کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1705548 1012435 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pull-in instability and free vibration of electrically actuated poly-SiGe graded micro-beams with a curved ground electrode
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Pull-in instability and free vibration of electrically actuated poly-SiGe graded micro-beams with a curved ground electrode
چکیده انگلیسی

This paper investigates the pull-in instability and free vibration of functionally graded poly-SiGe micro-beams under combined electrostatic force, intermolecular force and axial residual stress, with an emphasis on the effects of ground electrode shape, position-dependent material composition, and geometrically nonlinear deformation of the micro-beam. The differential quadrature (DQ) method is employed to solve the nonlinear differential governing equations to obtain the pull-in voltage and vibration frequencies of the clamped poly-SiGe micro-beams. The present analysis is validated through direct comparisons with published experimental results and excellent agreement has been achieved. A parametric study is conducted to investigate the effects of material composition, ground electrode shape, axial residual stress and geometrical nonlinearity on the pull-in voltage and frequency characteristics.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 36, Issue 5, May 2012, Pages 1875–1884
نویسندگان
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