Dynamic behavior of cracked pipe conveying fluid with moving mass based on timoshenko beam theory |
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Authors: | Yoon Han-Ik Son In-Soo |
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Affiliation: | (1) Mechanical Engineering, University of Dong-eui, San 24, Gaya3-dogn Busanjin-gu, 614-714 Busan, Korea;(2) Department of Mechanical Engineering, Graduate School of Dong-eui University, 614-714 Busan, Korea |
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Abstract: | In this paper we studied about the effect of the open crack and the moving mass on the dynamic behavior of simply supported
pipe conveying fluid. The equation of motion is derived by using Lagrange’s equation and analyzed by numerical method. The
crack section is represented by a local flexibility matrix connecting two undamaged pipe segments i.e. the crack is modeled
as a rotational spring. The influences of the crack severity, the position of the crack, the moving mass and its velocity,
the velocity of fluid, and the coupling of these factors on the vibration mode, the frequency, and the mid-span displacement
of the simply supported pipe are depicted. |
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Keywords: | ,Dynamic Behavior,Open Crack,Moving Mass,Pipe Conveying Fluid,Timoshenko Beam Theory,Flexibility Matrix,Crack Severity |
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