[1]吴 晓,杨立军,黄 翀.双模量圆板中心在冲击荷载作用下的弹性计算[J].西安建筑科技大学学报:自然科学版,2012,44(05):614-619.[doi:10.15986/j.1006-7930.2012.05.002]
　WU Xiao,YANG Li-jun,HUANG Chong.Elastic dynamic calculation for bimodulous circular plate under the condition of impact load[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2012,44(05):614-619.[doi:10.15986/j.1006-7930.2012.05.002]
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双模量圆板中心在冲击荷载作用下的弹性计算()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
44
期数:
2012年05期
页码:
614-619
栏目:
出版日期:
2012-10-31

文章信息/Info

Title:
Elastic dynamic calculation for bimodulous circular plate under the condition of impact load
文章编号:
1006-7930(2012)05-0614-06
作者:
吴 晓; 杨立军; 黄 翀
(湖南文理学院土木建筑工程学院,湖南 常德 415000)
Author(s):
WU Xiao;  YANG Li-jun;  HUANG Chong
(Dept. of Civil and Architectural Engineering, Hunan University of Arts and Science, Changde 415000, China)
关键词:
双模量; 圆板; 冲击荷载; 动力因数
Keywords:
bimodulous;  circular plate;  impact load;  dynamic factor
分类号:
O321
DOI:
10.15986/j.1006-7930.2012.05.002
文献标志码:
A
摘要:
采用弹性理论建立了双模量圆板在外荷载作用下的静力平衡方程,利用此静力平衡方程确定了双模量圆板的中性面位置,建立了双模量圆板在外荷载作用下的弯曲微分方程,并求得了圆板在集中荷载作用下的静力挠度表达式.在此基础上,考虑了冲击物和被冲击双模量圆板的质量影响,采用能量法及相当质量法将具有分布质量的双模量圆板转化为只有一个集中质量的弹性系统,从而导出双模量圆板中心在冲击荷载作用下的动力因数.算例分析表明,冲击重物的质量与冲击重物冲击前瞬间具有的速度对动力因数的影响要比其他因素大些
Abstract:
Static equilibrium equation for bimodulous circular plate under the condition of external loads was established by using elastic theory. The location of neutral plane in bimodulous circular plate was determined by the utilization of static equilibrium equation. The bending deformation differential equations for bimodulous circular plate was derived, and the static deflection expression for bimodulous circular plate under the condition of impact load was acquired. On this basis, the influence of the mass of impact objects and shocked bimodulous circular plate were considered, the bimodulous circular plate with distributed mass was transformed into a flexible system with only a concentrated mass, and the dynamic factor for bimodulous circular plate under the condition of impact load was derived. The computational result indicates that the mass and the momentary speed before the shocked mement of impact objects had more influence on dynamic factor than other factors

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备注/Memo

备注/Memo:
收稿日期:2012-04-18 修改稿日期:2012-10-08
基金项目:湖南省“十二五”重点建设学科(机械设计及理论)和湖南省教育厅项目(11A081)
作者简介:吴 晓(1965-),男,湖南常德人,教授,主要从事结构振动理论研究
更新日期/Last Update: 2015-09-01