Nonlinear Aeroelastic Simulation of a Full-Span Aircraft with Oscillating Control Surfaces

In this paper, the transonic and low-supersonic aeroelastic behavior of the generic fighter model was investigated in the time domain. The simulation of flutter flight test using forced harmonic motion of control surfaces including inertial coupling effects was conducted at the various conditions. T...

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Published in:Journal of aerospace engineering 2005-07, Vol.18 (3), p.156-167
Main Authors: Yoo, Jae-Han, Kim, Dong-Hyun, Kwon, Hyuk-Jun, Lee, In
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description In this paper, the transonic and low-supersonic aeroelastic behavior of the generic fighter model was investigated in the time domain. The simulation of flutter flight test using forced harmonic motion of control surfaces including inertial coupling effects was conducted at the various conditions. The detailed dynamic aeroelastic responses are computed using a coupled time-marching method based on the effective computational structural dynamic and computational fluid dynamics techniques. The nonlinear aerodynamic effects due to an existing shock wave on the lifting surfaces were considered using a transonic small disturbance equation. A modal model obtained by a free vibration analysis was used for the structural model. The relations between the computed flutter boundary and the simulation results of the responses using the harmonic motions of control surfaces at various conditions were investigated.
doi_str_mv 10.1061/(ASCE)0893-1321(2005)18:3(156)
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title Nonlinear Aeroelastic Simulation of a Full-Span Aircraft with Oscillating Control Surfaces
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