Gabriel I. Barbejat, Maurício V. Donadon, Roberto G. Silva, Antonio M. G. de Lima, André G.C. Filho, Leandro S. Leão

DOI Number: N/A

Conference number: IFASD-2015-013

Emergence of flutter compromises not only the long term durability of the wing structure, but also the operational safety, flight performance and energy efficiency of the aircraft. Effective means of flutter prevention are, therefore, mandatory in the certification of new flight vehicles. This work intends to address the application of viscoelastic material for flutter suppression in a typical section under quasi-steady and unsteady aerodynamic loads. A numerical procedure is proposed to solve the set of non-linear equations. A parametric study showing the influence of the temperature on the stiffness, damping and flutter velocity of the system is also carried out using different viscoelastic based damping arrangements. The preliminary results indicate that the aeroelastic behavior of the system is significantly affected by the temperature and viscoelastic damping arrangement.

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In Categories: 2. IFASD 2015, Aeroelastic Response & Stability
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