某双壳油船总纵极限强度计算与分析

Calculation and analysis of ultimate longitudinal strength for a double-hull tanker

随着船体破坏机理的研究进一步深入,在进行船体结构设计时除了目前大多数船级社规范中采用的线弹理论计算方法,另一个重要指标——船体总纵极限强度也必须考虑。以某双壳油船为例,采用不同计算方法对该船中剖面总纵极限弯矩进行计算分析。结果表明:该双壳油船的总纵极限强度满足共同规范的相关要求。

With further research on the hull damage mechanism,an important index,the hull ultimate longitudinal strength,must be taken into account during the hull structural design,besides current algorithm of linear elasticity theory adopted by most of classification societies. Taking a double-hull tanker as an example,the ultimate longitudinal bending moments of its midship section are calculated by different calculation methods. The results show that the ultimate longitudinal strength of the tanker can meet the requirements of the common rules.