Non-linear dynamics of flexible shell structures

被引：0
|
作者：
Chrós´cielewski, Jacek [1 ]
Makowski, Jerzy [1 ]
Pietraszkiewicz, Wojciech [1 ]
机构：
[1] Technical University of Gdansk, Div. of Bridges ul. Narutowicza, 80-952 Gdan´sk, Poland
来源：
Computer Assisted Mechanics and Engineering Sciences | 2002年 / 9卷 / 03期
关键词：
Algorithms - Approximation theory - Cantilever beams - Computer simulation - Dynamics - Finite element method - Flexible structures - Initial value problems - Interpolation - Kinetic energy - Potential energy - Shells (structures);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The initial-boundary value problem in the weak form is formulated for the general six-field non-linear theory of branched shell structures. The extended time-stepping algorithm of the Newmark type is worked out for the non-linear dynamic analysis on the configuration space containing the rotation group SO(3). Within the finite element approximation, an accurate indirect C0 interpolation procedure on SO(3) with a transport of approximation domain is developed. Numerical simulations by the finite element method of 2D and 3D large overall motions of several flexible elastic shell structures are presented. It is shown that values of potential and kinetic energies may oscillate in time, but the total energy remains conserved during the free motion of the structures in space.
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页码：341 / 357
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