Paper Information

Journal:   SCIENTIA IRANICA   SEPTEMBER-OCTOBER 2007 , Volume 14 , Number 5; Page(s) 499 To 506.
 
Paper: 

TWO-OBJECTIVE STACKING SEQUENCE OPTIMIZATION OF A CYLINDRICAL SHELL USING GENETIC ALGORITHM

 
 
Author(s):  YAS M.H., GHASEMI GOL M., SHAKERI M.*
 
* DEPARTMENT OF MECHANICAL ENGINEERING, AMIR KABIR UNIVERSITY, TEHRAN, I.R. IRAN
 
Abstract: 

In this paper, the stacking sequence optimization of a laminated cylindrical shell has been studied for obtaining maximum natural frequency and buckling stress, simultaneously. An anisotropic cylindrical shell has a finite length with simply supported conditions at both ends. Three-dimensional elasticity approaches are used for free vibration analysis and the buckling stress function is based on the theory of classic shells. A genetic algorithm is used for optimization and, regarding the two-objective problem, a Pareto-optimally curve is used to help determine the best way to simultaneously satisfy all objectives. Finally, numerical results are presented for the optimization of a six-layer cylindrical shell.

 
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