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High-Temperature Superconducting Magnetic Levitation Vehicles: Dynamic Characteristics While Running on a Ring Test Line

机译:高温超导磁悬浮车:在环形测试线上行驶时的动态特性

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In the long-distance operation of the high-temperature superconducting (HTS) magnetic levitation (maglev) systems, the dynamic characteristics of the vehicle are closely related to its security and stationarity, which require in-depth research to ensure its safe operation. Thus, we investigated the dynamic characteristics of the HTS maglev and assessed its safety and stationarity when running on a ring test line. In the experiments, the important parameters related to safety are lateral displacement (LD) and levitation height (LH). Results show that an appropriate low field-cooling height (FCH) is beneficial for its safe operation, and the maximum LD (MLD) should be considered in vehicle designs. Moreover, in other experiments, we tested the vibration acceleration of the HTS maglev vehicle using acceleration sensors and assessed its stationarity according to the Chinese National Standard GB5599-85, which is specifically published to assess the stationarity and security of railway vehicles by the China Ministry of Railways. The stationarity of the HTS maglev vehicle running on the ring test line is of good grade. When the secondary suspension and appropriate measures of vibration reduction are considered, the stationarity will be greatly improved.
机译:在高温超导(HTS)磁悬浮(maglev)系统的长距离运行中,车辆的动态特性与车辆的安全性和平稳性密切相关,这需要深入研究以确保其安全运行。因此,我们研究了HTS磁悬浮列车的动态特性,并在环形测试线上运行时评估了其安全性和平稳性。在实验中,与安全性相关的重要参数是横向位移(LD)和悬浮高度(LH)。结果表明,适当的低现场冷却高度(FCH)有利于其安全运行,并且在车辆设计中应考虑最大LD(MLD)。此外,在其他实验中,我们使用加速度传感器测试了HTS磁悬浮车辆的振动加速度,并根据中国国家标准GB5599-85评估了其平稳性,该标准是由中国交通部专门评估铁路车辆的平稳性和安全性的铁路。在环形测试线上行驶的HTS磁悬浮车辆的平稳性良好。当考虑二次悬挂和适当的减振措施时,平稳性将大大提高。

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