According to the nonlinear governing equations of the large deflection plate theory , the ultimate strength formulations of the plate elements under combined loads are developed by taking into account the effects of initial imperfections 并考慮初始缺陷對極限強(qiáng)度的影響; ?按照ccs “油船結(jié)構(gòu)直接計(jì)算分析指南” ( 2004 )對110 , 000dwt原油船進(jìn)行有限元直接計(jì)算。