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Indexed by:期刊论文

Date of Publication:2011-05-30

Journal:MATHEMATICAL METHODS IN THE APPLIED SCIENCES

Included Journals:Scopus、SCIE、EI

Volume:34

Issue:8

Page Number:996-1005

ISSN No.:0170-4214

Key Words:dynamic analysis; adaptive algorithm; simply supported beam; moving load; finite element method

Abstract:This paper presents an adaptive algorithm in the time domain for the dynamic analysis of a simply supported beam subjected to the moving load and moving vehicle with/without varying surface roughness. By expanding variables at a discretized time interval, a coupled spatial-temporal problem can be converted into a series of recursive space problems that are solved by finite element method (FEM), and a piecewised adaptive computing procedure can be carried out for different sizes of time steps. The proposed approach is numerically verified via the comparison with analytical and the Runge-Kutta method-based solutions, and satisfactory results have been achieved. Copyright (C) 2011 John Wiley & Sons, Ltd.