遷音速翼列における翼ねじり振動時の衝撃波の挙動 : 高速画像撮影システムの開発

概要

論文の詳細を見る
A high-speed digital video camera with a relatively low shutter speed was used to capture the movement of shock waves in transonic or supersonic cascade oscillation in pitching motion up to high frequency. Pictures are taken with constant shutter speed during some periods of blade oscillation and then rearranged according to the phase angle relative to the blade displacement. To confirm the ability and utility of this system, experiments were carried out using a controlled-oscillated linear cascade. The cascade was composed of seven flat-plate-profile blades and only the center blade of the cascade was forced to vibrate mechanically. Using this system, the movement of shock waves was analyzed in the cases of 23, 100, 150 and 200 Hz of blade frequencies at inlet Mach number of 0.65.
一般社団法人日本機械学会の論文
1995-04-25