针对各种船用替代燃料实船应用的风险,提出失效模式、后果和严重度分析(failure modes,effect and criticality analysis,FMECA)模糊综合评价法,即将传统的FMECA半定量风险评估法转化为定量风险评估,同时综合考虑各风险因素间的相互影...针对各种船用替代燃料实船应用的风险,提出失效模式、后果和严重度分析(failure modes,effect and criticality analysis,FMECA)模糊综合评价法,即将传统的FMECA半定量风险评估法转化为定量风险评估,同时综合考虑各风险因素间的相互影响。将该方法运用于63000 t液货船的甲醇燃料风险评估中,结果表明甲醇燃料的风险等级为中等,与实船应用结果相符,证明该方法可用于船用替代燃料的风险分析。展开更多
On the basis of introducing the fundamental theory and the basic analysis steps of the sub model method, the strength of the new engine complex assembly structure was analyzed according to the properties of the engin...On the basis of introducing the fundamental theory and the basic analysis steps of the sub model method, the strength of the new engine complex assembly structure was analyzed according to the properties of the engine structures, some of the key parts of the engine were analyzed with refined mesh by sub model method and the error of the FEM solution was estimated by the extrapolation method. The example showed that the sub model can not only analyze the comlex structures without the restriction of the software and hardware of the computers, but get the more precise analysis result also. This method is more suitable for the strength analysis of the complex assembly structure.展开更多
文摘On the basis of introducing the fundamental theory and the basic analysis steps of the sub model method, the strength of the new engine complex assembly structure was analyzed according to the properties of the engine structures, some of the key parts of the engine were analyzed with refined mesh by sub model method and the error of the FEM solution was estimated by the extrapolation method. The example showed that the sub model can not only analyze the comlex structures without the restriction of the software and hardware of the computers, but get the more precise analysis result also. This method is more suitable for the strength analysis of the complex assembly structure.
