내부 유동유체에 의한 송수관의 동적안정성과 진동제어

Vibration Control and Dynamic Stability of Pipes by means of Internal Flowing Fluid

The present paper deals with the dynamic stability and vibration suppression of a cantilevered flexible pipe with a concetrated mass under an internal fluid flow. The equations of motion are derived by energy expressions using Hamilton's pronciple, and some analytical results using Galerkin's method are presented. Finally, the vibration suppression technique by means of an internal fluid flow is demonstrated experimentally.