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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/24010

Title: Discretization Considerations in Moving Load Finite Element Beam Models
Authors: Joseph R. Rieker;Yih-Hwang Lin;Martin W. Trethewey
Contributors: NTOU:Department of Mechanical and Mechatronic Engineering
國立臺灣海洋大學:機械與機電工程學系
Date: 1996-01
Issue Date: 2011-10-20T08:09:20Z
Publisher: Finite Elements in Analysis and Design
Abstract: abstract:This paper investigates continuum discretization for finite element models analyzing a moving load on an elastic beam. Moving load analysis is shown to require accurate evaluation of beam deformations over the entire length of an element, and not only the nodes. Model accuracy is shown to be related to element interpolation which in turn directly affects three aspects of the moving load finite element model; (1) calculation of equivalent nodal reactions for the moving load; (2) calculation of transmitted forces from a moving sprung mass, and; (3) system responses for a moving load initially positioned within the support beam span. The analysis indicates that the model accuracy can be maintained at an acceptable level provided that, in general, the number of elements used to discretize the support structure continuum is at least two to eight times greater than the number used in static analysis.
Relation: 21(3), pp.129–144
URI: http://ntour.ntou.edu.tw/handle/987654321/24010
Appears in Collections:[機械與機電工程學系] 期刊論文

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