Free vibration analysis of orthtropic thin cylindrical shells with variable thickness by using spline functions
AUTOR(ES)
Ataabadi, Pouria Bahrami, Khedmati, Mohammad Reza, Ataabadi, Mostafa Bahrami
FONTE
Lat. Am. j. solids struct.
DATA DE PUBLICAÇÃO
2014
RESUMO
In this study, vibration behavior of orthotropic cylindrical shells with variable thickness is investigated. Based on linear shell theory and applying energy method and using spline functions, free vibration relations are derived for shell with variable thickness and curvature. Frequency parameter and mode shapes are found after solving the frequency Eigenvalue equation. Effects of variable thickness along axial and circumferential directions of the shell on its frequency parameter are studied and compared against each other. Shell thickness is assumed to be varied in a parabolic profile along both directions. Also, frequency parameters for both circular and parabolic curvatures along circumferential direction are investigated and results are compared together. In addition, effect of variable thickness on the mode shapes is studied.
Documentos Relacionados
- Large amplitude free vibration of orthotropic shallow shells of complex shapes with variable thickness
- Analytical Bending and Stress Analysis of Variable Thickness FGM Auxetic Conical/Cylindrical Shells with General Tractions
- Vibration Analysis of Rotating Functionally Graded Cylindrical Shells with Orthogonal Stiffeners
- Free and Forced Vibration Analysis of Stepped Circular Cylindrical Shells with Several Intermediate Supports Using an Extended Wave Method; a Generalized Approach
- Nonlinear Vibration and Mode Shapes of FG Cylindrical Shells