而挠性转子在接近或超过其第一、二阶临界转速时，转子处于共振状态，这时动挠度达到很大的数值。
The dynamic deflection may become very large due to resonance in case of the flexible rotor speed approaching or exceeding its 1st or 2nd order critical speed.
结果表明，基于转子的一阶、二阶和三阶临界转速以及轴向固有频率幅值能有效地检测涡轮泵的故障。
The results show that the turbopump faults can be detected effectively by using the amplitudes of rotor first, second and third order critical frequency as well as axial intrinsic frequency.
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