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International Journal of Engineering، جلد ۲۷، شماره ۳، صفحات ۳۷۵-۳۸۴
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Effect of Length-scale Parameter on Pull-in Voltage and Natural Frequency of a Micro-plate |
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| چکیده انگلیسی مقاله |
This paper deals with the effect of the intrinsic material length-scale parameter on the stability and natural frequency of a rectangular micro-plate for two different cases; fully clamped and fully simply supported. A variational formulation based on Hamilton’s principle and the modified couple stress theory is used to obtain the nonlinear governing equation of a micro-plate incorporating the stretching effect. In the static case, the nonlinear governing equation is solved using the step-by-step linearization method (SSLM) and in the dynamic case, is integrated using fourth-ordered Runge-Kutta method. The static and dynamic pull-in parameters, limiting the stability regions of capacitive MEMS devices, are calculated and compared to those obtained by the classical theory. The numerical results reveal that the intrinsic size dependence of materials is more significant for smaller thicknesses and in this case, the stretching effect can be neglected. |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
Ghader rezazadeh |
mechanical engineering, Urmia university
Kaveh Rashvand |
Mechanical Engineering, Urmia University
Hadi Madinei |
Mechanical Engineering, Urmia University
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| نشانی اینترنتی |
http://www.ije.ir/article_72264_f527b57359d1be36ad47220a29d712e3.pdf |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/409/article-409-2062759.pdf |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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