ANALYSIS OF PARAMETRICALLY EXCITED LAMINATED SHELLS

被引：22
|
作者：
CEDERBAUM, G
机构：
[1] The Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer Sheva
来源：
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 1992年 / 34卷 / 03期
关键词：
D O I：
10.1016/0020-7403(92)90074-Q
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The dynamic stability of a shear-deformable circular cylindrical shell subjected to a periodic axial loading P(t) = P(s) + P(d) cos omega-t is investigated. The simply-supported laminated shell of finite length is analyzed within Love's first-approximation theory, with the addition of transverse shear deformation and rotary inertia. Using the method of multiple scales, analytical expressions for the instability regions are obtained at omega = OMEGA(j) +/- OMEGA(i), where OMEGA(i) are the natural frequencies of the shell. Yet, it is shown that instability cannot occur for the case omega = OMEGA(j) - OMEGA(i) due to the symmetric properties of the problem. It is also shown that, besides the principal instability region at omega = 2-OMEGA-1 (OMEGA-1 is the fundamental frequency), other cases of omega = OMGEGA(i) + OMEGA(j) can be of major importance and yield a significantly enlarged instability region.
引用
收藏
页码：241 / 250
页数：10
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