کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5021074 1369688 2018 10 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Determination of the excitation frequencies of laminated orthotropic non-homogeneous conical shells
کلمات کلیدی
Layered structures; Vibration; Analytical modelling; Numerical analysis;
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Determination of the excitation frequencies of laminated orthotropic non-homogeneous conical shells
چکیده انگلیسی

•Parametric vibration of non-homogeneous (NH) laminated conical shells is analyzed.•Basic relations and equations are derived using the Donnell-Mushtari shell theory.•Mathieu-type differential equation is obtained by using Galerkin method.•The excitation frequencies are determined using Bolotin's method.

The excitation frequencies of parametric vibration of laminated non-homogeneous orthotropic conical shells (LNHOCSs) under axial load periodically varying with time, are determined using the classical shell theory (CST). The basic equations are found using the Donnell-Mushtari shell theory and reduce to the Mathieu-Hill type differential equation, in which the instability is examined by the Bolotin method. To validate of current results was made a comparison with the previous studies. The effects of stacking sequences, axial load factors, non-homogeneity, as well as the variation of geometric characteristics on the backward and forward excitation frequencies (BFEFs) of conical shells are studied in detail.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 132, 1 January 2018, Pages 151-160
نویسندگان
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