针对小水线面双体船,采用船级社提出的简化计算法、谱分析法和设计波法三种常用S-N曲线法进行典型节点的疲劳寿命计算.对各种方法的计算过程及结果进行比较,归纳它们之间的差异和计算过程中的关键点,还就小水线面双体船疲劳评估方法提出建议.%Three common-used S-N curve methods,simplified method by classification society,spectral fatigue analysis method and design wave approach are applied in the fatigue assessment of the typical nodes in a SWATH.Differences between these methods and key points in the computation are summarized systematically.Some suggestions for the fatigue assessment of SWATH are given.
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