EFFECTS OF MODE LOCALIZATION ON T-TAIL FLUTTER CHATACTERISTICS

YANG Fei;YANG Zhi-chun

Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (8) : 1-4.

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Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (8) : 1-4.
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EFFECTS OF MODE LOCALIZATION ON T-TAIL FLUTTER CHATACTERISTICS

  • YANG Fei1 ;YANG Zhi-chun2
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Abstract

The effects of mistuning on the aeroelastic characteristics of T-tail structure were investigated using the beam T-tail model as example. A modal flutter analysis procedure for T-tail structure was used to account for the effects of mass and stiffness mistuning. Mode localization design of beam T-tail structure was made by introducing mass mistuning on the tip of horizontal stabilizer and stiffness mistuning at the root of horizontal stabilizer. Simulation results show that: the natural frequency and mode shape is changed by mode localization, and with the decrease of mistuning, the flutter velocity will decrease as the mode localization strength increases.

Key words

T-tail / mode localization / localization strength / mistuning / flutter / natural frequency

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YANG Fei;YANG Zhi-chun. EFFECTS OF MODE LOCALIZATION ON T-TAIL FLUTTER CHATACTERISTICS[J]. Journal of Vibration and Shock, 2010, 29(8): 1-4
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