A study of vibration damping algorithm and its application on compressor blades

The use of viscous-elastic materials has been considered as one of the effective means for coping with vibrations in major mechanical devices of power engineering units. The calculation of vibration eigenvalues, though rather complicated, is of crucial importance. In view of the possibility of a wide-range variation of damping characteristics of mechanical devices the authors have proposed a high-order perturbation model. The latter has unified calculation scheme and can be employed to perform a reliable analysis of the eigenvalues of the relevant devices. A study of its use on compressor blades has shown that the model gives reliable results, lends itself to be easily programmed by a computer and can be readily popularized for general use.