The Hull Nesting Data Management System Based On .NET Platform

As an important part of shipbuilding, hull nesting process is the concentrated embodiment of hull data management, which directly affects the steel using rate of hull manufacture, and has close relation to the economic benefit of the shipbuilding enterprise. In this paper, taking nesting department's hull nesting work of Dalian shipbuilding industry as its background, the hull nestmg PDM system developed with applying CAD-related technology to the design of PDM system. In the meantime, informationization and automatization in hull nesting work is realized, as well as the work efficiency is improved, the consume of the raw cut down and the design period of processed materials reduced.On the base of summarizing the development situation at present and trend of PDM technology, according to the long-term investigation and research on the spot in enterprise, the actual hull nesting flow and existent problem are analyzed in the paper, an OODM design method which combining the PDM technology and hull nesting technology is carried out to meet the requirement of the hull nesting roboticized, the main part design scheme and the function model of nesting data management system is constructed. Meanwhile, the function of each module is discussed in detail, at the same time , the key technology is also researched. The approaches of dynamic establishing nesting information dada-base to accomplish big data quantity storage are proposed , the problems of access right and system security are also well resolved.This system is established in the actual work, not only the requirement analysis but also the elaborate design are carried out to realize this system including part data management ,nesting design CAD sub-system, and steel data management. Based on C/S structure which can provide powerful client function, SQL Server2000 database system are selected to finish this system in the Visual Studio .NET environment by cooperating with group. By optimizing part storage technology on the part data management aspect, the combination of graphics and relation database is realized; The approaches of applying ObjectARX.NET to the realization of secondary development for AutoCAD2007 are proposed to accomplish such functions as creating block files creating and nesting drawing storage; On the steel data management aspect, using the UML(Unified modeling language), the process flow has been designed and the flow charts have been drawn. This paper presents the approach of integrating PDM with CAD technology which can be successfully used in hull nesting design. At present, the system has been accomplished, and has been applied successfully in corporation, therefore it has been proved that the system can meet the need commendably...