摘要
对水翼及水翼艇的颤振作了理论上的探讨和数值上的分析.具体讨论了二维水翼的颤振机理,分析研究了水翼升力系统的密度比、重心位置、固有频率比等基本参数对颤振稳定性的影响.理论预测水翼的临界颤振速度与资料中的实验值比较吻合.对水翼艇采用有限元法进行颤振分析。
The hydrofoil flutter and the hydrofoil craft flutter are studied. The flutter mechanismand analysis methods are presented here.The influence of the hydrofoil system parameters,i.e.density radio,location of center of gravity, uncoupled natural frequence ratio,etc.onthe flutter stability are discussed. The predicted flutter speed in this paper is in agreementwith the measured speed in references. The hydrofoil craft flutter analysis is processed withmethod of finite element. The procedure to the predicted hydrofoil craft critical flutterspeed is presented
关键词
水翼艇
水弹性
颤振
ydrofoil craft
hydroelasticity
flutter