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Vibration of waffle cylinders

Published online by Cambridge University Press:  04 July 2016

R. Karmakar
R. Karmakar*
Affiliation:
Indian Institute of TechnologyKharagpur, India
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Summary

A vibration analysis of waffle cylinders with various stiffener configurations is made using the energy method. The frequency factors of the stiffened cylinders are obtained in terms of various non-dimensional parameters. To make a comparative study, the frequency factors are maximised for a fixed cylinder mass and stiffener eccentricity ratio. It is observed that spiral and circumferential configurations are efficient whereas axial stiffening is detrimental.

Type
Research Article
Information
The Aeronautical Journal , Volume 86 , Issue 859 , November 1982 , pp. 350 - 353
Copyright
Copyright © Royal Aeronautical Society 1982 

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References

1. Hoppmann, W. H. II, Some Characteristics of the Flexural Vibrations of Orthogonally Stiffened Cylindrical Shells. Journal of Acoustical Society of America, 1958, 30, 77–82.Google Scholar
2. McElman, J. A., Mikulas, M. M. and Stein, M. Static and Dynamic Effects of Eccentric Stiffening of Plates and Shells. AlAA Journal, May 1966, 4, 887–894.Google Scholar
3. Egle, D. M. and Sewall, J. L. An Analysis of Free Vibration or Orthogonally Stiffened Cylindrical Shells with Stiffeners Treated as Discrete Elements. AIAA Journal, March 1968, 6.Google Scholar
4. Egle, D. M. and Soden, K. E. A Theoretical Analysis of the Free Vibration of Discretely Stiffened Cylindrical Shells with Arbitrary End Conditions. AIAA Structural Dynamics and Aeroelasticity Specialist Conference, New Orleans, 16th-17th April 1969, 262–274.Google Scholar
5. Parthan, S. and Johns, D. J. Effect of Inplane and Rotary Inertia on the Frequencies of Eccentrically Stiffened Cylindrical Shells. AlAA Journal, March 1970, 8, 592–595.Google Scholar
6. Parthan, S. and Johns, D. J. Vibration and Flutter of Unstiffened and Orthogonally Stiffened Circular Cylindrical Shells, Department of Transport Technology, Loughborough University of Technology, TT 7106, June 1971.Google Scholar
7. Karmakar, R. Axially Compressed Optimum Cylinder — Comparison of Stiffener Configurations. Journal of Spacecraft and Rockets, September-October 1980, 17, 477–478.Google Scholar
8. Karmakar, R. Buckling of Waffle Cylinders. Aeronautical Journal, July 1979, 83, 274–278.Google Scholar
9. Baig, M. I. and Yang, T. Y. Buckling of Orthogonally Stiffened Waffle Cylinders. Journal of Spacecraft and Rockets, December 1974, 11, 832–837.Google Scholar
10. Forsberg, K. Influence of Boundary Conditions on the Modal Characteristics of Thin Cylindrical Shells, AlAA Journal, December 1964, 2, 2150–2157.Google Scholar