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Transverse Vibrations of Double Bellows Expansion Joint Restrained Against Rotation

[+] Author Affiliations
C. Kameswara Rao

Bharat Heavy Electricals Ltd., Hyderabad, India

M. Radhakrishna

Indian Institute of Chemical Technology, Hyderabad, India

Paper No. ICONE10-22092, pp. 499-506; 8 pages
doi:10.1115/ICONE10-22092
From:
  • 10th International Conference on Nuclear Engineering
  • 10th International Conference on Nuclear Engineering, Volume 1
  • Arlington, Virginia, USA, April 14–18, 2002
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-3595-2 | eISBN: 0-7918-3589-8
  • Copyright © 2002 by ASME

abstract

The paper presents the results of investigation of transverse vibrations of double bellows expansion joint restrained against rotation on either end. A theoretical model is developed based on the Bernoulli-Euler beam theory and includes added mass of the fluid flowing inside the pipe-bellow-pipe assembly. Neglecting effect of shear, an exact frequency equation is derived for the transverse vibrations of double bellows expansion joint including the effects of end elastic restraints against rotation. Numerical results are presented for an example bellow showing the effects of variation of elastic restraints and internal pressure on the first two modes of vibration.

Copyright © 2002 by ASME

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