抄録
This paper deals with flutter analysis of a rectangular shell based on the non-planar unsteady lifting surface theory. In this study, experiments are conducted with a cantilevered rectangular shell subjected to inner fluid flow, and vibration characteristic are examined. The unsteady fluid force acting on the shell surface is calculated by using Doublet-point method. The equation of motion of the shell coupled with the fluid flow is derived by employing the finite element method. The stability of the system is examined by using the root locus based on the complex eigenvalue obtained from the flutter determinant. The effects of the aspect ratio on the flutter velocity, frequency and mode are clarified.
