根据刚度耦合原理，并考虑轴系强迫激励进而建立了扭纵耦合强迫振动模型。

According to coupling principle and excited force of shafting system, a model of coupled torsional-axial forced vibration can be constructed.

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从非定常流动和弹性叶片振动相耦合的角度来研究叶片的强迫响应，对于叶片的高周疲劳具有重要意义。

From the standpoint of coupling of non-steady flow with elastic blade vibration, studied was the forced response of blades, which is of major significance for the high-cycle fatigue of blades.

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