Research Article
Design of Independent Type-B LNG Fuel Tank: Comparative Study between Finite Element Analysis and International Guidance
Table 5
Load cases of the structural analysis.
| | Loads | Load cases | | Normal operating condition | 30° heeled condition | Collision | | Acc. verti. | Acc. trans. | Acc. longi. | Acc. verti_heel | Acc. trans_heel | Acc. longi_heel | Col. fore | Col. rear |
| | LNG temp. (−163°C) | √ | √ | √ | √ | √ | √ | √ | √ | | Self-weight (gravity 1.0 G) | √ | √ | √ | √ | √ | √ | √ | √ | | Vapor pressure “” | √ | √ | √ | √ | √ | √ | √ | √ | | Heeling (30°) | — | — | — | √ | √ | √ | — | — | | Internal liquid pressure “” | Liquid static pressure “” | √ | √ | √ | √ | √ | √ | √ | √ | | Dynamic pressure “” | Acc. verti. | √ | — | — | √ | — | — | — | — | | Acc. trans. | — | √ | — | — | √ | — | — | — | | Acc. longi. | — | — | √ | — | — | √ | — | — | | +X 0.5 G | — | — | — | — | — | — | √ | — | | −X 0.25 G | — | — | — | — | — | — | — | √ |
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