Research On Accuracy Process Management Based On Lean Shipbuilding

Accuracy management level is not only an important indicator of shipbuilding enterprises, but also one of its core competitiveness. Domestic shipyards has established the accuracy result management system of quality management mode gradually in recent years based on the introduction of 3D digital measurement equipment and accuracy analysis software, which has improved the accuracy of segment completion and dock assembly. However, what makes the accuracy management different from quality management is that the purpose of accuracy management is to ensure the continuity of production, reduce the production gap and realize the lean shipbuilding on the basis of meeting the standards of the enterprise itself rather than to meet the specification requirements of the inspection party directly.At the same time, it points out in “Opinions about further promoting modern shipbuilding mode” issued by the National Ministry of Industry and Information Technology during the Twelfth Five-Year Plan period that the shipbuilding accuracy control will step forward and towards design from the hull mounting process, also the hull engineering will extend towards outfitting, thus to achieve full range and whole process of accuracy control, improve margin-less manufacturing efficiency of the segments, reduce the cutting rate during intermediate process and improve the quality control.This paper will start from hull engineering project and do a series of researches regarding the whole process of hull construction. The main research contents are as follows:(1) The paper will expound the three levels of planning management in the production plan management system of shipbuilding enterprises and break the production plan into more elaborate small schedules combined with accuracy management to form small schedules plan of accuracy and lay the foundation for accuracy management blending into the production management system.(2)Base on modern shipbuilding mode process and started from the concept of lean shipbuilding, this paper will study on the accuracy management technology and method during the whole shipbuilding procedure and analyze how the total stations are used to control the accuracy during the production.(3)The accuracy contraction data accumulated during management process in localarea will be analyzed and calculated here. Also this paper will conduct researches on digital design and construction of the hull baseline on the basis of the contraction data and promote the dimension accuracy standard setting method based on dimension contraction data.(4) This paper will do researches and explorations on accuracy process management system and promote the requirements and functional designs of accuracy process management system based on the accuracy schedule plan for production plan management.