Journal of Science  and Technology of Composites

Journal of Science and Technology of Composites

Analysis of forced vibrations of truncated conical nanoshell containing fluid under harmonic load using modified couple stress theory

Document Type : Research Paper

Authors
1 Department of mechanical engineering, Islamic Azad University, Aligudarz branch, Aligudarz, Iran
2 Department of Mechanical Engineering, Aligudarz Branch, Islamic Azad University, Aligudarz, Iran.
Abstract
In the present research, the forced vibration of a truncated conical nanoshell in contact with fluid under harmonic load has been investigated. Classical plate theory along with modified stress couple theory has been used for shell analysis. The energy method and Hamilton's principle have been used to determine the governing equations. The applied pressure from the fluid to the shell has been determined by using the fluid potential function and using the velocity boundary conditions at the contact surface of the fluid and the shell. Also, to determine the vibration response, the method of hypothetical modes along with the Galerkin technique has been used. Finally, for a sample nanoshell, numerical results have been determined with the help of MATLAB software, and the numerical results of forced vibration and the effect of various parameters such as aspect ratios, cone apex angle, external force parameters, and fluid density on the vibration response of the system have been analyzed.
Keywords

Subjects


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