Article Details


Oleh   Hamid M . Sedighi [-]
Kontributor / Dosen Pembimbing : Kourosh H. Shirazi
Jenis Koleksi : Jurnal elektronik
Penerbit : Lain-lain
Fakultas :
Subjek :
Kata Kunci : homotopy perturbation method, frequency-amplitude relationship, double-sided actuated nano-switch, dynamic pull-in instability, homoclinic orbit, heteroclinic orbit
Sumber : ScienceDirect, Acta Mechanica Solida Sinica, Vol. 28, No. 1, February, 2015
Staf Input/Edit : Irwan Sofiyan  
File : 1 file
Tanggal Input : 2019-08-14 11:11:25

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2015 EJRNL PP Hamid M . Sedighi 1.pdf ]


A nonlinear frequency-amplitude relation is developed to investigate the vibrational amplitude effect on the dynamic pull-in instability of double-sided-actuated nano-torsional switches. The governing equation of a nano-electro-mechanical system pre-deformed by an electric field contains the quintic nonlinear term. The influences of basic parameters on the pull-in instability and natural frequency are investigated using a powerful analytical approach called the homotopy perturbation method. It is demonstrated that two terms in series expansion are sufficient to produce an acceptable solution. The numerical results obtained have verified the soundness of the asymptotic procedure. The phase portraits of the double-sided nano-torsionalactuator exhibit periodic, homoclinic and heteroclinic orbits.