NUMERICAL STUDY ON PULL-IN INSTABILITY ANALYSIS OF GEOMETRICALLY NONLINEAR EULER-BERNOULLI MICRO BEAM BASED ON MODIFIED COUPLE STRESS THEORY

Y. Tadi Beni; M. Heidari

Makale detayları

NUMERICAL STUDY ON PULL-IN INSTABILITY ANALYSIS OF GEOMETRICALLY NONLINEAR EULER-BERNOULLI MICRO BEAM BASED ON MODIFIED COUPLE STRESS THEORY

Yazarlar:

Y. Tadi Beni | M. Heidari

Yayıncı:

Akdeniz University

Dergi:

International Journal of Engineering and Applied Sciences 2012 Vol.4 Issue 4, pp.41-53

Belge Tipi:

Makale

Yayın Tarihi:

11/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000459688

Sıklık:

Üç Aylık

eISSN:

1309-0267

Özet:

 

In this paper, the static pull-in instability of beam-type micro-electromechanical systems (MEMS) is theoretically investigated. Two engineering cases including cantilever and double cantilever micro-beam are considered. Considering the mid-plane stretching as the source of the nonlinearity in the beam behavior, a nonlinear sizedependent Euler-Bernoulli beam model is used based on a modified couple stress theory, capable of capturing the size effect. By selecting a range of geometric parameters such as beam lengths, width, thickness, gaps and size effect, we identify the static pull-in instability voltage. A MAPLE package is employed to solve the nonlinear differential governing equations to obtain the static pull-in instability voltage of microbeams. The results reveal significant influences of size effect and geometric parameters on the static pull-in instability voltage of MEMS.

Makale detayları

NUMERICAL STUDY ON PULL-IN INSTABILITY ANALYSIS OF GEOMETRICALLY NONLINEAR EULER-BERNOULLI MICRO BEAM BASED ON MODIFIED COUPLE STRESS THEORY

Yazarlar: Y. Tadi Beni | M. Heidari

Yayıncı: Akdeniz University

Dergi: International Journal of Engineering and Applied Sciences 2012 Vol.4 Issue 4, pp.41-53

Belge Tipi: Makale

Yayın Tarihi: 11/2012

Belge Dili: Türkçe

Document ID (Org No.): 2000459688

Sıklık: Üç Aylık

eISSN: 1309-0267

Sayı

Yazarlar:

Y. Tadi Beni | M. Heidari

Yayıncı:

Akdeniz University

Dergi:

International Journal of Engineering and Applied Sciences 2012 Vol.4 Issue 4, pp.41-53

Belge Tipi:

Makale

Yayın Tarihi:

11/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000459688

Sıklık:

Üç Aylık

eISSN:

1309-0267