CAJ | 학술논문

为准确评估超规范的载重3600 t大通舱干货船的弯扭强度及变形水平，采取全船水动力分析及全船有限元直接计算的方法，对各工况下的主要载荷参数进行长期预报，推导出对应等效设计波各参数。根据等效设计波求出各工况全船所受的波浪诱导动载荷，施加到全船有限元模型上，进而对船体弯扭强度及变形水平进行评估。比较了单舱船及货舱中部设一道横舱壁的两舱船，得出单舱船屈曲强度不足的结论，并提出改善屈曲强度的方案。
위준학평고초규범적재중3600 t대통창간화선적만뉴강도급변형수평，채취전선수동력분석급전선유한원직접계산적방법，대각공황하적주요재하삼수진행장기예보，추도출대응등효설계파각삼수。근거등효설계파구출각공황전선소수적파랑유도동재하，시가도전선유한원모형상，진이대선체만뉴강도급변형수평진행평고。비교료단창선급화창중부설일도횡창벽적량창선，득출단창선굴곡강도불족적결론，병제출개선굴곡강도적방안。
To evaluate the deformation , yield strength and buckling of the 3 600 DWT dry cargo ship , the direct calculation of hydrodynamic loadings was carried out to get the long-term prediction of the dominant load parameters in each load case , find out the parameters of the equivalent design waves , then predict the wave-induced hydrodynamic loads and ship motion of the glob-al ship.Based on the wave loading and inertia loads , the structural strength and stiffness of the global hull were direct assessed by FEM for two goal ships , one has just single hatch and another has a bulkhead in the mid-ship.The calculation results showed that single hatch can't meet the buckling criterion , so a scheme to enhance the buckling strength was given .