Finite element studies on free vibration of laminated composite cylindrical skew panels

• Autorzy: Srinivasa C. V. , Suresh Y. J. , Prema Kumar W. P.

Identyfikatory

DOI

10.2478/ijame-2014-0012

• Języki publikacji: EN

Abstrakty

EN

This paper presents the finite element studies on free vibration of isotropic and laminated composite cylindrical skew panels. The analysis is performed using CQUAD4 and CQUAD8 elements of MSC/NASTRAN. The effects of the panel angle, skew angle, aspect ratio and length-to-thickness-ratio on fundamental frequency of isotropic cylindrical skew panels are studied. The effects of additional parameters such as the fiber orientation angle, numbers of layers and stacking sequence on the fundamental frequency of antisymmetric composite laminates are also studied. It is found that the CQUAD8 element yields better results than the CQUAD4 element in the validation and convergence studies. The CQUAD8 element is employed for the remaining part of the studies. The fundamental frequencies are found to increase with the panel angle and skew angle. When the number of layers in the laminate is large, the variation of the fundamental frequency with the number of layers is not appreciable. The boundary conditions are found to have a significant influence on the fundamental frequency.

Słowa kluczowe

EN

cylindrical skew panel; panel angle; skew angle; antisymmetric laminates; free vibration; finite element; fundamental frequency

PL

panel cylindryczny; laminat; wolne wibracje; element skończony; częstotliwość podstawowa

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2014
• Tom: Vol. 19, no. 1
• Strony: 165--180
• Opis fizyczny: Bibliogr. 4 poz., rys., tab., wykr.

Twórcy

autor

Srinivasa C. V.

• Department of Mechanical Engineering GM Institute of Technology Davangere, Karnataka, INDIA-577006

autor

Suresh Y. J.

• Department of Mechanical Engineering J.N.N. College of Engineering Shivamogga, Karnataka, INDIA-577204

autor

Prema Kumar W. P.

• Department of Civil Engineering Reva Institute of Technology and Management Bangalore, Karnataka, INDIA-560064

Bibliografia

• Gulshan Taj M.N.A. and Anupam C. (2013): Dynamic response of functionally graded skew shell panel. - Latin American Journal of Solids and Structures, vol.10, pp.1243-1266.
• Jones R.M. (1975): Mechanics of Composite Materials. - New York: McGraw-Hill.
• Kandasamy S. and Singh A.V. (2006): Free vibration analysis of skewed open circular cylindrical shells. - Journal of Sound and Vibration, vol.290, pp.1100-1118.
• Salil H. (2008): Free vibration of composite skewed cylindrical shell panel by finite element method. - Journal of Sound and Vibration, vol.311, pp.9-19.