Investigation of the energy-saving hydraulic drive of a multifunctional automobile with a subsystem of accumulation of compressed air energy

Никонов, Вадим; Posmetev, Valeriy

doi:10.1088/1757-899x/441/1/012041

Cited by 15 publications

(3 citation statements)

References 4 publications

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“…A striking representative of multithreaded throttle flow dividers of the spool type is, in particular, the flow divider [5], the design scheme of which is shown in Fig. 1.…”

Section: Materials and Research Methodsmentioning

confidence: 99%

Analysis of multithreaded choke dividers and flow dividers-adders

Rybak,

Meskhi,

Rudoy

et al. 2024

BIO Web Conf.

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Hydraulic drives, which for the most part is multi-circuit and branched, are widely used in hydraulic drives of modern mobile equipment and technological equipment. The analysis of the conducted studies has shown that throttle flow dividers, as well as flow dividers-adders, are the most suitable for providing automatic control of multi-circuit systems. Dividers are used to separate one working fluid flow entering the divided into two independent streams with an arbitrary flow ratio independent of loads. If it is necessary to organize a larger number of threads, two-threaded DP and DSP are switched on sequentially, and then one additional thread divider must be installed to receive each subsequent stream. Thus, in order to obtain n threads, it is necessary to have (n-1) two-threaded thread dividers, which is quite expensive and technically unjustified. The article describes the designs of multithreaded choke dividers and flow dividers-adders and a comparative analysis of their basic properties is carried out.

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“…A striking representative of multithreaded throttle flow dividers of the spool type is, in particular, the flow divider [5], the design scheme of which is shown in Fig. 1.…”

Section: Materials and Research Methodsmentioning

confidence: 99%

Analysis of multithreaded choke dividers and flow dividers-adders

Rybak,

Meskhi,

Rudoy

et al. 2024

BIO Web Conf.

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“…The efficiency of the test bench, in terms of energy costs for testing, is determined by the test efficiency coefficient [38], which is the ratio of the power on the tested Ntest machine (in this case, hydraulic cylinders) to the power consumed by the electric motor NElm/ (5) The higher the efficiency coefficient, the more efficient, that is, more economical, the test system. From Figure 3 (b) it can be seen that the efficiency coefficient of the testing process of piston hydraulic cylinders on the proposed stand is close to 2, which means that the tests of hydraulic cylinders are carried out at twice the power consumed from the primary energy source.…”

Section: Modeling and Calculation Of The Hydraulic System Of The Test...mentioning

confidence: 99%

Modeling and calculation of the technological process of testing piston hydraulic cylinders with energy recovery

2023

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One of the most important problems of modern mechanical engineering is the energy efficiency of technological equipment and manufactured products. A separate issue in this series is the technology and means of testing finished product samples, including hydraulic machines. In this article, an original scheme of a test bench for piston hydraulic cylinders and a method of mathematical modeling of the process of its functioning, based on the application of the theory of volumetric rigidity of hydraulic systems, is proposed, which makes it possible to describe with high accuracy and reliability the processes occurring in the test system during its operation. The test efficiency coefficient is proposed, which makes it possible to evaluate and compare various test processes by the criterion of their energy efficiency. An example of a preliminary calculation of the functioning of the proposed stand is given.

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“…The analyses conducted in the literature aimed at the study of drives and test bench systems, taking into account the possibility of reducing the resource intensity of their tests, having shown that the most economical and resource-saving method is the use of regenerative drive systems with simultaneous creation of a load on the object and partial return of the converted energy to the test system [14][15][16]. However, this method is not without drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Improving the Efficiency of the Drive of the Test Bench of Rotary Hydraulic Machines

Rybak,

Meskhi,

Rudoy

et al. 2024

Actuators

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Volumetric hydraulic drive systems are quite widespread in many industrial sectors. To determine the degree of reliability of hydraulic machines, it is necessary to conduct resource tests. The main requirement for such tests is the compliance of the load level with the operating mode of the hydraulic machine. Analysis of existing methods of creating such a load showed a significant drawback of bench tests—the lack of useful work. Therefore, a number of authors suggest the use of stands with a regenerative drive system. One peculiarity of the work of such stands is the possibility of returning part of the spent energy back to the test system. However, such systems are insufficiently studied and have significant drawbacks. The purpose of this work is to increase the efficiency of the regenerative drive system of the test bench of volumetric hydraulic machines of rotational action by improving the theory and methodology of its calculation and design. This article describes the principle of operation of the circuit of the regenerative drive of the test bench of rotary hydraulic machines. A model of the elastic-dissipative state of the sections of the elements of the hydro-mechanical drive system of the stand is also proposed, which allows for the calculation of the structural and energy parameters of the regenerative hydro-mechanical system. The main structural and functional parameters affecting the operational performance of the system as a whole are also identified. A “test efficiency coefficient” is proposed, which allows for evaluation of the energy efficiency of the test process.

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Investigation of the energy-saving hydraulic drive of a multifunctional automobile with a subsystem of accumulation of compressed air energy

Cited by 15 publications

References 4 publications

Analysis of multithreaded choke dividers and flow dividers-adders

Analysis of multithreaded choke dividers and flow dividers-adders

Modeling and calculation of the technological process of testing piston hydraulic cylinders with energy recovery

Improving the Efficiency of the Drive of the Test Bench of Rotary Hydraulic Machines

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