Dynamic analysis of elastic support beam subject to moving load

被引：2
|
作者：
Liu, Yang [1 ]
机构：
[1] PLA Univ Sci & Technol, Engn Inst Engn Corps, Nanjing 210007, Jiangsu, Peoples R China
来源：
ADVANCES IN CIVIL ENGINEERING II, PTS 1-4 | 2013年 / 256-259卷
关键词：
moving load; elastic support; dynamic response;
D O I：
10.4028/www.scientific.net/AMM.256-259.918
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The dynamics of elastic support beam are studied and the latent equation of the freely vibration modes of elastic bearing beam is deduced. The equation of the forced vibration of an elastically supported beam is obtained by the Lagrange equations and the influence of spring stiffness and moving load speed are analyzed. Calculation results show: the elastic supports have great effects on responses of beams, the dynamic amplification of deflections and stresses increases with the spring stiffness; the dynamic response of beam also increase with the increase of the speed of moving loads.
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页码：918 / 921
页数：4
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