The Second Generation Intact Stability Criteria—Achievements and Remaining Issues

Umeda, Naoya; Francescutto, Alberto

doi:10.1007/978-3-031-16329-6_2

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“…The historical and theoretical backgrounds of the SGIS criteria can be found in the literature. [4][5][6][7] Several studies have been conducted to investigate the validity and applicability of the SGIS criteria. For instance, Wandji and Corrignan 8 studied the assessment of parametric roll, pure loss of stability, and excessive acceleration failure modes for a large number of ships, covering a wide range of ship types, sizes, and speeds.…”

Section: Introductionmentioning

confidence: 99%

Parameter sensitivity of the excessive acceleration failure mode in second-generation intact stability

Yang

2023

Proceedings of the Institution of Mechanical Engineers, Part M:

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In this study, the parameter sensitivity of the level 1 and 2 assessments of the excessive acceleration failure mode in the International Maritime Organization second-generation intact stability was analyzed. Monte-Carlo simulations were conducted using the input parameter space, which was generated using a Gaussian distribution, and a variance-based sensitivity analysis was performed using the Monte-Carlo simulation results. The longitudinal and vertical positions of the check point, natural roll period, and roll decay coefficient were selected as input parameters for the level 1 assessment, whereas the roll damping coefficient and effective wave slope coefficient replaced the roll decay coefficient for the level 2 assessment. The results revealed that the highest total sensitivity index for the level 1 assessment was the natural roll period, which was 0.8, and the effective wave slope had a total sensitivity index of 0.5 for the level 2 assessment. This indicated that the uncertainty of the natural roll period was dominantly propagated to the resultant value of the level 1 assessment, while the effective wave slope coefficient was the most sensitive parameter in the level 2 assessment. The uncertainty in the input variable was found to cause the opposite decision if the resultant value was close to the criterion value under a given loading condition.

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Section: Introductionmentioning

confidence: 99%

Parameter sensitivity of the excessive acceleration failure mode in second-generation intact stability

Yang

2023

Proceedings of the Institution of Mechanical Engineers, Part M:

View full text Add to dashboard Cite

show abstract

The Second Generation Intact Stability Criteria—Achievements and Remaining Issues

Cited by 1 publication

References 3 publications

Parameter sensitivity of the excessive acceleration failure mode in second-generation intact stability

Parameter sensitivity of the excessive acceleration failure mode in second-generation intact stability

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