スマート構造を用いた翼列フラッターの能動制御 : 第一報流体・構造連成数値解析法の開発と制御方法の予備的検討

概要

論文の詳細を見る
Numerical method with Flow-Structure Coupling was developed to investigate possibility of active cascade flutter control with smart structures. By the method, aerodynamic damping and aerodynamic interference between blades could be properly simulated. Unsteady aerodynamic characteristic of a mistuned cascade was numerically analyzed by the developed method, and it was proved that increase in blade amplitude was effectively suppressed according to the well-known mistuning nature. Feasibility of active cascade flutter control was studied on the cases in which natural frequency or oscillating direction of blades was actively changed when the amplitude of blade oscillation started to increase. The results showed active suppression of cascade flutter should be possible by such control method.
社団法人日本ガスタービン学会の論文
2005-07-20