文章基本信息

标题：Bending–torsional-coupled vibrations and buckling characteristics of single and double composite Timoshenko beams
本地全文：下载
作者：Ma’en S Sari ; Wael G Al-Kouz ; Rafat Al-Waked 等
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2019
卷号：11
期号：3
页码：1-16
DOI：10.1177/1687814019834452
出版社：Sage Publications Ltd.
摘要：The stability and free vibration analyses of single and double composite Timoshenko beams have been investigated. The closed-section beams are subjected to constant axially compressive or tensile forces. The double beams are assumed to be connected by a layer of elastic translational and rotational springs. The coupled governing partial differential equations of motion are discretized, and the resulted eigenvalue problem is solved numerically by applying the Chebyshev spectral collocation method. The effects of the elastic layer parameters, the axial forces, the slenderness ratio, the bending–torsional coupling, and the boundary conditions on the critical buckling loads, mode shapes, and natural transverse frequencies have been studied. A parametric study was performed, and the obtained results revealed different features, which hopefully can be useful for single- and double-beam-like engineering structures.
关键词：Free vibration;buckling;double-beam system;bending;torsion coupling;Chebyshev collocation method;eigenvalue problem