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Structural Engineering and Mechanics Volume 78, Number 5, June10 2021 , pages 557-572 DOI: https://doi.org/10.12989/sem.2021.78.5.557 |
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Vibration analysis of spherical sandwich panels with MR fluids core and magneto-electro-elastic face sheets resting on orthotropic viscoelastic foundation |
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Javad Kargar, Ali Ghorbanpour Arani, Ehsan Arshid and Mohsen Irani Rahaghi
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| Abstract | ||
| The current study considers free vibration of the spherical panel with magnetorheological (MR) fluids core and magneto-electro-elastic face sheets. The panel is subjected to electro-magnetic loads and also is located on an orthotropic visco-Pasternak elastic foundation. To describe the displacement components of the structure, the first-order shear deformation theory (FSDT) is used and the motion equations are extracted by employing Hamilton's principle. To solve the motion differential equations, Navier's method is selected as an exact analytical solution for simply supported boundary conditions. Effect of the most important parameters such as magnetic field intensity, loss factor, multi-physical loads, types of an elastic medium, geometrical properties of the panel, and also different material types for the face sheets on the results is considered and discussed in details. The outcomes of the present work may be used to design more efficient smart structures such as sensors and actuators. | ||
| Key Words | ||
| vibration analysis; sandwich structures; spherical panels; magnetorheological fluids; magneto-electro-elastic materials; elastic foundation | ||
| Address | ||
| Javad Kargar, Ali Ghorbanpour Arani, Ehsan Arshid and Mohsen Irani Rahaghi: Department of Solid Mechanics, Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran | ||