سیویلیکا را در شبکه های اجتماعی دنبال نمایید.

Pull-in behavior analysis of vibrating functionally graded micro-cantilevers under suddenly DC voltage

Publish Year: 1393
Type: Journal paper
Language: English
View: 460

This Paper With 9 Page And PDF Format Ready To Download

Export:

Link to this Paper:

Document National Code:

JR_JACM-1-1_003

Index date: 30 May 2017

Pull-in behavior analysis of vibrating functionally graded micro-cantilevers under suddenly DC voltage abstract

The present research attempts to explain dynamic pull-in instability of functionally graded microcantilevers actuated by step DC voltage while the fringing-field effect is taken into account in the vibrational equation of motion. By employing modern asymptotic approach namely Homotopy Perturbation Method with an auxiliary term, high-order frequency-amplitude relation is obtained, then the influences of material properties and actuation voltage on dynamic pull-in behavior are investigated. It is demonstrated that the auxiliary term in the homotopy perturbation method is extremely effective for higher order approximation and two terms in series expansions are sufficient to produce an acceptable solution. The strength of this analytical procedure is verified through comparison with numerical results.

Pull-in behavior analysis of vibrating functionally graded micro-cantilevers under suddenly DC voltage Keywords:

Micro-actuator , Functionally graded material , Dynamic Pull-in instability , Homotopy Perturbation Method with an auxiliary term

Pull-in behavior analysis of vibrating functionally graded micro-cantilevers under suddenly DC voltage authors

Jamal Zare

National Iranian South Oil Company (NISOC), Ahvaz, Iran