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Tuesday, July 9 • 16:30 - 16:50
FREE VIBRATION OF ASYMMETRIC BI-STABLE COMPOSITE RECTANGULAR PANEL CLAMPED AT CENTRE POINT

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This paper investigates the free vibration of an asymmetric bi-stable composite rectangular panel reinforced with carbon fiber, which is clamped at the center point. The zero displacement and zero rotation constraints at the clamped location are enforced by the method of Lagrange multiplier. The mode shapes are expanded in terms of Chebyshev polynomial functions in the Rayleigh-Ritz method, and the natural frequencies of the bi-stable composite panel are obtained. The convergence analysis is studied, and the accuracy of the proposed model is verified by comparing with the literature results and ANSYS data. The effects of frequency parameters such as the thickness, the layer number, and the length-width ratio on the vibration characteristics for the asymmetric bi-stable composite rectangular panel are investigated in detail. In addition, the natural characteristics of the bi-stable composite rectangular panel are studied by discussing the relation between each of the two-stable-state's mode shapes and natural frequencies.

Moderators
EP

Elsa Piollet

Dr, Polytechnique Montréal
avatar for Mohammad Rafiee

Mohammad Rafiee

Postdoctoral Fellow, Polytechnique Montréal
Mohammad Rafiee received his Ph.D. degree in Mechanical Engineering from the University of Ottawa in 2018. Currently, he is a Postdoctoral Fellow at Polytechnique Montreal in Canada. His research interests are primarily focused on the development of advanced composite materials, smart... Read More →
AR

Annie Ross

Professor, Polytechnique Montreal

Authors

Tuesday July 9, 2019 16:30 - 16:50 EDT
St-Laurent 8
  T07 Struct. dyn. & nonlin. vib., RS02 Vibr & cntrl of nonlin mech syst

Attendees (5)