Numerical analysis of bifurcation buckling for rotationally periodic structures under rotationally periodic loads

1998 ◽  
Vol 14 (1) ◽  
pp. 53-64 ◽  
Author(s):  
Li Jianzhong ◽  
Liu Yinghua ◽  
Cen Zhangzhi ◽  
Xu Bingye
Keyword(s):  
Numerical Analysis ◽  
Periodic Structures ◽  
Bifurcation Buckling

scholarly journals Efficient Numerical Analysis of a Periodic Structure of Multistate Unit Cells

2014 ◽  
Vol 2014 ◽  
pp. 1-6
Author(s):  
Ladislau Matekovits ◽  
Karu P. Esselle ◽  
Mirko Bercigli ◽  
Rodolfo Guidi
Keyword(s):  
Computational Complexity ◽  
Numerical Analysis ◽  
Single Unit ◽  
Microstrip Line ◽  
Periodic Structures ◽  
Unit Cell ◽  
Active Structure ◽  
Unit Cells ◽  
Synthetic Function

Application of the synthetic function expansion (SFX) algorithm to the analysis of active 1- and 2D periodic structures is presented. The single unit cell consisting of a microstrip line loaded by patches positioned below the line is turned into an active structure by inserting a pair of 2 switches to the two ends of each patch; the states of the pair of switches are changed contemporaneously. Variation of the states of the switches modifies the current distribution on the structure. The tunable multistate unit cell is arranged in 24-, 120-, and 9 × 24 element configurations and numerically analyzed. The computational complexity required for the characterization of the large number of possible configurations is lightened by the use of the proposed numerical method.

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