Automatic system for modeling vibro-impact unloading bulk cargo on vehicles

Iskovych-Lototsky, Rostislav; Ivanchuk, Yaroslav; Veselovska, Natalia R.; Surtel, Wojciech; Sundetov, Samat

doi:10.1117/12.2501526

Cited by 17 publications

(5 citation statements)

References 7 publications

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“…A system with distributed parameters can represent a hydraulic line when modeling wave processes. The basic equations of unsteady fluid motion are the Navier-Stokes differential equations [10][11][12].…”

Section: Methodsmentioning

confidence: 99%

“…The given coefficients describe the elastic-viscous characteristics of the hydraulic link based on the mathematical model of Kelvin-Focht [8] with further linearization of the dynamic properties, namely the assumption of constancy of the combined modulus of elasticity, density, and dynamic viscosity of the operating fluid, and this leads directly to disregarding wave processes [9] in the hydraulic drive itself. In turn, the existing differential equations with distributed coefficients are supplemented by differential equations of flow rates [10] in partial integral solutions of nondiscontinuity and Navier-Stokes differential equations for an ideal operating fluid [11].…”

Section: Literature Reviewmentioning

confidence: 99%

“…One of the current scientific problems in hydromechanics is the description of the motion of a viscous, weakly compressed fluid, which is described by the continuity and Navier-Stokes equations [4,10,11]. These include fluid movement problems during laminar and turbulent flow around bodies of finite dimensions, currents in the wake zone and areas of flow disruption, and mixing and boundary layers at the body surface [17].…”

Section: Literature Reviewmentioning

confidence: 99%

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Modeling of Wave Processes in Hydraulic Drive Systems of Technological Equipment

Ivanchuk,

Belzetskyi,

Ozeranskyi

et al. 2024

JES

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The article, based on the performed theoretical research, solves the essential scientific and technical problem of increasing the accuracy of identification of wave processes in a hydrodynamic system (pipeline) by developing a generalized method of mathematical designing of the dynamics of a continuous viscous and weakly compressed fluid in the hydrodynamic system pipeline based on the Navier-Stokes equation. Amplitude-frequency characteristics represent parameters of wave processes in the hydraulic drive system. A partial solution of Navier–Stokes equations, under zero initial conditions, is proposed in the form of four-pole equations, the components of which are represented in the form of the Laplace image of the corresponding relative pressure and flow coordinates and the the hydraulic line parameters determine the four-pole elements themselves It is also proposed to determine the values of the four-pole elements based on time constants and relative damping coefficients on the frequency characteristics of hydraulic lines with distribution parameters based on the condition of equality of the first resonant frequencies and amplitudes (at these frequencies). With the help of the developed methods, the primary dynamic parameters of the amplitude-frequency characteristics of continuous viscous and weakly compressed liquid in the pipeline of hydraulic systems for different flow ranges. This made it possible to achieve the following practical results: the high degree of adequacy of the developed mathematical model indicates an increase in the reliability of determining the operating characteristics when designing a hydraulic drive. The high accuracy of determining the first resonant frequencies and amplitudes allows for creating a hydraulic pump with improved operational characteristics.

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Section: Methodsmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Modeling of Wave Processes in Hydraulic Drive Systems of Technological Equipment

Ivanchuk,

Belzetskyi,

Ozeranskyi

et al. 2024

JES

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show abstract

“…An automatic machine is a machine in which all the main and auxiliary movements necessary for the cycle of workpiece processing are automated, including loading and dispensing of the processed part. The worker should only periodically load a batch of blanks or bars and periodically control the dimensions of the parts [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Analysis Of Recent Research and Publicationsmentioning

confidence: 99%

Innovative Methods of Expanding the Functional Capabilities of the Single-Spindle Lathe

Veselovska,

Kosakovskyi,

Romanov

2023

Engineering, Energy, Transport Aic

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Turret lathes, which are automated turret machines, are widely used in large-scale and mass production. The use of automatic machines in small-scale production, which has a significant specific weight in instrument construction, was considered inadvisable until recently due to the fact that their reconfiguration takes a lot of time. Currently, thanks to the expansion of processing methods, which allow with minimal time consumption to go from the production of one part to the production of another part of the same group, automatic machines are increasingly used in small-scale production. The introduction of innovative methods to expand the technological capabilities of machines should go not only by increasing the accuracy of processing, a wider use of the expansion of functionality can be realized by equipping with auxiliary devices that can perform operations that improve the production of parts. One of the ways to improve the productivity of the automatic lathe is to use shaped cutters, which allow you to process the part faster and with better quality, and with the help of developing a methodology for calculating and adjusting the cams. The expansion of the technological capabilities of automatic machines should not only go by increasing the accuracy of processing, a wider use of the expansion of functional capabilities can be realized by equipping them with auxiliary devices that can perform such operations that improve production. One of the ways to improve the productivity of the automatic lathe is to use shaped cutters, which allow you to process the part faster and with better quality, and with the help of developing a methodology for calculating and adjusting the cams. Therefore, the topic of the article is relevant.

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“…Ця схема приводу, незважаючи на її простоту, має істотний недолік, що полягає в труднощі конструктивного виконання пристрою для регулювання частоти удару маси 3 по наголовнику 4, закріпленому на палі 5, при повному використанні потужності. У зв'язку з цим в роботі більш детально розглянуті схеми варіантів конструкцій, що забезпечують більшу технологічність при виготовленні та експлуатаційну надійність [2][3][4][5][6][7][8][9].…”

Section: а б рис 1 принципові схеми палезанурюючих машин: а -схема мо...unclassified

Increasing the Productivity of Pile Diving in Orchards and Vineyards by Using Hydrojet Technology

Iskovich-Lototskyy,

Shevchenko,

Veselovska

et al. 2023

Engineering, Energy, Transport Aic

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The need to solve the problem of reducing labor intensity, reducing the volume of earthworks, as well as reducing the time of the process of sinking piles in orchards and vineyards. Currently, the theoretical issues of the dynamics of piles when they are immersed in the soil have not been developed to the extent required by practice. The primary task here is to study the process of sinking the pile into the soil in order to achieve the required depth of immersion with minimal damage to the structure of the pile itself, and for it to perform the work that is set before it. Naturally, in the process of sinking piles into the soil, not only elastic, but also viscous, plastic properties of the soil are manifested and its destruction occurs. The theoretical tasks of sinking the pile into the soil, taking into account the viscous, plastic properties of the soil environment and the deformation characteristics of the pile material, have not been investigated. Nowadays, in connection with the circumstances that are currently happening in Krane, in the Vinnytsia region, the percentage of people's involvement in agricultural affairs is growing significantly, namely: in the planting of new garden and grape plantations and lands. There is a demand for immersion equipment that can quickly and efficiently perform the assigned tasks. Therefore, increasing the productivity of the process of sinking piles in orchards and vineyards through the use of hydrojet technology is an extremely relevant topic. The purpose of the article is to increase the productivity of the process of sinking piles in orchards and vineyards by using hydrojet technology. Creation of favorable conditions for the intensification of the production process and the application of effective methods of action on its object; continuous implementation of technological movement; reduction and general elimination of the use of unproductive labor; in particular, when performing auxiliary operations; management of the dynamic state of the system in which technological action takes place; the multifunctionality of the technological process and the harmonious combination of its main structural components are, for the most part, trends in the development of technical progress in the implementation of pile sinking.

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Automatic system for modeling vibro-impact unloading bulk cargo on vehicles

Cited by 17 publications

References 7 publications

Modeling of Wave Processes in Hydraulic Drive Systems of Technological Equipment

Modeling of Wave Processes in Hydraulic Drive Systems of Technological Equipment

Innovative Methods of Expanding the Functional Capabilities of the Single-Spindle Lathe

Increasing the Productivity of Pile Diving in Orchards and Vineyards by Using Hydrojet Technology

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