Composite wing structural optimization using genetic algorithms and response surfaces

Author(s):  
Boyang Liu ◽  
Raphael Haftka ◽  
Mehmet Akgun
2013 ◽  
Vol 341-342 ◽  
pp. 519-523
Author(s):  
Ya Hui Zhang ◽  
Ji Hong Zhu ◽  
Jun Shuo Li ◽  
Wei Hong Zhang

The problem of metal-composite wing structural optimization is discussed and a strategy is presented. Topology optimization method is applied to provide load transferring path of structure for concept design. Size, shape and other optimization method are used to provide detailed design for individual components. A three-phase optimization method is discussed for fiber reinforced composite laminate skin. Optimal parameters include ply angle, percentage, thickness, layer shape and sequence. The design of laminate for ease of manufacture is based on a set of manufacturing constraints. This paper deals with a total optimal design solution for aileron structure of an aircraft. The result satisfies all the requirements of strength and stability, and has obvious effect of weight loss.


Author(s):  
Phyo Wai Aung ◽  
Oleg Tatarnikov ◽  
Naing Lin Aung

2004 ◽  
Vol 29 (2) ◽  
pp. 93-102 ◽  
Author(s):  
N. Stander ◽  
K.J. Craig ◽  
H. M�llersch�n ◽  
R. Reichert

Author(s):  
Shayan Seyedin ◽  
Shima Maghsoodloo ◽  
Vahid Mottaghitalab

In this article, modified neural networks using genetic algorithms were employed to investigate the simultaneous effects of four of the most important parameters, namely; solution concentration (C); spinning distance (d); applied voltage (V); and volume flow rate (Q) on mean fiber diameter (MFD), as well as standard deviation of fiber diameter (StdFD) in electrospinning of polyvinyl alcohol (PVA) nanofibers. Genetic algorithm optimized neural networks (GANN) were used for modeling the electrospinning process. The results indicate better experimental conditions and more predictive ability of GANNs. Therefore, the approach of using genetic algorithms to optimize neural networks for modeling the electrospinning process has been successful. RSM could be employed when statistical analysis, quantitative study of the effects of the parameters and visualization of the response surfaces are of interest, whereas in the case of modeling the process and predicting new conditions, GANN is a more powerful tool and presents more desirable results.


2003 ◽  
Vol 39 (3) ◽  
pp. 1301-1304 ◽  
Author(s):  
M. Caldora Costa ◽  
M. Leite Pereira ◽  
Y. Marechal ◽  
J. Coulomb ◽  
J.R. Cardoso

2006 ◽  
Vol 72 (716) ◽  
pp. 385-390 ◽  
Author(s):  
Hiroo SAKAMOTO ◽  
Shiro TAKADA ◽  
Junko ITOH ◽  
Masayuki MIYAZAKI ◽  
Toshihide MURAKAMI ◽  
...  

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