The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 7B-1 Reducing the Construction Contract Cycle for Naval Auxiliary Ships
The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 7B-1 Reducing the Construction Contract Cycle for Naval Auxiliary Ships

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Published: 1992

Total Pages: 24

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A Mid-Term Fast Sealift Technology Development Program producibility study was undertaken by the Manufacturing Systems Division (Code 125) of the Naval Surface Warfare Center, Carderock Division (NSWC) for the Naval Sea Systems Command Computer Aided Engineering Division, Ship Design and Engineering Directorate, SEA 507. The producibility project team was initially tasked to identify and evaluate possible design improvements with regard to their potential impact upon the cost of construction for the Baseline (BL) Oa rough order of magnitude (ROM) geared-diesel option. This particular design varient is a 30 kt twin screw, 289 m (948 ft.) roll-on/roll-off (RO/RO) vessel with four 18 PC4.2V medium speed diesels producing 85,619 kilowatts (114,817 h.p.) of installed power. The construction cost estimate developed by NAVSEA for this particular design varient is $385 million per ship (I). In addition to the NAVSEA-assigned task, the team reviewed the producibility aspects of the Navy auxiliary ship procurement process with regard to finding methods that would facilitate major reductions in the construction contract cycle, as time is now recognized as a major cost driver in ship procurement (2). The construction contract cycle is defined as the amount of time from construction contract award to delivery, and was estimated by NAVSEA to be 42 months for this particular design varient (3).

The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 3A-2: The First of a Class - Production of Large Military FRP Displacement Hulls
The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 3A-2: The First of a Class - Production of Large Military FRP Displacement Hulls

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Published: 1992

Total Pages: 15

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The production of large FRP vessels for military missions is underway in shipyards throughout the United States. These vessels. in many cases, can be built to commercial standards using guidelines already in place. These guidelines are developed through interfaces with private industry and experienced production personnel. By binding the builder to a set of military specifications which detail the entire production process the vessel cost of construction is increased.

The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 4B-2: Defining the Shipyard's Engineering Requirements
The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 4B-2: Defining the Shipyard's Engineering Requirements

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Published: 1992

Total Pages: 17

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It is customary for a shipyard to subcontract with one or more design agents for at least some portion of the detail design of a ship to be constructed by the shipyard. Past experience with this process has demonstrated that it has the potential to be the source of inefficiencies, wasted efforts and deteriorated relations between the shipyard and design agent. The Society of Naval Architects and Marine Engineers (SNAME) Ship Production Committee Panel, (SP-41, Design/Production integration, sponsored a project to improve this process. This effort developed a list of the information which should flow from a shipyard to a design agent in order for the design agent to generate the calculations, drawings and other deliverables in a timely fashion and useable format to support the construction effort. This paper describes the methodology used to develop the required information and reviews the details of the list.

The National Shipbuilding Research Program. 1992 Ship Production Symposium Proceedings. Paper No. 7B-3: Performance Measurement in Unstable Conditions
The National Shipbuilding Research Program. 1992 Ship Production Symposium Proceedings. Paper No. 7B-3: Performance Measurement in Unstable Conditions

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Published: 1992

Total Pages: 12

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A number of descriptions of systems of performance measurement have been published, and more work has been carried out recently to develop their use for estimating purposes. One of the key problems is that most of the systems described rely on a systematic database which is built up from analysis of a stable production system. Currently such stability is the exception rather than the rule for most shipbuilding companies. The paper reviews the problem, focusing on global measures which can allow overall performance to be assessed, and also on work station performance. It considers the relationship between the global and local measures and proposes a method which would allow performance to be established readily. A method of planning for an improved performance in the future, but during the life of existing contracts is also proposed.

The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 2B-3: The SP-4 Workshop on Computer Aids for Shipyards
The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 2B-3: The SP-4 Workshop on Computer Aids for Shipyards

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Published: 1992

Total Pages: 18

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The shipbuilding industry in the United States stands at the crossroads of major changes in the global marketplace (1). The Society of Naval Architects and Marine Engineers Ship Production Committee Panel 4 (Design / Production Integration) is launching a major project to examine the best computer technology to assist yards to enter this new marketplace. This paper reports on the progress to date and especially the initiating national conference held in May 1992.

The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 5B-1: NIDDESC - Enabling Product Data Exchange for Marine Industry
The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 5B-1: NIDDESC - Enabling Product Data Exchange for Marine Industry

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Published: 1992

Total Pages: 14

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The use of Computer Aided Design (CAD) technology in the U.S. Navy and Marine industry has evolved from a drafting based design tool to a 3-Dimensional(3D) product oriented information base, used for design, production and service lift support. One of the most significant enhancements to current CAD technology has been the incorporation or integration of non-graphic attribute information with traditional graphics data. This expanded information base or product model has enabled the marine industry to expand CAD use to include such activities as engineering analysis, production control, and logistics support. While significant savings can be achieved through the exchange of digital product model data between different agents. current graphics based CAD data exchange standards do not support this expanded information content.

The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 4A1: Producibility in the Naval Ship Design Process - A Progress Report
The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 4A1: Producibility in the Naval Ship Design Process - A Progress Report

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Published: 1992

Total Pages: 31

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In October 1989, A Ship Design for Producibility Workshop was held by the Naval Sea Systems Command (NAVSEA) at the David Taylor Research Center (DTRC). The purpose of the workshop was To develop the framework of a plan to integrate producibility concepts and processes into the NAVSEA Ship Design Process. The major recommendations of the workshop included initiatives related to increased training of NAVSEA design engineers in modem ship production concepts, development of producibility design tools and practices for use by NAVSEA design engineers, improved cost models, implementation of produability strategies for ship design process improvements, modification to existing acquisition practices, and improved three-dimensional (3-D) digital data transfer. The workshop was one of NAVSEA s first Total Quality Leadership (TQL) initiatives and was subsequently expanded into the Ship Design, Acquisition and Construction @AC) Process Improvement Project. This paper reports on the major findings and recommendations of the workshop, the near term accomplishments since the workshop, and the long range strategic plan for continuously improving producibility in the Naval Ship Design Process.

The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 5A-2: Human Factors - An Initiative in the United States Coast Guard
The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 5A-2: Human Factors - An Initiative in the United States Coast Guard

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Published: 1992

Total Pages: 13

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Although the concept of human factors is not new, it is new within the marine system. Ship design and operations are just a part of the marine system. The marine system is everything and anything associated with the marine community, environment, industry, etc.; whether it is public or private. Human factors is a means to improve and maintain a better quality of life in both the workplace and the home. Human factors is compatible and complimentary with good managerial practices, and is back by sound engineering. The aim of this paper is to expose the reader to human factors.

The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 2B-2: The Effective Use of CAD in Shipyards
The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 2B-2: The Effective Use of CAD in Shipyards

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Published: 1992

Total Pages: 15

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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.

The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 2A-1: Environmental Pollution Control - Regulatory Considerations and a Case in Point
The National Shipbuilding Research Program, 1992 Ship Production Symposium Proceedings, Paper No. 2A-1: Environmental Pollution Control - Regulatory Considerations and a Case in Point

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Published: 1992

Total Pages: 14

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During recent years, the United States has paid increasing attention to controlling and minimizing environmental pollution. One result of this attention is the development of new laws and regulations, enforced by the Environmental Protection Agency (EPA) and by state and local agencies. These new environmental laws and regulations are considerably more stringent than those of past years and they directly impact how shipyards must conduct their operations. This paper discusses these laws and regulations at the national, state (including California, Virginia and Connecticut), and local levels.