ON THE ACCURATE ANALYSIS OF FREE VIBRATION OF OPEN CIRCULAR CYLINDRICAL SHELLS
β Scribed by S.D. Yu; W.L. Cleghorn; R.G. Fenton
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 600 KB
- Volume
- 188
- Category
- Article
- ISSN
- 0022-460X
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β¦ Synopsis
This paper considers the analytical methods used and the boundary conditions encountered in the accurate free vibration analysis of open circular cylindrical shells. The simple boundary conditions associated with the Donnell-Mushtari theory of thin shells are classified into primary and secondary boundary conditions. Different combinations of these primary and secondary boundary conditions lead to the use of different analytical methods. Exact solutions for basic shells with different combinations of primary boundary conditions are obtained using the generalized Navier method. Accurate solutions for shells with secondary and mixed boundary conditions are obtained by using the method of superposition. One needs to investigate only four primary and nine secondary basic shells in order to obtain solutions for shells with arbitrary combinations of simple boundary conditions.
π SIMILAR VOLUMES
The free vibration and the effect of material damping on damping factors are analyzed. An improved shell theory with shear deformation and rotatory inertia has been used, together with a semi-analytical higher order sub-parametric finite element with five nodes per element and 25 degrees of freedom.