Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Frequency Response Analysis of Cylindrical Shells Conveying Fluid Using Finite Element Method

  • Seo Young-Soo (Department of Mechanical Engineering, Pusan National University) ;
  • Jeong Weui-Bong (Department of Mechanical Engineering, Pusan National University) ;
  • Yoo Wan-Suk (Department of Mechanical Engineering, Pusan National University) ;
  • Jeong Ho-Kyeong (Structure & Materials Department KSLV Technology Division)
  • Published : 2005.02.01
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Abstract

A finite element vibration analysis of thin-walled cylindrical shells conveying fluid with uniform velocity is presented. The dynamic behavior of thin-walled shell is based on the Sanders' theory and the fluid in cylindrical shell is considered as inviscid and incompressible so that it satisfies the Laplace's equation. A beam-like shell element is used to reduce the number of degrees-of-freedom by restricting to the circumferential modes of cylindrical shell. An estimation of frequency response function of the pipe considering of the coupled effects of the internal fluid is presented. A dynamic coupling condition of the interface between the fluid and the structure is used. The effective thickness of fluid according to circumferential modes is also discussed. The influence of fluid velocity on the frequency response function is illustrated and discussed. The results by this method are compared with published results and those by commercial tools.

Keywords

References

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