Blades are idealized as twisted cylindrical thin panels and the free vibrations of rotating blades are studied in this paper. First the steady deformation due to rotation is studied by using the principle of virtual work for deformation, then considering the initial deformations and the initial stre
Vibrations of rotating thin cylindrical panels
โ Scribed by C.T. Loy; K.Y. Lam
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 873 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0003-682X
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โฆ Synopsis
In this paper, the vibrations of rotating thin cylindrical panels are investigated. The d@erential equations of motion, which take into account the eflects of centrtfugal, Coriolis and initial tension, are formulated using Love'sJirst approximation theory for a thin shell theory. The analysis is carried out using closed-form solutions for simply supported boundary conditions and the eigensolutions are obtained using the Newton-Raphson method. Parametric studies are made on cylindrical panels which rotate about their horizontal axes and are of the rectangular and square planform types. The results obtained indicate that the bifurcations of natural frequencies are similar to those for a rotating cylindrical shell. The analysis is validated against results available in the literature.
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