Finite element analysis of dynamic stability of skeletal structures under periodic loading

Abstract：This paper addresses the dynamic stability problem of columns and frames subjected to axially applied periodic loads. Such a structure can become unstable under certain combinations of amplitudes and frequencies of the imposed load acting on its columns/beams. These are usually shown in the form of plots which describe regions of instability. The finite element method (FEM) is used in this work to analyse dynamic stability problems of columns. Two-noded beam elements are used for this purpose.The periodic loading is decomposed into various harmonics using Fourier series expansion. Computer codes in C++ using object oriented concepts are developed to determine the stability regions of columns subjected to periodic loading. A number of numerical examples are presented to illustrate the working of the program. The direct integration of the equations of motions of the discretised system is carried out using Newmarks method to verify the results. 作者： Author： THANA Hemantha Kumar  AMEEN Mohammed 作者單位： Department of Civil Engineering, National Institute of Technology, Calicut, Kerala 673601, India 期 刊： 浙江大學學報A（英文版）   ISTICEISCI Journal： JOURNAL OF ZHEJIANG UNIVERSITY SCIENCE A 年，卷(期)： 2007, 8(2) 分類號： U448.25 Keywords： Finite element analysis    Dynamic stability    Mathieu-Hill equation    機標分類號： O34 V21 機標關鍵詞： dynamic stability    finite element method    stability problem    object oriented    Fourier series    beam elements    used in    form of 基金項目：

【Finite element analysis of dynamic s】相關文章：

Interval Finite Element Analysis of Wing Flutter05-01

Dynamic Analysis of Contact Bounce of Aerospace Relay Based on Finite Difference Method04-28

An efficient wavelet finite element method in fault prognosis of incipient crack04-29

Dynamic analysis of stochastic delayed cellular neural networks05-02

Finite element formulation of active constraining layer damping plate using laminate theory04-27

Design and Reliability Analysis of DP-3 Dynamic Positioning Control Architecture05-07

Experimental and discrete element numerical analysis of side slope instability induced by fissure water underlying imper04-28

Dynamic Response Analysis of Bird Strike on Aircraft Windshield Based on Damage-modified Nonlinear Viscoelastic Constitu04-30

Low-velocity Impact Damage Analysis of Composite Laminates Using Self-adapting Delamination Element Method04-28

Static/dynamic Analysis of Functionally Graded and Layered Magneto-electro-elastic Plate/pipe under Hamiltonian System05-02