In view of the current situation that the detection indices of maglev train boot rail system both domestically and internationally are relatively limited,and there is a lack of detection data within the 100—140 km/h speed range,a comprehensive detection framework for high-speed maglev train boot rail system is proposed. Firstly,in accordance with relevant standards and specifications of pantograph and conductor rail system testing,a detection method is developed,which includes conductor rail contact force,vibration acceleration,electric shoe current,arc combustion and transverse geometric parameters of the conductor rail. Secondly,a real-time side conductor rail monitoring system that combines video surveillance and data statistical analysis is proposed,and a supporting program for extraction,processing and analysis of original detection data is developed. Finally,a medium- and low-speed maglev line is taken as the test object,and the data measured at different speed levels of the maglev train are analyzed. The results show that the dynamic performance of the pantograph differs during the upward and downward runs of the maglev train; The contact force and vibration degree at the expansion joint are larger than those in the middle section,indicating poorer dynamic performance of the conductor rail. Toe vibration mainly comes from vertical vibration. Relevant studies reveal the characteristics and issues of the maglev train boot rail system under different working conditions,providing theoretical support and practical basis for the further optimization of the maglev train boot rail system.
| 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 |