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In engineering applications, Very Large Floating Structures (VLFS) need to rely on mooring systems to achieve offshore positioning. However, due to their large length-to-width ratio, VLFS have low overall stiffness and are prone to significant elastic deformation under wave action. Based on the rigid body theory, the impact of such deformation on the mooring system cannot be taken into account, nor can the structural dynamic response of the floating structure in the moored state be easily predicted. To address this, this study established a coupled calculation model of the VLFS and the mooring system based on three-dimensional hydroelasticity theory and slender rod mooring dynamics theory. With this model, the structural response of the floating structure under mooring loads is calculable, and the dynamic response of the mooring system to the combined effects of the floating structure’s rigid body motion and elastic deformation is synchronously computable, thereby realizing the high-precision synchronous prediction of mooring tension and structural response. In this paper, this model is used to analyze the coupling performance of a three-module VLFS, and the floating structure’s load response of typical sections and the mooring line tensions are obtained. The results show that the elastic deformation of the floating structure significantly changes the displacement of the mooring points, leading to an increment in mooring line tension reaching the order of 105 N, with the maximum increment being approximately 40% of its pretension.
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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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