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The calculation method for the slamming load of manned submersibles floating on the water surface at zero speed was studied in this paper, the calculation processes for predicting slamming pressure were provided based on the frequency domain and time domain response, the calculation formula for the extreme value of slamming pressure was derived, and the frequency domain and time domain slamming pressure prediction on a certain manned submersible were performed. According to the calculation results, the effects of ship motion and wave surface inclination on the water entry angle were not considered in the frequency domain method, so it is only suitable for ships whose motion responses have little effect on the water entry angle. For a manned submersible, the motion response is significant, which will reduce the entry angle and lead to obvious increase of the slamming pressure coefficient. At this point, the slamming load should be calculated based on the time domain method to avoid the underestimation of the slamming load. At zero speed, the slamming pressure of the submersible on the wave facing side is significantly greater than that on the other side. So the slamming pressure on the stern is greater in following waves, while the slamming pressure on the bow is greater in head waves.
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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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