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Free vibration analysis of annular sector plates via conical shell equations

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Demir Ç., Ersoy H., Mercan K., Civalek Ö.
Curved and Layered Structures
|
2017
|
tom 4
|
nr 1
146-157
EN
In this paper, free vibration analysis of annular sector plates has been presented via conical shell equations. By using the first-order shear deformation theory (FSDT) equation of motion of conical shell is obtained. The method of discrete singular convolution (DSC) and method differential quadrature (DQ) are used for solution of the vibration problem of annular plates for some special value of semi-vertex angle via conical shell equation. The obtained numerical results based on the two numerical approaches for annular sector plates compare well with the results available in the literature. The effects of some geometric parameters, grid numbers and types of the grid distribution have been discussed for curved plates.
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Vibration analysis of FG cylindrical shells with power-law index using discrete singular convolution technique

100%
Mercan K., Demir Ç., Civalek Ö.
Curved and Layered Structures
|
2016
|
tom 3
|
nr 1
EN
In the present manuscript, free vibration response of circular cylindrical shells with functionally graded material (FGM) is investigated. The method of discrete singular convolution (DSC) is used for numerical solution of the related governing equation of motion of FGM cylindrical shell. The constitutive relations are based on the Love’s first approximation shell theory. The material properties are graded in the thickness direction according to a volume fraction power law indexes. Frequency values are calculated for different types of boundary conditions, material and geometric parameters. In general, close agreement between the obtained results and those of other researchers has been found.
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