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Calculation of the Vibration Parameters of Steam-Generator Tube Systems to Validate the Vibration Strength and Lifetime

  • NEW TECHNOLOGIES IN MECHANICAL ENGINEERING
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Abstract

A mathematical model of the vibrations of an elastic tube bundle in a crossflow is considered. The model is applicable to predict the reaction of the tube bundle components under the action of the vortex and hydroelastic excitation mechanisms considering the intermediate supports placed with gaps between them and the tube components—the presence of the gaps is a necessary precondition for assembling the structure. The impact of the tubes–intermediate supports is taken into account by the oblique impact model with the normal and tangential components of the reaction force of the supports. The proposed mathematical model was implemented in the Matlab programming environment. The parameters of the induced vibrations of the steam-generator-tube model such as the frequency content and the root-mean-square (rms) values of the vibration-induced displacements and accelerations were calculated. The dependences of the above parameters on the design and operating characteristics were studied.

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Authors and Affiliations

  1. Blagonravov Institute of Machine Science, Russian Academy of Sciences, 101990, Moscow, Russia

    T. N. Fesenko & L. I. Shitova

  2. Dollezhal Research and Development Institute of Power Engineering, 107140, Moscow, Russia

    S. A. Koretskii

Authors
  1. T. N. Fesenko
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  2. S. A. Koretskii
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  3. L. I. Shitova
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Corresponding author

Correspondence to T. N. Fesenko.

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The authors declare no conflict of interest.

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Translated by O. Lotova

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Fesenko, T.N., Koretskii, S.A. & Shitova, L.I. Calculation of the Vibration Parameters of Steam-Generator Tube Systems to Validate the Vibration Strength and Lifetime. J. Mach. Manuf. Reliab. 49, 421–428 (2020). https://doi.org/10.3103/S1052618820050052

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  • DOI: https://doi.org/10.3103/S1052618820050052

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