Naval ship design synthesis computer programs, the original development of which was pioneered by the U.S. Navy, are now used by the U.S. Navy to conduct feasibility design studies and to conduct reverse engineering analyses of foreign ships. The use of these computer programs has substantially reduced the time and cost of conducting feasibility design trade‐off studies and has allowed the ship designer to develop very accurate design solutions that can be effectively used as the basis for preliminary and contract design. The paper describes an interpolative technique for ship design which the authors have developed and incorporated in a variety of ship design synthesis computer programs, without any loss in the accuracy of the design solution. The interpolative technique short cuts the classic and time consuming design spiral approach to conducting ship design studies, which was incorporated in the original ship design computer programs. The interpolative technique also significantly reduces computer operating costs and provides the ship designer with the flexibility required to quickly study the performance and cost impact of using any number of innovative ship configurations. The paper describes programming techniques and ship design logic which allow a ship design computer program to be used to study the impact of using alternative ship design criteria and practices, including different types of hull forms and stability criteria. Also discussed are alternative ways that ship design parametric data can be developed for use in a ship design synthesis computer program. An example of a ship design study which was conducted using the interpolative technique is shown.
Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.
There are two principal benefits to conducting comparative engineering analyses of U.S. and foreign ship design practices and criteria: 1) they offer an opportunity to identify clever ideas from which the U.S. can benefit, and 2) they cause us to assess U.S. design practices critically that we may have been taking for granted or may have been accepting as inviolable. The results of a comparative analysis of U.S. and foreign hull form, machinery, and structural design practices are reported in this paper. Numerous studies of U.S. and foreign warships have shown that the hull form, machinery, and structural design practices of various navies differ considerably. Although most large navies operate their ships in generally similar environments, each country has developed its own unique style of hull form. Based on an assessment of foreign hull form design practices, the U.S. Navy has recently developed a style of hull form that offers improved stability and seakeeping performance and which facilitates the arrangement of internal functions. Foreign ships generally have a tighter machinery arrangement than comparable U.S. ships. However, this is not necessarily achieved by accepting less subsystem performance or by sacrificing redundancy. The tightness of foreign machinery plants seems to be achieved by tighter management control over the ship design and acquisition process. In addition, foreign navies appear to be more flexible in adjusting to a new technology such as that which occurred during the change from steam to gas turbine propulsion. U.S. ships appear to be constructed to more rigorous structural detail design standards than foreign ships. The structural configuration of foreign ships, including the integration of web frames, longitudinal girders, and stanchions also differs from U.S. practice. The configuration of ship structure and the value of rigorous U.S. structural design practices are worthy of additional research. The results of the study reported in this paper highlight the value to the U.S. Navy of conducting comparative engineering analyses of U.S. and foreign ship design practices in the future.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.