International Maritime Organization (IMO) have recently discussed the technical problems related to the second-generation intact stability criteria of ships. The second-generation intact stability criteria refer to five modes of vulnerability when the ship sailing in the ocean. In this study, we described a method to verify the criteria of the surf-riding/broaching. In case that Lv1 (Level 1) vulnerability criteria is not satisfied based on the relatively simple calculation using the Froude number (Fn), we presented the calculation procedure for the Lv2 (Level 2) criteria considering the hydrodynamics in waves. The results were reviewed based on the data for given previous ships. In absence of ship-specific data, a similar Lv2 result was confirmed by comparing the result obtained by calculating the added mass with the case where the added mass was 10% of the ship mass. This result will contribute to basic ship design process according to the IMO draft regulation.

国际海事组织（IMO）最近讨论了与船舶第二代完整稳性标准相关的技术问题。第二代完整稳性标准是指船舶在海洋中航行时的五种脆弱性模式。在这项研究中，我们描述了一种验证冲浪/拉削标准的方法。如果基于使用弗劳德数 ( Fn)，我们介绍了考虑波浪中的流体动力学的 Lv2（级别 2）标准的计算程序。结果是根据给定以前船只的数据进行审查的。在没有船舶特定数据的情况下，通过比较计算附加质量获得的结果与附加质量为船舶质量的 10% 的情况，确认了类似的 Lv2 结果。该结果将有助于根据 IMO 草案规定的基本船舶设计过程。