首页 | 本学科首页   官方微博 | 高级检索  
     


Numerical optimum design of elastic annular plates with respect to buckling
Authors:K Rzegocińska-Pe?ech  Z Waszczyszyn
Affiliation:Technical University of Cracow, Warszawska 24, 31-155 Kraków, Poland
Abstract:Annular plates of fixed volume, under uniform radial edge compression are considered. The plate is divided into N segments of linearly variable or constant thickness. Geometrical constrains for the segment thickness and for the effective stress are assumed. Two types of objective functions are explored: (I) maximum value of critical load at the fixed number of circumferential buckling half-waves j, (II) unimodal optimum design for such a number j that buckling load equals max
/></figure>. The shooting method is applied to compute the distribution of axial forces in the prebuckling state and the basic buckling load for the plate of variable thickness. The optimal distribution of segment thicknesses <em>Xk</em> for <em>k</em> = 1, …, <em>N</em> are computed by means of Rosenbrock's method with internal penalty function. Results of numerical analysis are reported for the both optimum design problems I and II.</td>
	  </tr> 
	  <tr>
	   <td align=
Keywords:
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号