کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4911868 1428528 2017 45 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On natural frequencies of Levy-type thick porous-cellular plates surrounded by piezoelectric layers
ترجمه فارسی عنوان
در فرکانس های طبیعی صفحات ضخیم سلولی ضخیم لووی که توسط لایه های پیزوالکتریک احاطه شده اند
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
In this paper, an analytical solution for free vibration of rectangular porous-cellular plates enclosed by piezoelectric layers is presented by using third-order shear deformation plate theory. Using Hamilton's principle and Maxwell equation, the governing equations of the system are obtained for both closed and open circuit conditions. Due to the coordinate dependency of mechanical properties of porous materials, the governing equations of motion are highly coupled. By using four auxiliary functions, these equations convert into two independent partial differential equations. The decoupled equations are solved analytically by employing Levy-type boundary conditions for the plate. Finally, after validation of the obtained results, the effects of various parameters such as porosity and geometrical dimensions on the natural frequencies of plate are investigated for different electrical and mechanical boundary conditions. It is found that the natural frequencies of the plate decrease as the coefficient of plate porosity increases. Also, the piezoelectric layers cause the natural frequency of the plate to increase in various vibrating modes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 179, 1 November 2017, Pages 340-354
نویسندگان
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