翼列フラッタの実験 : 第1報, 純曲げ振動翼列における空力的減衰力の測定一実験装置および二, 三の実験結果

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タイトル別名
  • Experimental Study on Flutter in Cascading Blades : 1st Report, Measurement of the Aerodynamic Damping Force Acting on Cascading Blades Vibrating in Translatory Mode
  • ヨクレツ フラッタ ノ ジッケン 1

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For the purpose of investigating the aerodynamic damping effects on vibrating cascade blades, the authors made a water tunnel with a linear cascade in which five blades vibrate in a translatory mode with arbitrary frequency and phase angle between the adjacent blades. A series of experiments were carried out on an isolated blade and on the cascades with the following conditions ; Blades : NACA 65-(12) 10 (fixed : 8, vibrating : 5) chord : 30 mm span : 60 mm solidity : 1 stagger angle : 0°, 30° amplitude of vibration : 2 mm The experimental results were analyzed by comparing with the theoretical one hitherto obtained and with the aid of the considerations about the quasi-steady force of vibrating blades.

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