CHAOTIC DYNAMIC ANALYSIS OF VISCOELASTIC SHALLOW SPHERICAL-SHELLS

Date

1992-08-03

Author

Karaesmen, Engin
ILERI, L
AKKAS, N

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This paper investigates the dynamic behaviour of a shallow, viscoelastic, spherical shell under a harmonic excitation. The time evolutions of the response of the corresponding nonlinear dynamical system are described by the phase portraits and the bifurcation of the parameter dependent system is studied numerically so as to identify qualitative changes in the phase portrait. The viscoelastic shell, having more than one equilibrium configuration for some problem parameters, shows periodic and/or random-like chaotic oscillations under the given excitation according to the dimensions of the attracting set. The occurrence and nature of the chaotic attractors are verified by evaluating Lyapunov exponents.

Subject Keywords

Mechanical Engineering, Modelling and Simulation, General Materials Science, Civil and Structural Engineering, Computer Science Applications

URI

https://hdl.handle.net/11511/63284

Journal

COMPUTERS & STRUCTURES

DOI

https://doi.org/10.1016/0045-7949(92)90471-b

Collections

Department of Civil Engineering, Article

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Citation Formats

E. Karaesmen, L. ILERI, and N. AKKAS, “CHAOTIC DYNAMIC ANALYSIS OF VISCOELASTIC SHALLOW SPHERICAL-SHELLS,” COMPUTERS & STRUCTURES, pp. 851–857, 1992, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/63284.