Published: 30 June 2008

Parametrization-based shape optimization of shell structures in the case of free vibrations

D. Dagys1
V. Ostasevicius2
R. Gaidys3
Views 2
Reads 0
Downloads 1061

Abstract

A finite-element-based shape optimization methodology has been developed for three-dimensional shell structures and shape optimization of shell structures has been performed. The shape optimization program is implemented by a job control language and commercial finite element analysis software ANSYS is used for structural analysis. Principles of structural analysis and automatic mesh generation are applied for achieving shape optimization. The objective is to minimize the weight of the shell structure under frequency constrains and the move limit for each design variable. In this paper several optimization examples are provided

About this article

Received
05 May 2008
Accepted
13 June 2008
Published
30 June 2008
Keywords
Shape optimization
shell structures
finite element analysis
parametrization