From frequency diagram of flexural vibration, it is revealed that the vibration amplitude of 1X frequency decreases and that of 2X frequency disappears.
在次同步谐振发生的时间内，弯振谱图上二倍频成分消失，工频成分的幅值变小。
From frequency diagram of flexural vibration, it is revealed that the vibration amplitude of 1X frequency decreases and that of 2X frequency disappears.
在次同步谐振发生的时间内，弯振谱图上二倍频成分消失，工频成分的幅值变小。
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