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Taking wet clutch as the research object, through theoretical calculation of coupling steel temperature of clutch, the clutch torsional and convective heat transfer coefficients are estimated by establishing the clutch torsional thermodynamic model. The main factors affecting the accuracy of calculation are extracted, and a physical model for dynamic measurement of steel sheet temperature is developed for key factors. Based on the measured results, the distribution law of axial temperature field of different steel plates is analyzed, the cooling oil passage of the clutch is optimized, the maximum temperature difference of different steel plates is reduced by 74.6%, which effectively improves the transmission torque of the clutch. At the same time, the clutch temperature model in-depth calibration under different oil temperature, torque and speed difference is carried out, which realizes the precise torque transfer ability of the transfer case while still secures the function of reliable thermal protection function.
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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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