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http://dx.doi.org/10.5050/KSNVN.2007.17.1.010

Stability Analysis of Pipe Conveying Fluid with Crack  

Son, In-Soo (동의대학교 기계공학과)
Ahn, Tae-Su (동의대학교 대학원 기계공학과)
Yoon, Han-Ik (동의대학교 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.17, no.1, 2007 , pp. 10-16 More about this Journal
Abstract
In this paper, the dynamic stability of a cracked simply supported pipe conveying fluid is investigated. In addition, an analysis of the flutter and buckling instability of a cracked pipe conveying fluid due to the coupled mode(modes combined) is presented. Based on the Euler-Bernouli beam theory, the equation of motion can be constructed by using the Galerkin method. The crack section is represented by a local flexibility matrix connecting two undamaged pipe segments. The stiffness of the spring depends on the crack severity and the geometry of the cracked section. The crack is assumed to be in the first mode of fracture and to be always opened during the vibrations. This results of study will contribute to the safety test and a stability estimation of the structures of a cracked pipe conveying fluid.
Keywords
Flutter/Divergence Instability; Pipe Conveying Fluid; Stability; Open Crack;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Paidoussis, M. P., 1998, Fluid-structure Interactions (Volume 1), Academic Press
2 Datta, P. K. and Lal, M K., 1992, 'Parametric Instability of a Non-prismatic Bar with Localized Damage Subjected to an Intermediate Periodic Axial Load' , Computer and Structures, Vol. 4, No. 6, pp. 1199-1202
3 Ruotolo, R., Surace, C, Crespo, P. and Storer, D., 1996, 'Harmonic Analysis of the Vibrations of a Cantilevered Beam with a Closing Crack' , Computers and Structures, Vol. 61, No. 6, pp. 1057-1074   DOI   ScienceOn
4 Takahashi, I.. 1999, 'Vibration and Stability of Non-uniform Cracked Timoshenko Beam Subjected to Follower Force' , Computers and Structures, 71, pp.585-59l   DOI   ScienceOn
5 Liu, n, Gurgenci, H. and Veidt, M., 2003, 'Crack Detection in Hollow Section Structures Through Coupled Response Measurements', Journal of Sound and Vibration, Vol. 261, pp. 17 -29   DOI   ScienceOn
6 Ryu, B. J., Jung, S. H. and Kang, Y. C., 1998, 'A Study on the Dynamic Stability and Vibration Control of Cantilevered Pipes Conveying Fluid' , Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 8, No. 1, pp. 171-179
7 Wang, Q., 2004, 'A Comprehensive Stability Analysis of a Cracked Beam Subjected to Follower Compression' , International Journal of Solids and Structures, Vol. 41, pp. 4875-4888   DOI   ScienceOn
8 Paidoussis, M. P., 1975, 'Flutter of Conservative Systems of Pipes Conveying Incompressible Fluid', Journal of Mechanical Engineering Science, Vol. 17, pp. 19-25   DOI
9 Chen, C. C., 1987, Flow-induced Vibration of Circular Cylindrical Structures, Washington: Hemisphere
10 Yoon, H. I. and Son, I. S., 2002, 'Dynamic Characteristics of Cantilever Pipe Conveying Fluid with the Moving Masses' , Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 12, No. 7, pp. 550-556   DOI   ScienceOn
11 Takahashi, I., 1997. 'Vibration and Stability of a Cracked Shaft Simultaneously Subjected to a Follower Force with an Axial Force', Int. Journal of Solids and Structures, Vol. 35, No. 23, pp. 3071- 3080   DOI   ScienceOn