Title of article :
A Parametric Study for Vibration Analysis of Composite Cylindrical Shell Resting under Elastic Foundation: Analytical and Numerical Methods
Author/Authors :
Noorabadi, M Composite Materials & Technology Center - Malek-e-Ashtar University of Technology, Tehran, Iran , Namdaran, N Composite Materials & Technology Center - Malek-e-Ashtar University of Technology, Tehran, Iran , Rahnama, M Composite Materials & Technology Center - Malek-e-Ashtar University of Technology, Tehran, Iran , Eskandari Jam, J Composite Materials & Technology Center - Malek-e-Ashtar University of Technology, Tehran, Iran
Abstract :
The aim of this study is to investigatethe effective parameters on vibrations of circular cylindrical shells with fixed rotary speed andresting elastic foundation by means of analytical and finite element numerical simulation. First, the governing equations are derived using the theory of Donnell, considering the centrifugal forces,Coriolis acceleration, and the initial annular tension. Then, the analytical solution for cylindrical shells isintroduced under simply supported conditions. Further, the effect of parameters such as therotational speed of the shell, its lay-up, fiber angle, and the stiffness of the elastic foundation on the values of natural frequency and the critical velocity of the shells are studied. The analytical solution results are in good compatibility with the results achieved from the finite element method.
Keywords :
Finite element , Vibration analysis , Annular cylindrical shells , Donnel theory , Analytical solution
Journal title :
Astroparticle Physics
