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Advances in Nano Research Volume 10, Number 5, May 2021 , pages 481-491 DOI: https://doi.org/10.12989/anr.2021.10.5.481 |
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Nonlinear vibration of nanosheets subjected to electromagnetic fields and electrical current |
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Tayyeb Pourreza, Ali Alijani, Vahid A. Maleki and Admin Kazemi
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| Abstract | ||
| Graphene Nanosheets play an important role in nanosensors due to their proper surface to volume ratio. Therefore, the main purpose of this paper is to consider the nonlinear vibration behavior of graphene nanosheets (GSs) under the influence of electromagnetic fields and electrical current create forces. Considering more realistic assumptions, new equations have been proposed to study the nonlinear vibration behavior of the GSs carrying electrical current and placed in magnetic field. For this purpose, considering the influences of the magnetic tractions created by electrical and eddy currents, new relationships for electromagnetic interaction forces with these nanosheets have been proposed. Nonlinear coupled equations are discretized by Galerkin method, and then solved via Runge–Kutta method. The effect of different parameters such as size effect, electrical current magnitude and magnetic field intensity on the vibration characteristics of GSs is investigated. The results show that the magnetic field increases the linear natural frequency, and decreases the nonlinear natural frequency of the GSs. Excessive increase of the magnetic field causes instability in the GSs. | ||
| Key Words | ||
| Graphene nanosheets; vibration analysis; nonlinear frequency; magnetic traction; electric and eddy currents | ||
| Address | ||
| Tayyeb Pourreza, Vahid A. Maleki and Admin Kazemi: Department of Mechanical Engineering, Bandar Anzali Branch, Islamic Azad University, Bandar Anzali, Iran Vahid A. Maleki: Department of Mechanical Engineering, Bandar Anzali Branch, Islamic Azad University, Bandar Anzali, Iran/ Department of Mechanical Engineering, University of Tabriz, Tabriz, Iran | ||