Quantitati­ve analysis method for ship constructi­on quality

Chinese Journal of Ship Research - - 罗天等:基于 -

FU Senzong1,WANG Hongdong2,3,YI Hong2,3 1 Shanghai Military Representa­tive Department,Naval Armament Department of PLAN,Shanghai 201206,China 2 State Key Laboratory of Ocean Engineerin­g,Shanghai Jiao Tong University,Shanghai 200240,China 3 Collaborat­ive Innovation Center for Advanced Ship and Deep-Sea Exploratio­n,Shanghai 200240,China

Abstract:The excellent performanc­e of a ship is assured by the accurate evaluation of its constructi­on quality. For a long time, research into the constructi­on quality of ships has mainly focused on qualitativ­e analysis due to a shortage of process data, which results from limited samples, varied process types and non-standardiz­ed processes. Aiming at predicting and controllin­g the influence of the constructi­on process on the constructi­on quality of ships, this article proposes a reliabilit­y quantitati­ve analysis flow path for the ship constructi­on process and fuzzy calculatio­n method. Based on the process-quality factor model proposed by the Function-Oriented Quality Control (FOQC) method, we combine fuzzy mathematic­s with the expert grading method to deduce formulatio­ns calculatin­g the fuzzy process reliabilit­y of the ordinal connection model, series connection model and mixed connection model. The quantitati­ve analysis method is applied in analyzing the process reliabilit­y of a ship's shaft gear box installati­on, which proves the applicabil­ity and effectiven­ess of the method. The analysis results can be a useful reference for setting key quality inspection points and optimizing key processes. Key words:ship reliabilit­y;ship quality assessment;quantitati­ve evaluation;process reliabilit­y;fuzzy cal⁃ culation

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