Mathematical modeling of the mechanisms of volumetric hydraulic machines

Semenov, S.; Kulakov, D.

doi:10.1088/1757-899x/492/1/012042

Cited by 14 publications

(2 citation statements)

References 11 publications

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“…The average value of the energy efficiency coefficient is defined as the ratio of the energy that has passed through the tested hydraulic machine since the beginning of the tests at the time under consideration to the energy consumed by the energy source since the beginning of the tests at the time under consideration. [24].…”

Section: Discussionmentioning

confidence: 99%

Mathematical modelling of the hydromechanical drive of the test bench for plunger hydraulic cylinders with energy recovery

Rybak,

Meskhi,

Pelipenko

et al. 2023

E3S Web of Conf.

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Reliability is a significant parameter of machines, mechanisms, drives, technological equipment and its component parts, including hydraulic motors. Reliability is checked and confirmed by carrying out resource tests, the results of which reveal the characteristics and properties of materials, components and working fluids that are used in the production of hydraulic cylinders and during operation. One of the practical ways to determine reliability is testing. The aim of the work is to improve the theory and methods of calculation and design of the hydromechanical drive system of the service life test bench of plunger hydraulic cylinders through the use of an energy recovery scheme that provides an increase in the energy efficiency of the testing process. Developed on the basis of the application of the theory of volumetric rigidity, a mathematical model of the hydromechanical drive system of the plunger hydraulic cylinder service life test bench made it possible to compare the influence of various design and functional parameters of the elements of the hydromechanical system of the stand on the dynamic performance and energy efficiency of its drive.

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Section: Discussionmentioning

confidence: 99%

Mathematical modelling of the hydromechanical drive of the test bench for plunger hydraulic cylinders with energy recovery

Rybak,

Meskhi,

Pelipenko

et al. 2023

E3S Web of Conf.

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“…After analyzing the results obtained in articles (Egorkina, Petrov, 2019;Isaev, 2019;Petrov et al, 2019;Semenov, Kulakov, 2019;Martynyuk et al, 2019;Protopopov et al, 2020), the fluid flow around the original plate with spherical macro-roughness of different configurations on the leading edge was analyzed in the Autodesk CFD mathematical modeling package. Velocity distribution was analyzed in tip vortices at distances of 20 mm, 30 mm, and 40 mm behind the plate (Figure 2).…”

Section: Figure 1 Parameters Of Spherical Macro-roughnessmentioning

confidence: 99%

Influence of macro-roughness on the leading edge of the plate on hydrodynamic losses

Ryzhenkov

Volkov

Cherepanov

et al. 2022

Nexo Revista Científica

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The paper presents research into the effects of macro-roughness on the leading edge of the plate imitating excrescences on the fins of humpback whales on the value of hydrodynamic losses. The authors compare calculations with experimental results obtained on a hydrodynamic flume. All studies are performed using the Ansys CFX and Autodesk CFD computer simulation packages. Based on the obtained findings, the authors make conclusions on the feasibility of applying macro-roughening on the leading edge of the plate. The conducted computational and experimental research demonstrates the positive effects of a certain configuration of spherical macro-roughness on the hydrodynamic characteristics of the plate in the case of spillage in an open-type hydrodynamic flume.

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Hydrodynamic modelling of the impact of viscosity on the characteristics of a centrifugal pump

Ткачук

Navas

Petrov

et al. 2019

IOP Conf. Ser.: Mater. Sci. Eng.

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Annotation During operation of industrial centrifugal pumps, the main factor affecting its performance is viscosity, which can change its value during operation of the pump unit. In most cases, the main cause of such changes is a change in the environmental conditions or an increase in the temperature of the unit during operation. This paper explores the possibility of using computer simulation to calculate a centrifugal pump at various viscosities of the working fluid. The results obtained are compared with data from the American Hydraulic Institute.

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Mathematical modeling of the mechanisms of volumetric hydraulic machines

Cited by 14 publications

References 11 publications

Mathematical modelling of the hydromechanical drive of the test bench for plunger hydraulic cylinders with energy recovery

Mathematical modelling of the hydromechanical drive of the test bench for plunger hydraulic cylinders with energy recovery

Influence of macro-roughness on the leading edge of the plate on hydrodynamic losses

Hydrodynamic modelling of the impact of viscosity on the characteristics of a centrifugal pump

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