Flutter Analysis of a Hybrid Plate-Like Fiber-Reinforced Composite Wing
| Autor: | Dayang Laila Abang Abdul Majid, Renuganth Varatharajoo, Abdolhamid Attaran, Shahnor Basri |
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| Rok vydání: | 2011 |
| Předmět: |
Wing
Materials science business.industry Mechanical Engineering Composite number Aerodynamics Epoxy Fiber-reinforced composite Structural engineering Aeroelasticity Mechanics of Materials Normal mode visual_art visual_art.visual_art_medium Flutter General Materials Science Composite material business |
| Zdroj: | Key Engineering Materials. :1107-1112 |
| ISSN: | 1662-9795 |
| Popis: | The aeroelastic flutter of a laminated hybrid composite wing was investigated. The composite wing was modelled as composite plates and the aeroelastic analysis has been carried out in the frequency-domain. Pre-determined fiber orientation of a 3-layers carbon/epoxy and glass/epoxy laminated plate has been employed with various aspect ratios. The modal approach and the Doublet-lattice Method (DLM) have been used herein to calculate the normal modes and the unsteady aerodynamics of the plate. The structural and aerodynamic models were connected using surface splines and the flutter speed has been calculated using the p-k method that provides the eigenvalues at different air densities and airstream velocities. The study showed that it is imperative that the carbon/epoxy should be employed in the outermost layers in order to improve the flutter speed and flutter frequency. |
| Databáze: | OpenAIRE |
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