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所属单位：航空学院
发表刊物：ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
关键字：Uniform beam Dynamic analysis Scaled boundary finite element method Higher order spectral element
摘要：A unified technique based on the scaled boundary finite element method is presented in this paper to analyze the bending, free vibration and forced vibration of thin to moderately thick beams with constant material properties and rectangular cross sections. The structure model is treated as a plane stress problem and the principle of virtual work involving the inertial force is applied to derive the scaled boundary finite element equation. Higher order spectral elements are used to discretize the longitudinal dimension and the solution through the thickness is expressed analytically as a Pade expansion. A variable transformation technique facilitates the development of the dynamic stiffness matrix, which leads to the static stiffness and mass matrices naturally. Rayleigh damping and Newmark-beta method are employed to perform the forced vibration analysis. Numerical examples covering static and dynamic analyses validate the excellent performance and capability of this approach. (C) 2017 Elsevier Ltd. All rights reserved.
ISSN号：0955-7997
是否译文：否
发表时间：2017-09-01
合写作者：Li, Jianghuai,Ning, Shaowu
通讯作者：史治宇