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Wednesday, July 10 • 17:30 - 17:50
RADIATIVE ENERGY TRANSFER MODEL FOR PRESTRESSED ORTHOTROPIC PLATE ON VISCO-ELASTIC FOUNDATION

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The dynamic response of composite plate is an interesting problem in several fields of structural, vehicle, mechanical and aerospace engineering. In this study, the numerical simulation model for high frequency vibration pre-stressed orthotropic plate on visco-elastic foundation is established by developing the Radiative Energy Transfer Method. For orthotropic plate system, the fomula of the energy transfer depends not only on the distance between the observation point and source point, but also on the head angle of the wave. And the in-plane pre-stresses and visco-elastic foundation applied on the orthotropic plate can change the bending stiffness, wave number, group velocity and input power. In addition, some numerical simulations are performed for a typical tyre model to verify its validation. The simulation results, such as energy density distribution and energy flow field, are compared with the traditional modal superposition solutions for various frequencies and damping loss factors. We analyze the influence of elastic stiffness and pre-stresses on the dynamic response of the orthotropic plate by the proposed model.

Moderators
avatar for Simon Jones

Simon Jones

Associate Professor, Rose-Hulman Institute of Technology
Professional interests include undergraduate engineering education, finite element modeling, ground-borne vibrations, vibrations of musical instruments, and dynamics of toys.
GM

Guilhem Michon

Professor, ISAE-SUPAERO

Authors

Wednesday July 10, 2019 17:30 - 17:50 EDT
St-Laurent 7
  T07 Struct. dyn. & nonlin. vib., RS03 Struct ac & vibr

Attendees (4)