The kinetic characteristics of blades of axial-flow compressor were researched by taking blades of axial-flow compressor as subjects. The static frequency, the dynamic frequency and vibration modes were calculated by the mode analysis of the blades. The difference between the dynamic frequency and the static frequency was small under each rotational speed. Because the pre-stress imposed by the centrifugal force was distributed in the groove, the centrifugal force has little influence on the vibration specific of the blades. The Campbell diagram which described the dynamic frequency under the rotational speed of 1000～3000 r/min is drew. Through an analysis of the Campbell diagram and the calculation of resonance safety ratio, it was found that there are two resonant peaks and frequency must be adjusted.%以轴流压缩机动叶片为研究对象,分析了轴流式压缩机叶片的动态特性.对叶片进行模态分析,计算得到其静频值、动频值及其相应振型.发现叶片在各个转速下的动频值与静频值相差很小,说明离心初应力对叶片的振动特性影响很小,这是因为离心力产生的预应力仅仅分布在叶根榫槽处.并将模态计算得到的转速1 000～3 000 r/min的动频绘制成Campbell图,通过对Campbell图进行分析及共振安全率的计算发现,叶片存在2个共振点,必须对其进行调频.
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