سیویلیکا را در شبکه های اجتماعی دنبال نمایید.

Nonlinear Dynamic Analysis of Cracked Micro-Beams Below and at the Onset of Dynamic Pull-In Instability

سال انتشار: 1397
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 504

فایل این مقاله در 14 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

JR_JSMA-10-1_008

تاریخ نمایه سازی: 12 اسفند 1398

چکیده مقاله Nonlinear Dynamic Analysis of Cracked Micro-Beams Below and at the Onset of Dynamic Pull-In Instability

In this paper, the effect of the crack on dynamic behavior of cracked micro-beam in the presence of DC and AC loads are investigated. By applying the residual axial stress and fringing field stress, a nonlinear analytical model of cracked micro-beam is presented and crack is modeled by a massless rotational spring. The governing equation of the system is solved using Galerkin procedure and shooting method. The equilibria curve and dynamic response of cracked cantilever and clamped-clamped micro-beam are extracted below and at the onset of the dynamic pull-in instability. The results show that the behavior of cracked micro-beam is different from ordinary cracked beam due to nonlinear effects. For a fixed relative crack location, increasing the crack depth causes increasing in the resonance amplitude and reduction in the resonance frequency below dynamic pull-in instability. Also, in cracked cantilever micro-beams, by approaching the crack to fixed end, the resonance frequency reduces and the resonance amplitude increases. In cracked clamped-clamped micro-beam, trend of variations of resonance frequency and resonance amplitude against the crack location is not regular. At the onset pull-in instability, the presence of the crack causes cyclic-fold bifurcation points to appear at the lower frequency. Therefore, it causes early pull-in phenomenon or unwanted abrupt change at the micro-beam behavior. The achievement of this study is simulation of the response of the faulty low-voltage switch and MEMS resonators for different severity of crack at the onset of dynamic pull-in phenomenon.  

کلیدواژه های Nonlinear Dynamic Analysis of Cracked Micro-Beams Below and at the Onset of Dynamic Pull-In Instability:

Micro-electromechanical systems ، Crack ، Pull-in phenomenon ، Nonlinear dynamics ، Bellow and at the onset of pull-in instability

نویسندگان مقاله Nonlinear Dynamic Analysis of Cracked Micro-Beams Below and at the Onset of Dynamic Pull-In Instability

R Hassannejad

Department of Mechanical Engineering, University of Tabriz, Tabriz, Iran

Sh Amiri Jahed

Department of Mechanical Engineering, University of Tabriz, Tabriz, Iran

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
Vardan V. M., Vinoy K. J., Jose K. A., 2003, ...
Younis M. I., Nayfeh A. H., 2009, A study of ...
Rezazadeh G., Tahmasebi A., Ziaei-rad S., 2009, Nonlinear electrostatic behavior ...
Valilou S., Jalilpour M., 2012, Frequency response analysis of a ...
Osterberg P. M., Senturia S. D., 1997, M-TEST: A test ...
Zhang Y., Zhao Y., 2006, Numerical and analytical study on ...
Rezazadeh G., Tahmasebi A., Ziaei-rad S., 2009, Nonlinear electrostatic behavior ...
Mojahedi M., Moghimi zand M., Ahmadian M.T, 2010, Static pull-in ...
Wang Y.G., Lin W.H., Feng Z. J., Li X. M., ...
Mohammad T. F., Ouakad H. M., 2016, Static, eigenvalue problem ...
Younis M.I., 2015, Analytical expressions for the electrostatically actuated curled ...
Mohammad-Alasti B., Rezazadeh G., Abbasgholipour M., 2012, Effect of temperature ...
Nayfeh A.H., Younis M.I., Abdel-Rahman E.M., 2007, Dynamic pull-in phenomenon ...
Rezazadeh G., Fathalilou M., Sadeghi M., 2011, Pull-in voltage of ...
Sedighi H.M., Shirazi K.H., Changizian M., 2015, Effect of the ...
Muhlstein C., Brown S., 1997, Reliability and fatigue testing of ...
Motallebi A., Fathalilou M., Rezazadeh G., 2012, Effect of the ...
Zhou H., Zhang W. M., Peng Z. K., Meng G., ...
Sourki R., Hoseini S.A.H., 2016, Free vibration analysis of size-dependent ...
Younis M.I., Abdel-Rahman E.M., Nayfeh A.H., 2002, Static and dynamic ...
Abdel-Rahman E.M., Younis M.I., Nayfeh A.H. 2002, Characterization of the ...
Lin H. P., Chang S. C., Wu J. D., 2002, ...
Younis M.I., 2010, MEMS Linear and Nonlinear Statics and Dynamics, ...
نمایش کامل مراجع