 budgetsubmission in its tables and narrative discussions.
Download or read book The National Shipbuilding Research Program Flexible Production Indices written by and published by . This book was released on 1987 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication supplements others, referenced herein, which describe various aspects of the very effective flexible production system developed by Ishikawajima-Harima Heavy Industries Co., Ltd. (IHI) for operating shipyards. Their use is described to show how man-hour budgeting for most work is based on certainty. The indices are used to relate man-hours required to physical characteristics of materials that are to be fabricated, assembled, or painted. With extraordinary attention to material definition, starting in basic design, the indices permit constant refinement of manpower requirements as design progress refines material requirements. The consequence is unprecedented control of production through control of material. The indices described herein are as for construction of ships and end products other than ships. When supplemented to address rip-out (disassembly) and open-and-inspect work, they are applicable for overhaul and modernization of naval ships. The indices are corporate experience. A product work breakdown and product oriented material management are essential.
Download or read book The National Shipbuilding Research Program Proceedings of the IREAPS Technical Symposium Paper No 24 MAPLIS An On Line Materials Resource Planning System Tailored to the Shipbuilding and Offshore Industry written by and published by . This book was released on 1982 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: MAPLIS is an on-line computer system for material management in yards building ships and offshore constructions. It consists of five modules or subprograms which may be installed separately or together as one integrated system. Material planning and control in MAPLIS starts in the design office with drawing files, material specification and purchase requests, continues with purchase orders, expediting, receiving, storage status and cost control and ends in work preparation with work orders, drawings and bill of materials. The system handles outfit and steel materials, both direct and stock items.
Download or read book The National Shipbuilding Research Program 1997 Ship Production Symposium The Virtual Shipyard A Simulation Model of the Shipbuilding Process written by and published by . This book was released on 1997 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes a unique software program that simulates the dynamic complexities of the ship construction process. The program called ShipBuild, was developed by Decision Dynamics, Inc. (DDI) under a Small Business Innovation Research (SBIR) contract sponsored by NAVSEA. The program greatly simplifies the planning and replanning process, making it easy to create a good production plan and keep it current. This simulation model of the shipyard production process captures both the essential physical shipbuilding activities and the essential management decision-making activities that support the physical production processes. The application consists of two independent submodels, a simulation capability and results viewer component. The first submodel identifies the overall shipyard facility and manpower resources and the second identifies the construction tasks required to build a ship. the submodels interact to calculate the specific allocation of resources over time necessary to produce the ship. The output generated from the program provides the durations and manhour loadings of elements of the ship construction process based upon dynamic resource availability. The output (unlike other scheduling programs for which durations are typically input and resource allocations an output) provides both schedule and resource use. Task durations are calculated based upon the manhour requirements, the number of people assigned and their productivity. Output generated by the application can assist Program Managers and Design Engineers in analyzing the manhour cost and schedule impacts of alternative designs and construction sequences. The program can also help to quantify the cost and schedule impact of delay and disruption as well as assist in identifying the most effective management actions to overcome such problems.
Download or read book Project SHARP Ships Analysis and Retrieval Project Information Storage and Retrieval System written by United States. Navy Department. Bureau of Ships and published by . This book was released on 1964 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Structuring of Organizations written by Henry Mintzberg and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesizes the empirical literature on organizationalstructuring to answer the question of how organizations structure themselves --how they resolve needed coordination and division of labor. Organizationalstructuring is defined as the sum total of the ways in which an organizationdivides and coordinates its labor into distinct tasks. Further analysis of theresearch literature is neededin order to builda conceptualframework that will fill in the significant gap left by not connecting adescription of structure to its context: how an organization actuallyfunctions. The results of the synthesis are five basic configurations (the SimpleStructure, the Machine Bureaucracy, the Professional Bureaucracy, theDivisionalized Form, and the Adhocracy) that serve as the fundamental elementsof structure in an organization. Five basic parts of the contemporaryorganization (the operating core, the strategic apex, the middle line, thetechnostructure, and the support staff), and five theories of how it functions(i.e., as a system characterized by formal authority, regulated flows, informalcommunication, work constellations, and ad hoc decision processes) aretheorized. Organizations function in complex and varying ways, due to differing flows -including flows of authority, work material, information, and decisionprocesses. These flows depend on the age, size, and environment of theorganization; additionally, technology plays a key role because of itsimportance in structuring the operating core. Finally, design parameters aredescribed - based on the above five basic parts and five theories - that areused as a means of coordination and division of labor in designingorganizational structures, in order to establish stable patterns of behavior.(CJC).
Download or read book Project SHARP SHips Analysis and Retrieval Project Information Storage and Retrieval System Computer Aspects and Programs written by United States Ships Bureau and published by . This book was released on 1964 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The National Shipbuilding Research Program 1989 Ship Production Symposium Paper No 4 Design for Steelwork Production During the Concept Design Phase The National Shipbuilding Research Program written by and published by . This book was released on 1989 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods of improving the level of pre-contract design definition and the quality of information relating to steelwork are described. This information is combined with a comprehensive database of manufacturing process information to provide a system for estimating the work content of the main structural steelwork of ships such as ro-ro vessels. Procedures are described which facilitate consistent estimates to be made while minimizing data handling requirements and increasing the flexibility of the method at the concept design stage.
Download or read book Draft Provisional Agenda for the 55th Session to be Held at the Palais Des Nations Geneva Starting on Wednesday 19 March 1997 written by and published by . This book was released on 1996 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
