Abstract
In this paper, we study the bending oscillations of a two-support pipeline under the effect of internal variable pressure. The transported medium in the pipeline consists of fluid and gas phases. The gas flow in the axial direction is assumed to occur inside a fluid circular cylindrical region, while the flow rate is neglected. Changes in pressure in the fluid due to the accelerated movement of the pipeline are taken into account. Numerical and approximate analytical solutions of the equation of steady bending oscillations are obtained.
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ACKNOWLEDGMENTS
The authors are grateful to M.A. Ilgamov for discussing this work.
Funding
This work in part of the problem statement and the analysis of the calculation results was supported by the Russian Foundation for Basic Research, project no. 18-01-00150-a. The development of the computer code was supported by a state assignment for 2019–2022, project no. 0246-2019-0088.
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Translated by A. Ivanov
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Shakir’yanov, M.M., Yulmukhametov, A.A. Effect of an Internal Attached Mass on Nonlinear Pipeline Oscillations. J. Mach. Manuf. Reliab. 49, 749–756 (2020). https://doi.org/10.3103/S1052618820090113
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DOI: https://doi.org/10.3103/S1052618820090113