Estimation of damped oscillation parameters of manometric tubular spring

Tyumen State University Herald. Physical and Mathematical Modeling. Oil, Gas, Energy


2015, Vol. 1. №1(1)

Estimation of damped oscillation parameters of manometric tubular spring

About the authors:

Dmitry A. Cherentsov, Post-graduate student, Assistant Lecturer, Department of Hydrocarbons Transport, Tyumen State Oil and Gas University
Sergey P. Pirogov, Dr. Techn. Sci., Professor, Department of applied mechanics, Tyumen State Oil and Gaz University
Sergey M. Dorofeyev , Associate Professor, Department of Mathematics and Information Science, Tyumen State University, Cand. Phys. and Math. Sci.
Aleksander Y. Tchuba, Cand. Techn. Sci., Associate Professor, Department of alltechnical disciplines, Tyumen state agricultural academy


The paper presents the results of numerical and field experiments undertaken to determine the parameters of damped oscillations of manometric tubular springs. Oscillatory motion caused by the vibration of equipment on which instruments for measuring pressure are installed, or uneven flow of pumped medium (pulsation of the working environment) make it difficult to accurately record the pressure. One of the solutions is placing an elastic element of a device — a manometric tubular spring (MTS) — in a liquid medium. The dynamic model of MTS is represented as a thin-walled curved bar oscillating in the plane of curvature of the central axis. Equations of MTS oscillations are obtained for normal and tangent projections in line with d’Alembert’s principle. Bubnov–Galerkin method is used to solve the equations. On the basis of this solution, Manometer software system is designed. The results are verified by an experimental study.


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