【作者】 崔文彬；

【导师】 吴桂涛； 孙培廷；

【作者基本信息】 大连海事大学 ， 轮机工程， 2007， 硕士

【摘要】 论文对“海燕”号高速客轮的喷水推进系统及其液压系统进行了细致介绍，针对目前安全评估中经常应用的几种评估方法，指出故障模式影响分析(FMEA)方法适用于高速客滚轮安全评估的要求。论文使用FMEA功能分析法，建立评价指标体系：利用FMEA方法，以“海燕”号喷水推进器及其液压系统为研究对象，制作出专家调查表格，发放给专家帮助填写；表格回收后，将表格的结果整理成RPN值。针对FMEA表格涉及的评价因素多、模糊概念多的特点，运用模糊综合评判建模并进行分析： 一、通过对表格的统计，得到不同部件故障RPN值处于不同等级的概率，得到模糊因子集； 二、对重要性表格进行汇总，应用层次分析法得到权重； 三、通过对模糊因子集和权重进行模糊运算，得到模糊因子集分析结果向量； 四、采用加权平均反模糊化方法，将向量结果转化为具体数值。 分析结果表明，评估对象安全性很高，FMEA与模糊综合评判结合对于船舶综合安全评估可行，而且分析方法简便，易于理解；在评估过程中，模糊综合评判对FMEA表格进行补充，使高速客滚船FMEA综合安全评估过程更具科学性。更多还原

【Abstract】 The paper introduces the water jet and its system on board high speed passenger ship HAIYAN, and some methods usually applied in project assessment are introduced in detail. Among these assessment methods, Failure Modes and Effects Analysis (FMEA) is available to evaluate high speed ro-ro ships. Based on FMEA method, a survey of water jet and hydraulic system troubles is made and the questionnaires are distributed. With the questionnaires retrieved, RPN value of each potent trouble yields. Since many evaluation elements are involved in FMEA and their concepts are fuzzy, a Fuzzy Comprehensive Evaluation model is put forward to analyze the whole system. The process is as follow:Firstly, to get Fuzzy set with RPN values from questionnaires retrieved;Secondly, to get the weights of each potent trouble with the degree of difficulty tables, through AHP (Analytic Hierarchy Process) method;Thirdly, with Fuzzy set and weights, to get a vector result through Fuzzy operation;Fourthly, by the method of weighted mean defuzzification, to convert the vector into a single value.The analyzing result indicates that FMEA combined with Fuzzy method is feasible and comprehensible to the ship safety assessment, and the method is easy to handle. Because FMEA questionnaire is complemented by Fuzzy Comprehensive Evaluation, the application of FMEA on high speed ro-ro ships is more scientific.更多还原