2009 Fiscal Year Final Research Report
Research on Quantitative Prediction of Parametric Roll and its Prevention
| Project/Area Number |
20760558
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Naval and maritime engineering
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| Research Institution | Osaka University |
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Principal Investigator |
HASHIMOTO Hirotada Osaka University, 工学研究科, 助教 (30397731)
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| Project Period (FY) |
2008 – 2009
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| Keywords | パラメトリック横揺れ / 復原力変動 / 横揺れ減衰力 / アンチローリングタンク / 粒子法 |
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| Research Abstract |
A mathematical model was developed for quantitative prediction of parametric roll, which calculate hydrodynamic forces for instantaneous submerged hull. It was confirmed that this model with roll damping estimated from a forced roll motion test can predict parametric roll in regular seas quantitatively. Furthermore, influence of anti-rolling tank shapes and bow-flare & stern hull forms on parametric roll was investigated, and design guidance for avoiding parametric roll was obtained respectively.
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