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基于FEM-MBD的屏蔽切割机的故障振动特征研究

Jiaxin Chen1, Pingsong Zhang1,2, Shenglin Li3,4

  • 1School of Earth and Environment, Anhui University of Science & Technology, Anhui, 232001, China.

Scientific reports
|October 30, 2025
PubMed
概括

在岩石破碎过程中出现故障的盾牌切割机显示出明显的振动模式. 数字模拟显示了速度和角速度的变化,有助于早期检测故障,以实现更安全,更经济的煤矿建设.

关键词:
切割故障是一个切割故障.一个有限的元素.多体动力学多体动力学切割岩石的实验实验 切割岩石的实验盾牌机器机器 盾牌机器机器振动的特性 振动的特性

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Three-Phase Short Circuit—Unloaded Synchronous Machine01:21

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Conducting a three-phase short circuit test on an unloaded synchronous machine helps understand its impact on the system. The AC fault current's oscillogram, with the DC offset removed, reveals that the waveform amplitude decreases from an initially high value to a steady-state level for one phase of the machine.
This behavior occurs due to the magnetic flux produced by the short-circuit armature currents. Initially, these currents follow high-reluctance paths but eventually shift to...