本文用特征值法研完了叶片频率失调及盘片耦合对叶栅颤振边界的影响。计算结果表明:失调可延迟颤振边界,在一定的失调幅度范围内,随着失调幅度的增大,颤振边界向后移;不同的失调阶次对颤振边界的影响不同,影响的大小取决于颤振时的振动阶次。此外,计及盘片耦合效应后,失调叶栅的颤振边界前移。 In this paper, the eigenvalue method has been used to study the effects of blade frequency offset and disk coupling on the flutter boundary of cascade. The results show that the offset can delay the flutter boundary, and the flutter boundary moves backward with the amplitude of the offset increasing with a certain offset range. The influence of different offset order on flutter boundary is different, Depending on the order of vibration during chattering. In addition, the flutter boundary of the offset cascade moves forward, taking into account the disk coupling effect.