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POSITIONS OF ELASTIC EQUILIBRIUM OF A PIPELINE WITH VIBRATING SUPPORTS

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Abstract

The spatial vibrations of a pipeline on two supports vibrating in the vertical direction with equal amplitudes and phases are considered. The pipeline movement consists of rotation (rolling) around a straight line passing through the supports and bending deformation. It is assumed that the bending occurs in the rolling plane without torsional deformation. Nonlinear equations of bending and angular motion of the pipeline are used. The pipeline movement was studied in the case where the bending is much more influenced by the internal pressure of the medium in the pipe than by the pipe weight. By analogy with the Kapitza pendulum, the ranges of input parameters are determined in which the upper and lower bent states of the pipeline are stable. Numerical calculations were carried out for a reinforced magnesium tube filled with methane.

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Authors and Affiliations

  1. Institute of Mechanics, Ufa Federal Research Center, Russian Academy of Sciences, 450054, Ufa, Russia

    M. A. Ilgamov & M. M. Shakiryanov

  2. Blagonravov Institute of Mechanical Engineering, Russian Academy of Sciences, 101990, Moscow, Russia

    M. A. Ilgamov

  3. Bashkir State University, 450076, Ufa, Russia

    M. A. Ilgamov

Authors
  1. M. A. Ilgamov
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  2. M. M. Shakiryanov
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Correspondence to M. M. Shakiryanov.

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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2021, Vol. 63, No. 3, pp. 183-192. https://doi.org/10.15372/PMTF20220318.

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Ilgamov, M.A., Shakiryanov, M.M. POSITIONS OF ELASTIC EQUILIBRIUM OF A PIPELINE WITH VIBRATING SUPPORTS. J Appl Mech Tech Phy 63, 533–541 (2022). https://doi.org/10.1134/S002189442203018X

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  • DOI: https://doi.org/10.1134/S002189442203018X

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