COMPARISON OF THE PETER AND THEODORSON AERODYNAMICS IN DETERMINATION OF AEROELASTIC INSTABILITY

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HADADPOUR H.; MAHMOUDKHANI S.

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Journal: Sharif Journal of Civil Engineering Year:2008 | Volume:24 | Issue:42 Page(s): 75-80

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Title

COMPARISON OF THE PETER AND THEODORSON AERODYNAMICS IN DETERMINATION OF AEROELASTIC INSTABILITY

Author(s)

HADADPOUR H. | MAHMOUDKHANI S. | Issue Writer Certificate

Keywords

INCOMPRESSIBLE FLOWQ2

PETER'S THEORYQ3

THEODORSON AERODYNAMICQ3

INSTABILITYQ3

Abstract

In this study, the INSTABILITY boundary of a wing - in the INCOMPRESSIBLE FLOW regime has been considered, using Peter's aerodynamics, and compared with the result obtained from the Theodor son aerodynamic. To this aim, the lift coefficient, based on PETER'S THEORY in the frequency domain, is obtained, at first, for a pure plunging motion. Then, real and imaginary parts of the lift and moment are plotted versus reduced frequency and compared with those from the THEODORSON AERODYNAMIC. It can be seen that, with a fewer number of aerodynamic states in PETER'S THEORY (N=5) , there will be good agreement between the two theories. In addition, equations corresponding to mass, stiffness and damping matrices from PETER'S THEORY have been obtained. To do this, two models, including a typical section and beam, are used for structural modeling. Finally, the flutter boundary is determined using p - k and p methods and the results compared with those from the Theodor son aerodynamic results show good agreement between the two theories.

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APA: Copy

HADADPOUR, H., & MAHMOUDKHANI, S.. (2008). COMPARISON OF THE PETER AND THEODORSON AERODYNAMICS IN DETERMINATION OF AEROELASTIC INSTABILITY. SHARIF: CIVIL ENINEERING, 24(42), 75-80. SID. https://sid.ir/paper/127991/en

Vancouver: Copy

HADADPOUR H., MAHMOUDKHANI S.. COMPARISON OF THE PETER AND THEODORSON AERODYNAMICS IN DETERMINATION OF AEROELASTIC INSTABILITY. SHARIF: CIVIL ENINEERING[Internet]. 2008;24(42):75-80. Available from: https://sid.ir/paper/127991/en

IEEE: Copy

H. HADADPOUR, and S. MAHMOUDKHANI, “COMPARISON OF THE PETER AND THEODORSON AERODYNAMICS IN DETERMINATION OF AEROELASTIC INSTABILITY,” SHARIF: CIVIL ENINEERING, vol. 24, no. 42, pp. 75–80, 2008, [Online]. Available: https://sid.ir/paper/127991/en

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