کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
310077 513655 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlinear free vibration analysis of asymmetric thin-walled circularly curved beams with open cross section
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Nonlinear free vibration analysis of asymmetric thin-walled circularly curved beams with open cross section
چکیده انگلیسی

A finite element formulation is present for the nonlinear free vibration of thin-walled curved beams with non-symmetric open across section. The kinetic and potential energies are derived by the virtual principle. The energy functional includes the effect of flexural–torsional coupling, the torsion warping and the shear center location. For finite element analysis, cubic polynomials are utilized as the shape functions of the two nodal thin-walled curved elements. Each node possesses seven degrees freedom including the warping degree of freedom. The nonlinear eigenvalue problem has been solved by the direct iteration technique. The results are compared with those for straight beams as available in the literature. The results for nonlinear free vibration analysis of curved beams for various radii and subtended angle are presented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin-Walled Structures - Volume 46, Issue 10, October 2008, Pages 1107–1112
نویسندگان
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