Results 61 to 70 of about 3,139 (153)

Test Study on Carbody Abnormal Vibration of High-speed EMUs

, 2014
Carbody abnormal vibration analysis of a high-speed EMUs was researched, mainly containing the wheel tread measurements,carbody vibration on-line test, turn around running and vibration compared before and after repairing profile. The results showed that the change of wheel/rail wear matching in the partial line induced equivalent conicity increasing ...
WU Hui-chao, XU Yun, SHI Jun-jie
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Design of LED Information Display for High Speed EMUs

, 2010
This paper introduced the project development of localization LED information display, which was part for 200 km/h, 300 km/h EMUs. Emphasis had been put on the scheme design for TPX31 passenger information display. The problems happed during production process and its solutions had also been analyzed.
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Design of optimized tread profile for high-speed EMUs

To address two significant issues in high-speed electric multiple units (EMU), i.e. degraded vehicle dynamic performance under existing wheel-rail interactions and increased wheel tread wear at elevated operating speeds, this paper proposes an optimized tread profile design that balances wheel-rail interactions, dynamic performance, and wear resistance.
SUN Weinan, CHI Maoru, XIE Yucheng, CAI Wubin, ZHANG Xiao, CHEN Yongfa   +5 more
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Study of Wheel-slide-protection Strategy of High-speed EMUs

, 2017
Wheel-slide-protection control is one of the core technologies for the high-speed EMUs brake system. The effective and reliable wheel-slide-protection strategy can not only avoid the wheel tread flat, and protect the safety of the vehicle equipments, but also can take advantage of adhension force between wheel and rail to guarantee braking distance ...
SUN Huanyang, Luo Feiping, Wang Qun, Yang Lei, Yang Shuo   +4 more
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TGA16 Type IGBT Converter for High-speed Test EMUs

, 2014
The main technical parameters, power circuit principle, structure and cooling system of the TGA16 type IGBT converter employed in the high-speed test EMUs were introduced, as well as the technical characteristics of the converter. The test proved the converter to meet operation demand of the hish-speed test EMUs.
WENG Xing-fang, LIU Da, ZOU Dang-bing
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Application Development of Cylindrical Roller Bearing for High-speed EMUs

, 2018
Aiming at the problems of tapered roller bearings applied in high-speed EMUs in our country, such as bearing grease leakage, abnormal temperature rise, and stripping, using forward design concept, combined the technical characteristics of cylindrical roller bearings of radial load capacity, high speed limit, strong maintaining lubrication capacity, the
LI Guodong, ZHAO Wenxue, HAN Qingli
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Vibration and Frequency Domain Characteristics of High Speed EMU [PDF]

Journal of Mechanical Engineering, 2013
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Auxiliary Power Supply System of CRH380A High-speed EMUs

, 2015
Composition, voltage type and working principle of CRH380A high-speed EMUs auxiliary power supply system were introduced, and fault extended power supply function which influenced auxiliary power supply system reliability and redundancy was discussed, as well as its realization method.
KANG Wei, YU Weikai, HOU Xiufang
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Novel Pressure Control Equipment for High Speed EMUs

, 2012
Different from the common active or passive pressure protection devices, novel pressure control equipment for high speed EMUs adopted dual-motor driving device with both active and passive pressure protection functions to implement pressure control inside saloon.
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Resilience assessment of EMU train control onboard system considering degraded operation modes. [PDF]

Sci Rep
Tao H, Li W, Shi J, Feng H.
europepmc   +1 more source