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http://dx.doi.org/10.5139/JKSAS.2002.30.6.092

Nonlinear Simulation of Flutter Flight Test with the Forced Harmonic Motion of Control Surfaces  

Yoo, Jae-Han (한국과학기술원 항공우주공학과)
Kim, Dong-Hyun (한국과학기술원 항공우주공학과)
Kwon, Hyuk-Jun (한국과학기술원 항공우주공학과)
Lee, In (한국과학기술원 항공우주공학과)
Kim, Young-Ik (한국항공우주산업)
Lee, Hee-Woo (공군본부, 항공사업단 고등훈련기사업처)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.30, no.6, 2002 , pp. 92-100 More about this Journal
Abstract
In this study, transonic/supersonic nonlinear flutter analysis system of a complete aircraft including forced harmonic motion pf control surfaces has been effectively developed using the modified transonic small disturbance (TSD) equation. To consider the nonlinear effects, the coupled time marching method (CTM) combining computational structural dynamics (CFD) has been directly applied for aeroelastic computations. The grid system for a complex full aircraft configuration is effectively generated by the developed inhouse code. Intransonic and supersonic flight regimes, the characteristics of static and dynamic aeroelastic effect has been investigated for a complete aircraft model. Also, nonlinear flutter flight simulations for the forced harmonic motion of control surfaces are practically presented in detail.
Keywords
Transonic; Supersonic; Nonlinear; Flutter; Control surface motion; Flutter Filght Test;
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