A single and double mode approach to chaotic vibrations of a cylindrical shell with large deflection

Article type: Research Article

Authors: Dai, Liming | Han, Qiang | Dong, Mingzhe

Affiliations: Industrial Systems Engineering, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, Canada S4S0A2 | Department of Mechanics, College of Traffic and Communications, South China University of Technology, Guangzhou, China 510640 | Petroleum Systems Engineering, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, Canada S4S0A2

Note: [] Corresponding author. E-mail: dailimli@uregina.ca

Abstract: The chaotic vibrations of a cylindrical shell of large deflection subjected to two-dimensional exertions are studied in the present research. The dynamic nonlinear governing equations of the cylindrical shell are derived on the basis of single and double mode models established. Two different types of nonlinear dynamic equations are obtained with varying dimensions and loading parameters. The criteria for chaos are determined via Melnikov function for the single mode model. The chaotic motion of the cylindrical shell is investigated and the comparison between the single and double mode models is carried out. Results of the research show that the single mode method usually used may lead to incorrect conclusions under certain conditions. Double mode or higher order mode methods should be used in these cases.

Keywords: Galerkin principle, melnikov function, chaos, nonlinear dynamics, cylindrical shell, single and double mode methods, numerical analysis

Journal: Shock and Vibration, vol. 11, no. 5-6, pp. 533-546, 2004