Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2011-05-30

Journal: MATHEMATICAL METHODS IN THE APPLIED SCIENCES

Included Journals: EI、SCIE、Scopus

Volume: 34

Issue: 8

Page Number: 996-1005

ISSN: 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.