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http://dx.doi.org/10.5050/KSNVN.2002.12.2.132

Dynamic Behavior of a Simply Supported Fluid Flow Pipe with Moving Masses  

윤한익 (동의대학교 기계·산업시스템공학부)
임순홍 (정상특수금속엔지니어링(주))
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.12, no.2, 2002 , pp. 132-140 More about this Journal
Abstract
A simply supported pipe conveying fluid and the moving masses upon it constitute this vibrational system. The equation of motion is derived by using Lagrange's equation. The influence of the velocity and the inertia force of the moving masses and the velocities of fluid flow in the pipe have been studied on the dynamic behavior of a simply supported pipw by numerical method. The velocities of fluid flow are considered within its critical values of the simply supported pipe without the moving masses upon it. Their coupling effects on the transverse vibration of a simply supported pipe are inspected too. The dynamic deflection of the simply supported pipe conveying fluid is increased by a coupling of the moving masses and the velocities of the moving masses and the fluid flow. When four or five regular interval masses move on the simply supported pipe conveying fluid, the amplitude of the simply supported pipe conveying fluid is small at low velocity of the masses, but at high velocity of the masses the deflection of midspan of the pipe is increased by coupling with the numbers and magnitude of the masses. The time which produce the maximum dynamic deflection of the simply supported pipe is delayed according to the increment of the number of moving masses.
Keywords
Pipe Conveying Fluid; Moving Mass; Dynamic Behavior; Nonconservative Force; Flutter;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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