水面舰艇纵骨架式板格临界应力计算方法

针对当前水面舰艇相关标准中缺少临界应力规范计算方法的问题,依据经典船体梁弯曲理论和板壳稳定性理论,对船用标准的普遍适用性进行了分析,对简化计算公式的可行性进行了研究,结果表明静力平衡法得到的纵骨架式板格临界荷载系数可能是简化计算法和CCS法的2倍以上,可见简化计算法和CCS法对临界应力的计算过于保守。

The Critical Stress Calculation Method of Warships Longitudinal Frame-Plate

In view of the lack of critical stress calculation method of the current surface ship related standards, on the basis of the classical hull girder bending theory and shell stability theory, universal standard of ship is analyzed, the feasibility of the simplified calculation formula were studied. The results show that longitudinal framing panel critical load coefficient of static equilibrium method may be simplified calculation method and CCS method were more than 2 times, simplified calculation method and CCS method to calculate the critical stress is too conservative.