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LNG cryogenic hoses are used for connecting floating structures to transport LNG efficiently and continuously in the process of LNG deep-sea transportation and unloading. Making sure that cryogenic flexible hoses operate safely and reliably is crucial for the LNG mining system. The main application conditions of LNG cryogenic hoses are ship-ship side-by-side (SBS) unloading, ship-ship tandem unloading, and ship-shore refueling. The hydrodynamic analysis and calculation of LNG cryogenic hoses were carried out according to these application conditions, and sensitivity analysis of the global layout parameters of the hoses was performed. The LNG cryogenic hose with a diameter of 12 inches was used as the object of study. Considering the combined effects of wind, wave and current marine environmental loads, the LNG cryogenic hose was modeled and subjected to finite element calculations, hydrodynamic analysis and computational checks under different application conditions based on Orcaflex software. The critical response was studied, and sensitivity analysis was performed on the global configuration design parameters of the cryogenic hose and the lifting speed. The results show that increasing the hose length and the distance between the connection points leads to an increase in the curvature extreme value and a decrease in the tension extreme value for both tandem and SBS unloading conditions. The lifting speed decreases the tension extreme value and increases the curvature extreme value during ship-shore refueling condition. The study can provide a theoretical basis for the design optimization of LNG cryogenic hoses and has reference significance for the configuration arrangement of FLNG unloading systems.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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