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Multidisciplinary optimization of a stiffened shell by genetic algorithm
398 viewed

Multidisciplinary optimization of a stiffened shell by genetic algorithm

Mehrabani, M. M

Multidisciplinary optimization of a stiffened shell by genetic algorithm

Mehrabani, M. M ; Sharif University of Technology | 2012

398 Viewed
  1. Type of Document: Article
  2. DOI: 10.1007/s12206-011-0912-z
  3. Publisher: 2012
  4. Abstract:
  5. Vibration analysis of simply supported rotating cross-ply laminated stiffened cylindrical shell is performed using an energy approach which includes variational and averaging method. The stiffeners include rings and stringers. The equations are obtained by Rayleigh-Ritz method and Sander's relations. To validate the present method, the results are compared to the results available in other literatures. A good adoption is observed in different type of results including isotropic shells, rotating laminated shells, stiffened isotropic shells and stiffened laminated shells. Then, the optimization of parameters due to shell and stiffeners is conducted by genetic algorithm (GA) method under weight and frequency constraints. Stiffener shape, material properties and dimensions are also optimized
  6. Keywords:
  7. Natural frequency ; Weight ; Averaging method ; Cross-ply ; Energy approach ; Frequency constraint ; Isotropic shells ; Laminated shell ; Material property ; Multi-disciplinary optimizations ; Optimization of parameters ; Rayleigh-Ritz methods ; Simply supported ; Stiffened cylindrical shell ; Stiffened shells ; Genetic algorithms ; Laminating ; Natural frequencies ; Optimization ; Rotation ; Stringers ; Vibration analysis ; Shells (structures)
  8. Source: Journal of Mechanical Science and Technology ; Volume 26, Issue 2 , February , 2012 , Pages 517-530 ; 1738494X (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2Fs12206-011-0912-z