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In order to satisfy both cushioning and fast-extension performances，the carrier aircraft nose landing gear often adopts the dual-chamber buffer design. Based on a certain type nose landing gear，this paper establishes the dynamic model of the cushioning performance analysis and compares the simulation calculation results with the test results to ensure the validity and correctness of the theoretical dynamic model. The parameter sensitivity analysis of cushioning performance is carried out for the initial filling pressure and volume ratio of the high- and low-pressure chambers of the buffer. Results show that the effects of the initial filling pressure and high- and low-pressure chambers volume ratios on the cushioning performance is different from their impacts on the fast-extension performance. Therefore，the design of the nose landing gear buffer of the carrier aircraft needs to be continuously optimized for taking the cushioning and fast-extension performances into account synchronously.
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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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