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To address the issue of water leakage of automobile sunroofs, theoretical and experimental research on the inlet and drainage characteristics of automobile sunroofs are carried out. By simplifying the automobile sunroof drainage assembly system, the physical model of the sunroof drainage pipeline is constructed, and the pipeline design are modeled and derived, and the theoretical calculation formula of the maximum drainage capacity of the pipeline is obtained. A sunroof test bench is built to measure the influence of various parameters and pipeline parts on the drainage capacity of the drainage pipeline based on the theoretical analysis results, and the theoretical and test results are compared. The water inlet characteristics of the sunroof are experimentally studied, and the distribution characteristics of the water inlet and drainage of the sunroof under different vehicle conditions were analyzed. It is found that the water flow from the drainage pipe is distributed differently with the tilt angle of the vehicle, and the water drainage of the front side of the horizontal vehicle is higher than that of the rear. It is suggested that the slope of the vehicle should be considered in pipeline design to increase the design margin of the front water pipe.
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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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