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1 Research Bulletin / Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics

1 1999

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Some pecularities of the aeroelastic influence on the aerodynamic characteristics of the airplane with high aspect ratio wing

Kabin S., Nushtaev P.

Research Bulletin / Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics

1999

nr 9

27-30

It is well known, that elastic deformations could significantly influence on the aerodynamic characteristics of the modem airplane, especially on the characteristics of the airplane with high aspect ratio swept wing. If we try to obtain the maximum of economical benefit and try to diminish the weight of the construction of the airplane, the stiffness of the main elements (wing, fuselage , tail) must be diminished too, and it leads to the increase of elastic deformations and corresponding aeroelastic effects. This problem has many aspects, one of them is the follows: how to take into account the aeroelastic effects in flight dynamics modelling.