Buckling of Doubly Clamped Nano-Actuators in General form Through Spectral Meshless Radial Point Interpolation (SMRPI)

Journal of Nanoanalysis

مقاله 9، دوره 4، شماره 1، خرداد 2017، صفحه 76-84   

نوع مقاله: Original Research Paper

شناسه دیجیتال (DOI): 10.22034/jna.2017.01.009

نویسندگان

Hedayat Fatahi^{* 1}؛ Elyas Shivanian²؛ S. J. Hosseini Ghoncheh^{3، 4}

¹Department of Mathematics, Baneh Branch, Islamic Azad University, Baneh, Iran

²Department of Applied Mathematics, Imam Khomeini International University, Qazvin, Iran

³Young Researchers & Elite Club, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran

⁴Department of Basic Sciences, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran

چکیده

The present paper is devoted to the development of a kind of spectral meshless radial point interpolation (SMRPI) technique in order to obtain a reliable approximate solution for buckling of nano-actuators subject to different nonlinear forces. To end this aim, a general type of the governing equation for nano-actuators, containing integro-differential terms and nonlinear forces is considered. This general type for the nano-actuators is a non-linear fourth-order Fredholm integro-differential boundary value problem. The point interpolation method with the help of radial basis functions is used to construct shape functions which play as basis functions in the frame of SMRPI. In the current work, the thin plate splines (TPSs) are used as radial basis functions. This numerical based technique enables us to overcome all kind of nonlinearities in the mentioned boundary value problem and then to obtain fast convergent solution. Thus, it can facilitate the design of nano-actuators.

کلیدواژه‌ها

Nano-actuator, Spectral meshless radial point interpolation (SMRPI) method؛ Radial Basis Function؛ FREDHOLM INTEGRAL EQUATION

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