排序方式: 共有128条查询结果,搜索用时 15 毫秒
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700系电动车组用单臂型受电弓 总被引:2,自引:0,他引:2
阐述了700系电动车组用单臂型受电弓的研制过程。通过一系列的试验表明,单臂型受电弓具有结构简单、噪声低的优点。 相似文献
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简要介绍了国外电动车组的技术特点和发展形势,对动力分散型电动车组和动力集中塑电动车组进行了综合比较,结合特点阐述了电动车组技术对铁路客运经济的影响。 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(11):1621-1642
ABSTRACTHigh-speed electric multiple units (EMUs) have been popularised rapidly all around the world and have become a major transportation method. Increases in running velocity and wheel-rail deterioration lead to excessive vibration and reduced ride comfort, which are common issues encountered in the operation of high-speed EMUs. While built-in sensors on a car body are able to detect abnormal vibrations in the car body itself, they cannot effectively reflect the ride comfort of passengers. Wheel-rail profile matching can improve the wheel-rail interaction, and rail grinding has thus been introduced as a practical solution to alleviating the aforementioned problems. Nonetheless, the working mechanism of rail grinding has not been investigated theoretically. This study develops flexible car body and human body models based on the rigid-flexible coupled method to systematically study the effects of wheel-rail wear and rail grinding on passenger ride comfort. Case studies show that the proposed models can predict the ride comfort of passengers accurately. It is also demonstrated that rail grinding can significantly alleviate excessive vibration and improve passenger ride comfort in the long term. A long-term investigation reveals that rail grinding can improve the smoothness of the rail surface and reduce the damage to the rail. 相似文献
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介绍了动力分散型电动车组微机控制系统的构成,着重说明了其特点及主要技术参数。运行表明,系统控制可靠,达到了设计要求,同时也证实了控制思想的正确。 相似文献
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介绍了200km/h电动车组用ZD118型脉流牵引电动机的设计难点,技术关键以及为解决这些问题所采取的措施。同时,还说明了在现代牵引电机设计中,采用先进的设计和进行试验研究的必要性。 相似文献
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介绍了E5系电动车组批量生产前样车的设计理念、结构特点、主要技术参数及车上设备. 相似文献