The supersonic flutter of canti-levered plate wings is analyzed using the finite element method and the quasi-steady aerodynamic theory. The influences of the decrease in the length of a fixed root on flutter characteristics are clarified. It is shown that if the length of a fixed root is above 70% of a wing root chord, flutter characteristics do not change so much, but under 70%, they change markedly and complicatedly. The mechanism of the change of flutter characteristics is clearly explained through the investigation of natural vibration modes and frequency changes due to the aerodynamic force.
有限要素法による板翼の超音速フラッタに関する一解析(<特集>観測ロケット基礎開発研究特集号)
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