Title

Nonlinear vibration of composite shell subjected to resonant excitations

Authors

Authors

J. F. Nayfeh;N. J. Rivieccio

Comments

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Abbreviated Journal Title

J. Aerosp. Eng.

Keywords

CURVED ORTHOTROPIC PANELS; FIBER-REINFORCED TORI; Engineering, Aerospace; Engineering, Civil

Abstract

Analysis of the vibration of a shallow, simply supported, nonsymmetric unbalanced cross-ply laminated, circular cylindrical composite shell is presented. The subject is particularly relevant, considering the widespread use of cylindrical shell structures in engineering applications. This research applies the discretized Lagrangian/method of multiple scales solution technique. The Donnell shallow shell strain-displacement relations and the single-mode displacement field from the linear eigenvalue problem are applied. The system Lagrangian is developed and integrated over the spatial domain and then substituted into Lagrange's equation. The resulting equation of motion is a second-order temporally nonlinear ordinary differential equation in the form of the Duffing oscillator. The natural frequency, the coefficient of the cubic nonlinearity, and the strength of the nonlinearity are investigated. The method of multiple scales is applied to the nonlinear equation of motion in order to analyze the frequency response. Primary resonance, subharmonic resonance, and superharmonic resonance are analyzed.

Journal Title

Journal of Aerospace Engineering

Volume

13

Issue/Number

2

Publication Date

1-1-2000

Document Type

Article

Language

English

First Page

59

Last Page

68

WOS Identifier

WOS:000086105300004

ISSN

0893-1321

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