论文信息 - Vibration analysis of rotating pre-twisted blades

Vibration analysis of rotating pre-twisted blades

Abstract Equations of motion for the vibration analysis of rotating pre-twisted blades are derived from a modelling method which employs hybrid deformation variables. The derived equations are transformed into dimensionless forms in which dimensionless parameters are identified. The effects of the dimensionless parameters on the modal characteristics of rotating pre-twisted blades are investigated. In particular, eigenvalue loci veering phenomena and associated mode shape variations are observed and discussed in this work.

[1] Hong Hee Yoo,et al. VIBRATION ANALYSIS OF ROTATING CANTILEVER BEAMS , 1998 .

[2] S. Putter,et al. Natural frequencies of radial rotating beams , 1978 .

[3] Charles E. Smith,et al. Vibration Modes of Centrifugally Stiffened Beams , 1982 .

[4] Suong V. Hoa,et al. Vibration of a rotating beam with tip mass , 1979 .

[5] A. Leissa. On a curve veering aberration , 1974 .

[6] Takashi Yokoyama,et al. Free vibration characteristics of rotating Timoshenko beams , 1988 .

[7] J. S. Rao,et al. FEATURE ARTICLE: items of special interest, tutorials, and surveys: Turbomachine Blade Vibration , 1987 .

[8] Thomas R. Kane,et al. THEORY AND APPLICATIONS , 1984 .

[9] W. Carnegie,et al. The Coupled Bending—Bending Vibration of Pre-Twisted Tapered Blading , 1972 .

[10] Lysbeth A. Woolcott,et al. Reports and Memoranda , 1974 .

[11] V. Ramamurti,et al. Natural frequencies of twisted rotating plates , 1984 .

[12] W. Carnegie,et al. Matrix Displacement Analysis of Coupled Bending-Bending Vibrations of Pretwisted Blading: , 1967 .

[13] J. S. Rao. Turbomachine Blade Vibration , 1991 .

[14] R. Scott,et al. Dynamics of flexible beams undergoing overall motions , 1995 .

[15] Sen Yung Lee,et al. Bending vibrations of a rotating non-uniform beam with tip mass and an elastically restrained root , 1992 .