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Free Vibration Analysis of Stiffened Conical Shell with Variable Thickness Distribution

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Abstract:

The free vibrations of the stiffened hollow conical shells with different variable thickness distribution modes are investigated in detail in the context of Donnel-Mushtari conical shell theory. Two sets of boundary conditions have been considered. The algebraic energy equations of the conical shell and the stiffeners are established separately. The Rayleigh-Ritz method is used to equate maximum strain energy to maximum kinetic energy which leads to a standard linear eigenvalue problem. Numerical results are presented graphically for different geometric parameters. The parametric study reveals the characteristic behavior which is usefulis inuseful in selecting the shell thickness distribution modes and the stiffener type.

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Periodical:

Applied Mechanics and Materials (Volume 614)

Pages:

7-11

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.614.7

Citation:

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Online since:

September 2014

Authors:

Wei Ning*, Dong Sheng Zhang, Ji Ling Jia

Keywords:

Conical Shells, Free Vibration Analysis, Fundamentalthickness, Ring-Stiffener, String Stiffener, Variable Thickness

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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