円錐殻の超音速パネルフラッタ(第II報)風胴実験
1977 年 25 巻 277 号 p. 95-101
詳細
1977 年 25 巻 277 号 p. 95-101
Unstiffened truncated conical shells were tested for flutter at a Mach number 2.0 in the NAL 1-by 1-meter blowdown wind tunnel. The shells were made of super-invar in order to avoid the thermal stresses and had a ratio of slant length to small radius 1.61 and a semivertex angle of 14°. The experimental results were in good agreement with a flutter boundary calculated by the FEM based on a Donnell-type theory. Vibration and external pressure buckling tests were also performed with good agreement be- tween theory and experiment.
