scholarly journals A Study on Vibration Characteristics of Laminated Composite Cylindrical Shells. An Influence of Material Anisotropy and Geometric Parameters of Shells on Natural Frequencies.

1998 ◽  
Vol 64 (621) ◽  
pp. 1479-1484
Author(s):  
Tetsuya NARISAWA ◽  
Masanori KAWAHARA ◽  
Kohei SUZUKI
Keyword(s):  
Natural Frequencies ◽  
Cylindrical Shells ◽  
Laminated Composite ◽  
Vibration Characteristics ◽  
Geometric Parameters ◽  
Material Anisotropy ◽  
Composite Cylindrical Shells

Hydro-Elastic Vibration of Partially Liquid-Filled or Partially Liquid- Surrounded Composite Cylindrical Shells

2011 ◽  
Vol 462-463 ◽  
pp. 1127-1133
Author(s):  
Zhu Shan Shao ◽  
Guo Wei Ma ◽  
Zhan Ping Song
Keyword(s):  
Natural Frequencies ◽  
Cylindrical Shells ◽  
Hydrodynamic Pressure ◽  
Elastic Vibration ◽  
Vibration Characteristics ◽  
Radius Ratio ◽  
Liquid Density ◽  
External Work ◽  
Love’S Shell Theory ◽  
Composite Cylindrical Shells

Vibration characteristics of partially liquid-filled or partially liquid-surrounded composite cylindrical shells are investigated in this paper. Using Rayleigh-Ritz energy method and Love’s shell theory, eigenvalue equation of the problem is derived, and the polynomial for natural frequencies of such shells is further obtained. The external work by the hydrodynamic pressure, which is introduced by liquid sloshing, is taken into account in the energy function. Hydro-elastic vibration characteristics of a composite cylindrical shell are studied by using the present method. Effects of liquid level, liquid density, fiber orientation, length-to-radius ratio, and thickness-to-radius ratio on the natural frequencies are analyzed and graphically presented.

scholarly journals Numerical analysis of free vibration of cross-ply thick laminated composite cylindrical shells by continuous element method

2013 ◽  
Vol 35 (1) ◽  
pp. 17-30 ◽  
Author(s):  
Ta Thi Hien ◽  
Tran Ich Thinh ◽  
Nguyen Manh Cuong
Keyword(s):  
Finite Element Method ◽  
Vibration Analysis ◽  
Natural Frequencies ◽  
Cylindrical Shells ◽  
Laminated Composite ◽  
Composite Cylindrical Shell ◽  
New Approach ◽  
Reduced Time ◽  
Element Method ◽  
Composite Cylindrical Shells

This paper presents the vibration analysis of thick laminated composite cylindrical shells by a new approach using the Continuous Element Method (CEM). Based on the analytical solutions for the differential equations of thick composite cylindrical shell taking into account shear deflection effects, the dynamic transfer matrix is built from which natural frequencies are easily calculated. A computer program is developed for performing numerical calculations and results from specific cases are presented. Numerical results of this work are compared with published analytical and Finite Element Method (FEM) results. Through different examples, advantages of CEM are confirmed: reduced size of model, higher precision, reduced time of computation and larger range of studied frequencies. 

Sign in / Sign up

Export Citation Format

Share Document