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Nonlinear Modal Interactions of a Parametrically Excited Composite Column

[+] Author Affiliations
Jerzy Warminski, Andrzej Teter

Lublin University of Technology, Lublin, Poland

Paper No. DETC2017-67249, pp. V006T10A041; 7 pages
doi:10.1115/DETC2017-67249
From:
  • ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 6: 13th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
  • Cleveland, Ohio, USA, August 6–9, 2017
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5820-2
  • Copyright © 2017 by ASME

abstract

Nonlinear dynamics of a composite column loaded by axial periodic force is presented in the paper. The simply supported channel column is made of several layers of a laminate with an general arrangement, leading to mechanical deformation couplings. A reduced model of the column is represented by a set of nonlinear equations which includes geometric nonlinear terms and parametric excitation. For the selected configuration of the composite structure parametric instability zones and vibration modes coupling occur. In contrast to isotropic materials, a modification of the reinforcing fibres layout results in a change of structure dynamic properties and a location of parametric resonance zones. Furthermore, buckling phenomenon may occur through various scenarios, by the global or local mode activation. The effect of the composite configuration on the principal parametric resonance zones is presented.

Copyright © 2017 by ASME

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