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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/13256

Title: Investigation of the dynamic behavior of a nonlinear semi-definite mechanical system
Authors: Al-Saif, K.
Keywords: Chaos; Dynamic behavior; Hinged plates; Semi-definite system
Issue Date: 2001
Publisher: ASME
Citation: Proceedings of the ASME Design Engineering Technical Conference Volume 6 A, 2001, Pages 433-444
Abstract: The study reported in this paper investigates the dynamic behavior of a semi-definite nonlinear mechanical structure. It consists of a cantilever beam with uniform thickness subjected to a harmonic excitation at the base; two hinged rigid plates are attached at its free end. The plates can execute oscillations in the horizontal plane without restoring moments. The friction at the hinges is modeled as a Coulomb type with a nonlinear friction coefficient. The excitation parameters at which chaotic motion of the hinged plates is initiated are investigated experimentally as well as numerically. It is shown that the prediction of the dynamic response of this semi-definite system is not accurate in the resonance region. The prediction fails due to the existence of chaotic behavior in that region. The measurement of the dynamic response of the system is conducted using a He-Ne laser system. The numerical results are found to be in a good agreement with the experimental findings.
URI: http://hdl.handle.net/123456789/13256
Appears in Collections:College of Engineering

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