Dynamic stability of single-layer reticulated shell structures subjected to impact loads

doi:10.13465/j.cnki.jvs.2015.02.021

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Dynamic stability of single-layer reticulated shell structures subjected to impact loads
	Ma, Xiao-Tong 1,2; Wang, Xiu-Li 1,2
刊名	Zhendong yu Chongji/Journal of Vibration and Shock
	2015-01-28
卷号	34 期号:2 页码:119-124 and 133
关键词	Dynamic response Shells (structures) Stability Discriminant criteria Dynamic instability Dynamic response model Dynamic stability analysis Impact loads Non-linear finite elements Parametric -analysis Single-layer reticulated shells
ISSN号	10003835
DOI	10.13465/j.cnki.jvs.2015.02.021
英文摘要	Unlike for the case of seismic action, the conventional dynamic stability criteria are no longer applicable for the case of impact load. The basic theory of solving the impact problem and the problem of how to take resonably the value of impact load were expounded. According to the impact load characteristics, the dynamic stability criterion suitable for impact collision problem of single-layer reticulated shell structure was proposed. Taking a K6 single-layer reticulated shell model as an object, the dynamic stability analysis under impact was carried out by using the nonlinear finite element software ANSYS / LS-DYNA. The whole process of dynamic response under the action of different quality and speed of impact loads was analyzed. The critical energy region of dynamic instability of the single-layer reticulated shell under impact loads was obtained based on the dynamic response model. The dynamic stability under earthquake was also analysed in order to get the instability critical load which was then compared with that under impact action. From the aspects of rise-span ratio, span and bar cross-section, a parameter analysis was carried out. The results show the dynamic stability discriminant method for single-layer reticulated shell structures, which combines the dynamic response model with the impact energy is reasonable. The smaller the structure stiffness, the worse the dynamic stability under impact load. Increasing the main bar section is most conducive to improve the structure dynamic stability. ©, 2015, Chinese Vibration Engineering Society. All right reserved.
语种	中文
出版者	Chinese Vibration Engineering Society
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112314]
专题	土木工程学院
作者单位	1.Lanzhou University of Technology, School of Civil Engineering, Lanzhou; 730050, China; 2.Western Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Tech, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Ma, Xiao-Tong,Wang, Xiu-Li. Dynamic stability of single-layer reticulated shell structures subjected to impact loads[J]. Zhendong yu Chongji/Journal of Vibration and Shock,2015,34(2):119-124 and 133.
APA	Ma, Xiao-Tong,&Wang, Xiu-Li.(2015).Dynamic stability of single-layer reticulated shell structures subjected to impact loads.Zhendong yu Chongji/Journal of Vibration and Shock,34(2),119-124 and 133.
MLA	Ma, Xiao-Tong,et al."Dynamic stability of single-layer reticulated shell structures subjected to impact loads".Zhendong yu Chongji/Journal of Vibration and Shock 34.2(2015):119-124 and 133.